Quantities in A Sentence

    1

    A dangerous bar at the mouth of the river permits the entrance only of the smaller coasting steamers, but the port is an important commercial centre, and exports considerable quantities of cotton, hides, manicoba, rubber, fruit, and palm wax.

    2

    A high silica-content tends towards both hardness and chemical stability, and this can be further increased by the addition of small proportions of boric acid; in larger quantities, however, the latter constituent produces the opposite effect.

    3

    A large number of plantations in British Malaya and Ceylon are now actively exporting increasing quantities of rubber.

    4

    A magnetizable substance was supposed to consist of an indefinite number of spherical particles, each containing equivalent quantities of the two fluids, which could move freely within a particle, but could never pass from one particle to another.

    5

    A second raid was made against Richmond early in August 1777; and on the 22nd of the same month American troops under General John Sullivan fought the British at several places, inflicted a loss of about 200 killed, wounded and prisoners and destroyed considerable quantities of stores.

    6

    A special branch is the making of scythes and sickles which are exported in large quantities.

    7

    A ware of which considerable quantities have found their way westward of late years in the Awcfji-yaki, so called from the island of Awaji where it is manufactured in the village of Iga.

    8

    About 1350 considerable quantities of colourless flat glass were supplied by John Alemayn of Chiddingfold for glazing the windows in St George's chapel, Windsor, and in the chapel of St Stephen, Westminster.

    9

    After the discovery of the radioactive properties of uranium by Henri Becquerel in 1896, it was noticed that some minerals of uranium, such as pitchblende, were more active than the element itself, and this circumstance suggested that such minerals contained small quantities of some unknown substance or substances possessing radioactive properties in a very high degree.

    10

    After the Ten Year's War seed of Mexican and United States tobaccos was in great demand to re-seed the ruined vegas, and was introduced in great quantities; and although by a later law the destruction of these exotic species was ordered, that destruction was in fact quite impossible.

    11

    Agricultural products, fruit and wool from the surrounding country are shipped in considerable quantities.

    12

    Agriculture is well developed and relatively large quantities of the principal cereals are produced.

    13

    Alcohol was used in Germany for many years before the World War in increasing quantities as a source of heat, but its application for light and power started about 1887.

    14

    All quantities stated in this article without distinguishing names are in British units of inch, cubic inch or grain.

    15

    All symmetric functions are expressible in terms of the quantities ap g in a rational integral form; from this property they are termed elementary functions; further they are said to be single-unitary since each part of the partition denoting ap q involves but a single unit.

    16

    All these commodities are exported in considerable quantities, besides bitumen, which is obtained from a mine worked by a French III.

    17

    Almost the only crop grown is rice, which is exported in large quantities to Rangoon.

    18

    Also, as the Cartesian geometry shows, all the relations between points are expressible in terms of geometric quantities.

    19

    Although enormous quantities of water are required during the summer season, great care must be exercised in applying water to the winter crops.

    20

    Ammonia is found in small quantities as the carbonate in the atmosphere, being produced from the putrefaction of nitrogenous animal and vegetable matter; ammonium salts are also found in small quantities in rain-water, whilst ammonium chloride (sal-ammoniac) and ammonium sulphate are found in volcanic districts; and crystals of ammonium bicarbonate have been found in Patagonian guano.

    21

    Antimony is found in large quantities near the town.

    22

    Apples are grown in such quantities as to entitle the county to the title applied to it, the orchard of Ireland.

    23

    As a rule the soluble salts if taken in sufficient quantities produce acute poisoning, and the insoluble salts chronic plumbism.

    24

    As in quaternions, so in the extensive calculus, there are numerous formulae of transformation which enable us to deal with extensive quantities without expressing them in terms of the primary units.

    25

    As purity and resolving power are essentially positive quantities, n i in the above expression must be the greater of the two frequencies.

    26

    As the lye becomes absorbed, a condition indicated by the taste of the goods, additional quantities of lye of increasing strength are added.

    27

    Associated with these new units there is a system of extensive quantities of the second species, represented by symbols of the type = Ei 121 [i=I, 2,...zn(n - I)].

    28

    Assuming then 01 to have the coefficients B1, B2,...B,, and f l the coefficients A 1, A21...A,n, we may equate coefficients of like powers of x in the identity, and obtain m+n homogeneous linear equations satisfied by the m+n quantities B1, 2, ...B n, A 1, A 2, ...A m.

    29

    At the age of nineteen he invented an electromagnetic engine, and in the course of examining its performance dissatisfaction with vague and arbitrary methods of specifying elec rical quantities caused him to adopt a convenient and scie tific unit, which he took to be the amount of electricity req ired to decompose nine grains of water in one hour.

    30

    Attar of roses is produced in large quantities both in European and Asiatic Turkey, and to aid in furthering the industry numerous rose plants are distributed gratuitously.

    31

    Australia possesses fields of great value, principally in the south-east (New South Wales and Victoria), and in New Zealand considerable quantities of coal and lignite are raised, chiefly in South Island.

    32

    Average Quantities of Raw Cotton imported Annually into the United Kingdom from the following Countries in the Periods 1896-1900 and 1901-1904.

    33

    Bananas are grown over a large and increasing area; rice, maize, barley, potatoes and beans are cultivated to some extent in the interior; cocoa, vanilla, sugar-cane, cotton and indigo are products of the warm coast-lands, but are hardly raised in sufficient quantities to meet the local demand.

    34

    Bananas are grown particularly in the region about Nipe, Gibara and Baracoa, whence they are exported in large quantities, though there is a tendency to lessen their culture in these parts in favour of sugar.

    35

    Bangor is one of the largest lumber depots in the United States, and also ships considerable quantities of ice.

    36

    Barsi is a flourishing centre of trade, exporting to Bombay large quantities of cotton and oil-seeds.

    37

    Before the days of the "higher criticism" and the rise of the modern scientific views as to the origin of species, there was much discussion among the learned, and many ingenious and curious theories were advanced, as to the number of the animals and the space necessary for their reception, with elaborate calculations as to the subdivisions of the ark and the quantities of food, &c., required to be stored.

    38

    Besides potatoes, which thrive well and yield large quantities of excellent quality, there are turnips, carrots, parsnips and beets.

    39

    Besides this, all their evidence is but approximate, often only stating quantities to a half or quarter of the amount, and seldom nearer than 5 or 10%; hence they are entirely worthless for all the closer questions of the approximation or original identity of standards in different countries; and it is just in this line that the imagination of writers has led them into the greatest speculations, unchecked by accurate evidence of the original standards.

    40

    Between 1840 and 1850, after the opening of trade with China, large quantities of silk were sent from the northern port of Shanghai, and afterwards also from the southern port of "Canton.

    41

    Beyond variable quantities of moisture and traces of carbonic acid, hydrogen, ammonia, &c., the only constituents recognized were nitrogen and oxygen.

    42

    Boone is an important coal centre; bricks and tiles are manufactured from the clay obtained near by; there is a packing plant for the manufacture of beef and pork products; and from the rich farming section by which the city is surrounded come large quantities of grain, some of which is milled here, and live-stock.

    43

    Brandy is produced in large quantities.

    44

    Brown coal or lignite is found chiefly in the north and north-west, but not in sufficiently large quantities to be exported; the total value of the output in 1907 was nearly £3,500,000.

    45

    Buckwheat flour is used in considerable quantities in some districts for the making of buckwheat cakes, eaten with maple syrup. These two make an excellent breakfast dish, characteristic of Canada and some of the New England states.

    46

    But he lost 15,000 men in the course of his seven days' retreat, and 20% of the remainder became ineffective from disease contracted in the swamps of the Chickahominy, while enormous quantities of valuable stores at White House on the Pamunkey had been burnt to avoid seizure by the enemy.

    47

    But the low temperature causes the moisture-laden winds to deposit here greater quantities of rain and snow than in the semi-arid regions below, which not only promote the growth of vegetation, but cause the activity of the springs, geysers and waterfalls.

    48

    By taking ivth or 10th of these quantities, decinormal or centinormal solutions are obtained.

    49

    Cereals, cotton, tobacco, rice and silk are produced, but most of the fertile lands have been abandoned to semi-nomads, who raise large quantities of live stock.

    50

    Changes of entropy must be calculated in terms of quantities of heat, and must be interpreted in a similar manner.

    51

    Cheroots come principally from Manila, but there are now large quantities imported into the United Kingdom from the East Indies and Burma.

    52

    Chromium also, in comparatively small quantities, is taking its place as a constituent of steel axles and tires, and in the manufacture of tool-steel.

    53

    Chromium ammonium sulphate, (NH4)2S04 Cr2(S04)3.24H20, results on mixing equivalent quantities of chromic sulphate and ammonium sulphate in aqueous solution and allowing the mixture to crystallize.

    54

    Chromium and a number of other rare minerals are known to exist, but probably not in commercially available quantities.

    55

    Clearer ideas of imaginary quantities and the " irreducible case " were subsequently published by Bombelli, in a work of which the dedication is dated 1572, though the book was not published until 1579.

    56

    Coal is also found in large quantities near Kelung and sulphur springs exist in the north of the island.

    57

    Coal was produced in 1908 in 30 states out of the 46 of the Union; and occurs also in enormous quantities in Alaska; 690,438 men were employed in this year in the coal mines.

    58

    Coal, chiefly bituminous, occurs in large quantities in Nova Scotia, British Columbia and in various parts of the north-west (lignite), though most of the anthracite is imported from the United States, as is the greater part of the bituminous coal used in Ontario.

    59

    Coco-nuts are grown in considerable quantities along the seashore, and rice is cultivated at Balek Palau and in the interior, but the jungle still spreads over wide areas.

    60

    Common salt acts as a manure when used in moderate quantities, but in strong doses is injurious to vegetation.

    61

    Considerable quantities of foreign ores and base bullion are also refined in the United States.

    62

    Considerable quantities of larch timber are imported into Britain for use in the dockyards, in addition to the large home supply.

    63

    Copper, silver, lead, and zinc are found in considerable quantities, and as regards quicksilver, Kwei-chow is probably the richest country in the world.

    64

    Cotton and woollen goods of all kinds are also made in large quantities, and among the other industrial products are beetroot sugar, spirits, chemicals, tobacco, starch, paper, pottery, and "Bohemian glass."

    65

    Denote by brackets () and [] symmetric functions of the quantities p and a respectively.

    66

    Derbyshire cheeses are exported or sent to London in considerable quantities; and cheese fairs are held in various parts of the county, as at Ashbourne and Derby.

    67

    Derbyshire has always been mainly a mining and manufacturing county, though the rich land in the south formerly produced large quantities of corn.

    68

    Endless masses of tall weeds, belonging to a few species, cover the face of the country - large Cruciferae, Cynareae and Umbelliferae - also large quantities of liquorice (Glycyrrhiza glabra and echinata) and Lagonychium, and the white ears of the Imperata.

    69

    England takes by far the greatest share of Burma's rice, though large quantities are also consumed in Germany, while France, Italy, Belgium and Holland also consume a considerable amount.

    70

    Enormous quantities of cherries, plums and apples are annually borne by the trees round Leipzig, Dresden and Colditz.

    71

    Escanaba has a water front of 8 m., and is an important centre for the shipment of iron-ore, for which eight large and well-equipped docks are provided - there is an ore-crushing plant here; considerable quantities of lumber and fish are also shipped, and furniture, flooring (especially of maple) and wooden ware (butter-dishes and clothes-pins) are manufactured.

    72

    Euboea at the present time produces a large amount of grain, and its mineral wealth is also considerable, great quantities of magnesia and lignite being exported.

    73

    Even prior to the discovery of petroleum in commercial quantities, a number of chemists had made determinations of the chemical composition of several different varieties, and these investigations, supplemented by those of a later date, show that petroleum consists of about 84% by weight of carbon with 12% of hydrogen, and varying proportions of sulphur, nitrogen and oxygen.

    74

    Every tube of electric force must therefore begin and end on electrified surfaces of opposite sign, and the quantities of positive and negative electricity on its two ends are equal, since the force E just outside an electrified surface is normal to it and equal to a/41r, where a is the surface density; and since we have just proved that for the ends of a tube of force EdS = E 1 dS', it follows that adS = a'dS', or Q = Q', where Q and Q' are the quantities of electricity on the ends of the tube of force.

    75

    Every year large quantities of porcelain and faience are sent from the provinces to the capital to receive surface decoration, and in wealth of design as well as carefulness of execution the results are praiseworthy.

    76

    Evolution and involution are usually regarded as operations of ordinary algebra; this leads to a notation for powers and roots, and a theory of irrational algebraic quantities analogous to that of irrational numbers.

    77

    Experimental conditions were thoroughly worked out; the necessity of working with hot or cold solutions was clearly emphasized; and the employment of small quantities of substances instead of the large amounts recommended by Klaproth was shown by him to give more consistent results.

    78

    Finally, the substance is reconverted into the first state at the temperature 0", completing the cycle by the abstraction of a quantity of heat By the application of the first law, the difference of the quantities of heat absorbed and evolved in the cycle must be equal to the work represented by the area of the cycle, which is equal to (p' - p") (v" - v') in the limit when the difference of pressure is small.

    79

    Fish of excellent quality and in great quantities abound on the coast.

    80

    Fishing for the tortoiseshell turtle gives employment to a large number of natives in the season, and considerable quantities of the shell are exported.

    81

    Foodstuffs could not be grown in the United Kingdom at sufficiently low prices, nor in sufficient quantities, to produce alcohol commercially and on a large scale.

    82

    For building and miscellaneous purposes, in addition to the rare woods above named, there are cedars (used in great quantities for cigar boxes); the pine, found only in the W., where it gives its name to the Isle of Pines and the province of Pinar del Rio; various palms; oaks of varying hardness and colour, &c. The number of alimentary plants is extremely great.

    83

    For efficiency the operation must be conducted with small quantities; caking may be prevented by mixing the substance with sand or powdered pumice, or, better, with iron filings, which also renders the decomposition more regular by increasing the conductivity of the mass.

    84

    For instance, 237578 w was printed @ 5070 8 3D; and the fact that Stevinus meant those encircled numerals to denote mere exponents is evident from his employing the very same sign for powers of algebraic quantities, e.g.

    85

    For large buildings where large quantities of hot water are used an independent boiler of suitable size should be installed.

    86

    For multiplication, for instance, we have the statement that, if P and Q are two quantities, containing respectively p and q of a particular unit, then p X Q = q X P; or the more abstract statement that p X q= q X p.

    87

    For the production of coloured sheet-glass, however, the employment of pot furnaces is still almost universal, probably because the quantities of glass required of any one tint are insufficient to employ even a small tank furnace continuously; the exact control of the colour is also more readily attained with the smaller bulk of glass which has to be dealt with in pots.

    88

    For the testing of spirits in bulk no more convenient instrument has been devised, but where very small quantities are available more suitable laboratory methods must be adopted.

    89

    Formerly this coast region furnished large quantities of Brazil-wood (Caesalpinia echinata), and the river valleys have long been the principal source of Brazil's best cabinet-wood - rosewood (Dalbergia nigra), jacaranda (Machaeriumfirmum,Benth.),vinhatico (Plathymenia foliosa, Benth.), peroba (Aspidosperma peroba), cedro, &c. The exotic mangabeira (mango) is found everywhere along the coast, together with the bamboo, orange, lemon, banana, cashew, &c.

    90

    Fort Worth lies in the midst of a stock-raising and fertile agricultural region; there is an important stockyard and packing establishment just outside the city; and considerable quantities of cotton are raised in the vicinity.

    91

    Fourteen years later, when curule aedile, he distributed large quantities of grain among the citizens at a very low price.

    92

    Franciscus Vieta (Francois Viete) named it Specious Arithmetic, on account of the species of the quantities involved, which he represented symbolically by the various letters of the alphabet.

    93

    From 1861-91 methylated spirits prepared in this way were allowed to be sold by retail in Great Britain in small quantities for domestic purposes such as cleaning, heating and lighting; but use in large quantities, or in manufacture, was only possible under special authority and under excise supervision.

    94

    From A Merely Formal Point Of View, We Have In The Barycentric Calculus A Set Of " Special Symbols Of Quantity " Or " Extraordinaries " A, B, C, &C., Which Combine With Each Other By Means Of Operations And Which Obey The Ordinary Rules, And With Ordinary Algebraic Quantities By Operations X And =, Also According To The Ordinary Rules, Except That Division By An Extraordinary Is Not Used.

    95

    From North Carolina, Alabama and Pennsylvania, also, phosphates have been obtained but only in comparatively small quantities.

    96

    From that time forward the Arita factories turned out large quantities of porcelain profusely decorated with blue under the glaze and colored enamels over it.

    97

    From that year until his Newdigate Prize, at the age of twenty, he wrote enormous quantities.

    98

    From the former come most of the manufactured goods imported and large quantities of raw materials; to the latter are sent food-stuffs.

    99

    From this source all soils contain small proportions of sodium in soluble forms, hence the ashes of plants, although they preferably imbibe potassium salts, contain traces and sometimes notable quantities of sodium salts.

    100

    Fruit, grain, wine and oil are produced in the islands, and there is an active trade with Barcelona in fresh fish, including large quantities of lobsters.

    101

    Fruits and vegetables are also grown in large quantities.

    102

    Further we find x=aX+a'Y+a"Z, y=bX z= cX+c'Y+ c"Z, and the problem is to express the nine coefficients in terms of three independent quantities.

    103

    Given internally in small quantities and in sufficient dilution, alcohol causes dilatation of;he gastric blood-vessels, increased secretion of gastric juice, and greater activity in the movements of the muscular layers in the wall of the stomach.

    104

    Gold and Zinc.-When present in small quantities zinc renders gold TABLE II.-Gold brittle, but it may be added to gold in larger quantities without destroying the ductility of the precious metal; Peligot proved that a triple alloy of gold, copper and zinc, which contains 5.8% of the lastnamed, is perfectly ductile.

    105

    Gold has a characteristic yellow colour, which is, however, notably affected by small quantities of other metals; thus the tint is sensibly lowered by small quantities of silver, and heightened by copper.

    106

    Gold has been found in small quantities in Middlesex, Norfolk and Plymouth counties.

    107

    Gold is exported in large quantities from Australia.

    108

    Gold is obtained in very small quantities in a few places in the Astin-tagh and the Kalta-alaghan.

    109

    Grain and fruit are grown in large quantities, and much coal is mined in the vicinity of Kirksville.

    110

    Grain is shipped to and from Jersey City in large quantities, and in general the city is an important shipping port; being included, however, in the port of New York, no separate statistics are available.

    111

    Graphic representation thus rests on the principle that equal numerical quantities may be represented by equal lengths, and that a quantity mA may be represented by a length mL, where A and L are the respective units; and the science of graphics rests on the converse property that the quantity represented by pL is pA, i.e.

    112

    Great quantities of bones have been found in caves and in swamps, so that now nearly every part of the skeleton, of some kind or other, is known.

    113

    Great quantities of early potatoes and vegetables, together with flowers and fish, are sent to London and elsewhere.

    114

    Great quantities of hay are harvested.

    115

    Hassenfratz and Adet, who assigned to each element a symbol, and to each compound a sign which should record the elements present and their relative quantities.

    116

    Hay is grown in largest quantities in the north, and in the section south-east of Blue Mountain.

    117

    He also imported great quantities of English coal and had an agency at Newcastle as well as an interest in some English mines.

    118

    He denotes quantities by the letters of the alphabet, retaining the vowels for the unknown and the consonants for the knowns; he introduced the vinculum and among others the terms coefficient, affirmative, negative, pure and adfected equations.

    119

    He introduced the idea of comparing the refractivity of equimolecular quantities of different substances by multiplying the function (n-1)/d by the molecular weight (M) of the substance, and investigated the relations of chemical grouping to refractivity.

    120

    He receives both the wild rubber containing variable quantities of impurity and the purer plantation rubber, the latter, however, in much smaller amount.

    121

    Hilversum manufactures large quantities of floor-cloths and horse-blankets.

    122

    His example stimulated the settlers at Panama, who had heard of a great people owning vast quantities of gold to the south of them.

    123

    His manner of life was simple in the extreme; his diet consisted chiefly of bread and milk and large quantities of coffee.

    124

    His notation is based primarily on that of Harriot; but he differs from that writer in retaining the first letters of the alphabet for the known quantities and the final letters for the unknowns.

    125

    Hull is the principal seat of the industry in Great Britain, and enormous quantities of Indian and Egyptian cotton seed are imported and worked up.

    126

    Hydrated sulphates occur at several localities in the province of Madrid and in other provinces of Spain, and at Miihlingen in Aargau, and copious deposits of glauberite, the double sulphate of sodium and calcium, are met with in the salt-mines of Villarrubia in Spain, at Stassfurt, and in the province of Tarapaca, Chile, &c. A native nitrate of soda is obtained in great abundance in the district of Atacama and the province of Tarapaca, and is imported into Europe in enormous quantities as cubic nitre for the preparation of saltpetre.

    127

    If d is measured for two gases in succession for the same frequency N, we have 72 p 2P1 d22 71 p i p s d12' where the suffixes denote the gases to which the quantities relate.

    128

    If for important walls, or for small scantlings such as steel concrete generally involves, the concrete should be deposited in quite small quantities and very carefully rammed ng osit- into position.

    129

    If for massive walls, it is usual to tip it out in large quantities from a barrow or wagon, and simply spread it in layers about a foot thick.

    130

    If the heat of solution be measured in a calorimeter, no work is done, so that, if we call this calorimetric heat of solution L, the two quantities are connected by the relation L = X+P(v - v).

    131

    If we wish to be more general, while still adhering to Deslandres' law as a correct representation of the frequencies when s is small, we may write n - A (s+ 1 1) 2 - - a Po+Pi(s + c) -F +pr(s+ c)r' where s as before represents the integer numbers and the other quantities involved are constants.

    132

    If, instead of one phase, we have r phases, we must find out the values of r(n - I) quantities before we know the composition of the whole system.

    133

    Immense quantities are imported into Britain from Norway, Sweden and Prussia, under the names of "white Norway," "Christiania" and "Danzig deal."

    134

    Immense quantities of bricks are made all over the country.

    135

    In 1798 the town mills were converted into a woollen manufactory, which up to recent times produced large quantities of cloth, and the serge manufacture was introduced early in the 19th century.

    136

    In addition large quantities are shipped at Baku direct for the Volga and the Transcaspian port of Krasnovodsk.

    137

    In addition to goods thus conveyed, enormous quantities of timber are floated down the Elbe; the Ix.

    138

    In addition to the mining, the district produces large quantities of wool.

    139

    In all British coal-mines, when gas in dangerous quantities has appeared within three months, and in all places that are dry and dusty, blasting is prohibited, except with Safety ex= c, „ permitted explosives, whose composition and pro perties have been examined at the testing station at the Royal Arsenal, Woolwich.

    140

    In an antilogarithmic table, the logarithms are exact quantities such as 00001, 00002, &c., and the numbers are incommensurable.

    141

    In former times large quantities of it were imported in a dry state into Europe for officinal purposes, the drug having the reputation of being efficacious in diseases of the skin and lungs; and even now it may be found in apothecaries' shops in the south of Europe, country people regarding it as a powerful aphrodisiac for cattle.

    142

    In France, where large stocks of alcohol were left over from the manufacture of explosives during the war, it was unable to compete with petrol as regards price, and was only being used in comparatively small quantities, and mixed with benzol.

    143

    In later memoirs Reynolds followed up this subject by proceeding to establish definitions of the velocity and the momentum and the energy at an element of volume of the molecular medium, with the precision necessary in order that the dynamical equations of the medium in bulk, based in the usual manner on these quantities alone, without directly considering thermal stresses, shall be strictly valid - a discussion in which the relation of ordinary molar mechanics to the more complete molecular theory is involved.

    144

    In making cigars by the hand, the operator rolls together a sufficient quantity of material to form the filling of one cigar, and experience enables him or her to select very uniform quantities.

    145

    In many deposits of iron ores found in connexion with igneous or metamorphic rocks small quantities of phosphate occur.

    146

    In mathematics, the term "mean," in its most general sense, is given to some function of two or more quantities which (1) becomes equal to each of the quantities when they themselves are made equal, and (2) is unaffected in value when the quantities suffer any transpositions.

    147

    In mining operations explosives are used on a large scale and the powder gases contain large quantities of the very poisonous gas, carbon monoxide, a small percentage of which may cause death, and even a minute percentage of which in the air will seriously affect the health.

    148

    In one experiment, specially undertaken for the sake of measurement, the total air employed was 9250 c.c., and the oxygen consumed, manipulated with the aid of partially deaerated water, amounted to 10,820 c.c. The oxygen contained in the air would be 1942 c.c.; so that the quantities of atmospheric nitrogen and of total oxygen which enter into combination would be 7308 c.c. and 12,762 c.c. respectively.

    149

    In proportioning the quantities of matrix to aggregate the ideal to be aimed at is to get a concrete in which the voids or air-spaces shall be as small as possible; and as the lime or cement is usually by far the most expensive item, it is desir able to use as little of it as is consistent with strength.

    150

    In Shan-hwa Fu coal is also found, but not in such quantities as in the places above named.

    151

    In small quantities, it may be prepared by the addition of concentrated sulphuric acid to a cold saturated solution of borax.

    152

    In solution minute quantities of gold may be detected by the formation of " purple of Cassius," a bluish-purple precipitate thrown down by a mixture of ferric and stannous chlorides.

    153

    In some localities, especially in the " Florida parishes," small quantities of rosin and turpentine are taken from the long-leaf pine, but this industry was unimportant in Louisiana before 1908.

    154

    In Sweden, where wood pulp is made in enormous quantities, the manufacture of alcohol from the waste sulphite lyes is carried on, and it was estimated that in 1920 the probable capacity was in the neighbourhood of 8,000,000 gal.; the actual production, however, amounted to about 2,750,000 gal.

    155

    In the Amazon valley fish is a principal article of food, and large quantities of pirarucu (Sudis gigas) are caught during the season of low water and prepared for storage or market by drying in the sun.

    156

    In the applications with which we are concerned, t, n are very small quantities; and we may take P = x yn - At the same time dS may be identified with dxdy, and in the de nominator p may be treated as constant and equal to f.

    157

    In the burntofferings of male kine to Isis, the carcase of the steer, after evisceration, was filled with fine bread, honey, raisins, figs, frankincense, myrrh and other aromatics, and thus stuffed was roasted, being basted all the while by pouring over it large quantities of sweet oil, and then eaten with great festivity.

    158

    In the case of all these substances the quantities involved are so very small, and the difficulties of estimation are therefore so great, that the information we possess is by no means satisfactory.

    159

    In the Indian trade, especially in the Calcutta trade, a large proportion of the total amount is done by a few houses who buy in this way, and there is some difference of opinion as to whether the method, which had fallen out of fashion, may not further develop. It is more speculative than the indent business, but the dealing with large quantities which it involves gives the opportunity to buy very cheaply.

    160

    In the neighbourhood large quantities of fruit are grown, including apples, pears, plums, gooseberries, and strawberries.

    161

    In the neighbourhood large quantities of wheat, hemp, fruit and cider are produced; and there are important coal and iron mines, foundries, and factories for the manufacture of coarse cloth.

    162

    In the Tertiary region are found small quantities of iron ore and an indifferent brown coal.

    163

    In the town of Raymond is a large beet sugar manufactory, and in the vicinity great quantities of beets are grown by irrigation.

    164

    In the town, which is only second to Northwich in this respect, large quantities of salt are raised and conveyed to Liverpool for exportation; being shipped in flats down the Weaver, which has been rendered navigable by an elaborate system of locks.

    165

    In the vicinity large quantities of coal are mined, for which the city is an important shipping point.

    166

    In this way large quantities of manure are easily transported to any required spot, and although the work looks hard to an English gardener, the Frenchman says he can carry more manure with less fatigue in half a day than an Englishman can transport in a day with a wheelbarrow.

    167

    Instead of the six ideal equations just described we have to combine a number of equations of various forms containing other quantities than the elements.

    168

    Investigations started in 1920 by the British Government, in connexion with the production of alcohol for power purposes, have shown, however, that there are large areas of suitable land in the British Empire where the cost of production would be comparatively low, and where it might be possible to grow vegetable substances in excess of food requirements, and in sufficient quantities to produce alcohol for local consumption to replace expensive petrol.

    169

    Iron and silver also exist in small quantities in different parts of the province, and hot and warm springs are very common at the foot of the hills along the northern and western edges of the province.

    170

    Iron goods and machinery, glass, earthenware, chemicals and wooden articles, including large quantities of toys, are produced; and various branches of textile industry are carried on.

    171

    Iron ore, ironstone, gold, galena, lead and copper are also found in considerable quantities in many districts.

    172

    Ironstone is not extensively wrought, but, on account of the abundant supply of coal, large quantities are imported for smelting purposes.

    173

    It can be kept unaltered in dry air, but the smallest trace of moisture in the atmosphere leads to the evolution of minute quantities of acetylene and gives it a distinctive odour.

    174

    It contains considerable quantities of the alkaloid pseudaconitine, which is the most deadly poison known.

    175

    It exports iodine and immense quantities of nitrate of soda obtained from the desert region of the province.

    176

    It gives in thousands of yards the quantities of cotton goods exported from Great Britain during 1903, 1904 and 1905 respectively, together with average value per yard for each of the countries.

    177

    It has a strong and characteristic odour, and a hot sweetish taste, is soluble in ten parts of water, and in all proportions in alcohol, and dissolves bromine, iodine, and, in small quantities, sulphur and phosphorus, also the volatile oils, most fatty and resinous substances, guncotton, caoutchouc and certain of the vegetable alkaloids.

    178

    It has been found that by a particular treatment, in which the mixing of large quantities of vegetable colouring agents with the food plays an important part, the ordinary "canary yellow" may be intensified so as to verge upon a more or less brilliant flame colour.'

    179

    It has manufactures of cloth, leather, chemicals and optical instruments; large quantities of beetroot sugar are produced in the neighbourhood; and there is a considerable transit trade on the Elbe.

    180

    It imports great quantities of wool from the Argentine and Australia, and is in regular communication with New York, London and the chief ports of the United Kingdom, Brazil and the far East.

    181

    It includes the properties of numbers; extraction of roots of arithmetical and algebraical quantities, solutions of simple and quadratic equations, and a fairly complete account of surds.

    182

    It is also found in small quantities in sea-water, in some seaweeds, and in various mineral and medicinal springs.

    183

    It is also the largest market for fresh-water fish in America, and handles large quantities of lumber and grain.

    184

    It is by the help of numbers that concrete quantities are practically measured and calculated.

    185

    It is clear that, when two opposite streams of ions move past each other, equivalent quantities are liberated at the two ends of the system.

    186

    It is evident that Wittich's prosthaphaeresis could not be a good method of practically effecting multiplications unless the quantities to be multiplied were sines, on account of the labour of the interpolations.

    187

    It is limited to Disco Island, and perhaps to a small part of the Noursoak Peninsula, and the neighbouring country, and consists of numerous thin beds of sandstone, shale and coal - the sideritic shale containing immense quantities of leaves, stems, fruit, &c., as well as some insects, and the coal pieces of retinite.

    188

    It is produced in immense quantities at Stassfurt from the so-called "Abraumsalze."

    189

    It is produced now in considerable quantities, but the modern ware falls far short of its predecessor.

    190

    It is really not extraordinary that Isaac Hollandus was able to indicate the method of the preparation of the " philosopher's stone " from " adamic " or " virgin " earth, and its action when medicinally employed; that in the writings assigned to Roger Bacon, Raimon Lull, Basil Valentine and others are to be found the exact quantities of it to be used in transmutation; and that George Ripley, in the 15th century, had grounds for regarding its action as similar to that of a ferment.

    191

    It is the centre of one of the chief dairy districts of Canada, and ships large quantities of cheese and butter.

    192

    It is the chief seat of the glass pearl and imitation jewelry manufacture, and has also an important textile industry, and produces large quantities of hardware, papier mache and other paper goods.

    193

    It is, however, probable that the North-Western Territory will continue to yield gold in important quantities for some time to come.

    194

    It may be that the study of such sums, which he found in the works of Diophantus, prompted him to lay it down as a principle that quantities occurring in an equation ought to be homogeneous, all of them lines, or surfaces, or solids, or supersolidsan equation between mere numbers being inadmissible.

    195

    It might be expected that there should be a decrease in the Greenland seal fisheries, caused by the European and American sealers catching larger quantities every year, especially along the coasts of Newfoundland and Labrador, and so actually diminishing the number of the animals in the Greenland seas.

    196

    It must be used with extreme care, and in small quantities, and it must not be used at all where cuts or cracks are present in the skin.

    197

    It seems that this reverse electromotive force of polarization is due to the deposit on the electrodes of minute quantities of the products of chemical decomposition.

    198

    Jerked beef (pasdirma) is also prepared in large quantities for winter use.

    199

    Kentucky also grows considerable quantities of cherries, pears, plums and peaches, and, for its size, ranks high in its crops of strawberries, blackberries and raspberries.

    200

    Large quantities are also evaporated and exported.

    201

    Large quantities are consumed fresh, but many are pickled or smoked and others prepared like anchovies.

    202

    Large quantities of benzoin are used as incense.

    203

    Large quantities of coal and tea are exported.

    204

    Large quantities of condensed milk, put up in hermetically sealed tins, are sold fcr use in mining camps and on board steamships.

    205

    Large quantities of crin vegetal (vegetable horse-hair) an excellent fibre, are made from the leaves of the dwarf palm.

    206

    Large quantities of eels are caught in the Frisian lakes.

    207

    Large quantities of fruits - apples, pears, quinces, peaches, nectarines, apricots, grapes and melons - were exported by special trains to central Europe, where the Turkestan crop was received a short time before the south European supplies ripened.

    208

    Large quantities of grain are imported from Russia, America, &c., and of timber from Norway and Sweden.

    209

    Large quantities of grain are shipped in lighters to Braila.

    210

    Large quantities of ground mica are used in the manufacture of wall-paper, and to produce a frosted effect on toys, stage scenery, &c. Powdered mica is also used in the manufacture of paints and paper, as a lubricant, and as an absorbent of nitro-glycerine and disinfectants.

    211

    Large quantities of lac and tussur silk are gathered in the hilly tract.

    212

    Large quantities of lard, brawn and pigs' feet are exported.

    213

    Large quantities of phosphate rock were formerly shipped from here.

    214

    Large quantities of rice are imported from German East Africa.

    215

    Large quantities of seaweed as well as lime and marl are available for manure.

    216

    Large quantities of small fruits, particularly of strawberries, raspberries and blackberries, are produced, the southern portion of Sussex county being particularly favourable for strawberry culture.

    217

    Large quantities of timber are floated down the Ilz.

    218

    Large quantities of timber are imported from Canada and Norway; coal, iron, manufactured goods and agricultural produce are the chief exports.

    219

    Larger quantities of deposit may be conveniently collected by means of the dredge, which can be worked in any depth and brings up large stones, concretionary nodules or fossils, of the existence of which a sounding-tube could give no indication.

    220

    Lead and zinc are mined in much smaller quantities, alum and sulphur are also.

    221

    Lead and zinc are mined in small quantities near Marion in Crittenden county and elsewhere in connexion with mining for fluorspar; in 1907 the output was 75 tons of lead valued at $7950 and 358 tons of zinc valued at $4 2, 2 44.

    222

    Lead is of frequent occurrence, and indeed the area through which copper, silver, lead, tin and zinc are distributed in sufficient quantities to make mining answer, comprises at least 80,000 sq.

    223

    Leaving the consideration of radical changes of a vibrating system out of account for the present, the minor differences which have been observed in the appearances of spectra under different sparking conditions are probably to a large extent due to differences in the quantities of material examined, though temperature must alter the violence of the impact and there is a possible effect due to a difference in the impact according as the vibrating system collides with an electron or with a body of atomic dimensions.

    224

    Leitmeritz is situated in the midst of a very fertile country, called the "Bohemian Paradise," which produces great quantities of corn, fruit, hops and wines.

    225

    Let X and Y be the related quantities, their expressions in terms of selected units A and B being x and y, so that X=x.A, Y = y.

    226

    Like all alkalis if given in quantities they increase metabolism.

    227

    Loamy soils contain a considerable quantity (30-45%) of clay, and smaller quantities of lime, humus and sand.

    228

    Lobsters and fish in considerable quantities are shipped from the city.

    229

    Long droughts often destroy the wheat and Indian corn and compel their importation in large quantities to supply thepeople with food.

    230

    Maize, beans and bananas, varied occasionally with dried meat and fresh pork, form their staple diet; drunkenness is common on pay-days and festivals, when large quantities of a fiery brandy called chicha are consumed.

    231

    Manufactured in large quantities it soon became an essential part of infantry as well as of artillery and machine-gun equipment.

    232

    Marineus Siculus, writing early in the 16th century, says that the best glass was made at Barcelona; and Gaspar Baneiros, in his Chronographia, published in 1562, states that the glass made at Barcelona was almost equal to that of Venice and that large quantities were exported.

    233

    Market gardening is a considerable industry, and large quantities of vegetables are raised under glass for the Boston markets.

    234

    Meanwhile kaime was being issued in great quantities (about 60,000 purses a month) and fell to a discount (December 1861) of 75%.

    235

    Menhaden are caught in much larger quantities in New York than any other fish, but being too bony for food they are used only in the manufacture of oil and fertilizer.

    236

    Mexico.-Cotton is extensively grown in Mexico, and large quantities are used for home consumption.

    237

    Michael Stifel and Johann Scheubelius (Scheybl) (1494-1570) flourished in Germany, and although unacquainted with the work of Cardan and Tartalea, their writings are noteworthy for their perspicuity and the introduction of a more complete symbolism for quantities and operations.

    238

    Mieres is the chief town of a mountainous, fertile and well-wooded region in which coal, iron, and copper are extensively mined and sulphur and cinnabar are obtained in smaller quantities.

    239

    Mining is only of slight importance, small quantities of coal and iron-ore being extracted in the Alpine foothill region; graphite is found near Miihldorf.

    240

    More than thirty mineral substances are obtained in commercial quantities from the mines, quarries and wells of New York, but of the total value of the mineral products in 1908 ($45,6 6 9, 861), nearly six-sevenths was' represented by clay products ($8,929,224), pig iron ($15,879,000), stone ($6,157,279), cement ($ 2, 2 54,759), salt ($2,136,738), petroleum ($2,071,533), and sand and gravel ($1,349,163).

    241

    Most of the large Texas rivers have deposited great quantities of silt along their lower courses on the Coastal Plain, where the current is often sluggish and the banks are periodically overflowed.

    242

    Most of the virgin forests of the northern section were cut in the latter half of the 19th century, while abandoned farms in the south were becoming reforested, and the value of the state's lumber and timber products increased from $1,099,492 in 1850 to $4,286,142 in 1870, and to $9,218,310 in 1900 and then decreased to $7,519,431 in 1905; since 1890 large quantities of wood, chiefly spruce, have also been used in the manufacture of paper and wood pulp. In 1909 a forestry commission was established.

    243

    N.B.-A trifling quantity of Californian and Australian wheat was imported in the period in question, but the Board of Trade records do not distinguish the quantities, therefore they cannot be given.

    244

    Naphtha is also obtained, though in much smaller quantities, in Terek and Kuban, in Tiflis and Daghestan.

    245

    Natural gas is found to consist mainly of the lower paraffins, with varying quantities of carbon dioxide, carbon monoxide, hydrogen, nitrogen and oxygen, in some cases also sulphuretted hydrogen and possibly ammonia.

    246

    Natural-rock cement was first made in the state soon after the discovery, in 1831, of deposits of cement rock near Williamsport, Lycoming county, and the industry was greatly promoted in 1850 when the vast deposits in the lower Lehigh Valley were discovered and large quantities of cement were required in the rebuilding of the Lehigh Canal.

    247

    Negative quantities will have arisen in various ways, e.g.

    248

    Neumann, who, in 1831, deduced from observations on many carbonates (calcium, magnesium, ferrous, zinc, barium and lead) that stoichiometric quantities (equimolecular weights) of compounds possess the same heat capacity.

    249

    None of them, in point of fact, has held its ground, and even his proposal to denote unknown quantities by the vowels A, E, I, 0, u, Y - the consonants B, c, &c., being reserved for general known quantities - has not been taken up. In this denotation he followed, perhaps, some older contemporaries, as Ramus, who designated the points in geometrical figures by vowels, making use of consonants, R, S, T, &c., only when these were exhausted.

    250

    Now by elementary algebra we know that if the number of independent equations be equal to the number of unknown quantities all the unknown quantities can be determined, and can possess each one value only.

    251

    Oats and wheat are grown in almost equal quantities, barley being of rather less importance.

    252

    Oats is the principal crop, but rye, potatoes and flax are also grown in considerable quantities.

    253

    Of quicksilver there are several mines, chiefly in the Palatinate of the Rhine; and small quantities of copper, manganese and cobalt are obtained.

    254

    On its thoroughness depends the removal of small quantities of products other than the nitrates, for instance, some sulphates and products from impurities contained in the original cellulose.

    255

    On the lower Umzimkulu, near Port Shepstone, marble is found in great quantities.

    256

    On the other hand, Vieta was well skilled in most modern artifices, aiming at a simplification of equations by the substitution of new quantities having a certain connexion with the primitive unknown quantities.

    257

    Oranges, lemons, limes, figs, mangoes, grapes and peaches, besides a considerable variety of vegetables, are raised in small quantities for local consumption.

    258

    Other minerals found in small quantities are copper, lead, zinc, iron ores, manganese ores and tin.

    259

    Oxides of iron and manganese can only be used in glass manufacture in comparatively small quantities for the purpose of colouring or neutralizing colour in glass, and their introduction would not be a matter of sufficient importance to be specially recorded.

    260

    Paraffins are found in all crude oils, and olefines in varying proportions in the majority, while acetylene has been found in Baku oil; members of the benzene group and its derivatives, notably benzene and toluene, occur in all petroleums. Naphthenes are the chief components of some oils, as already indicated, and occur in varying quantities in many others.

    261

    Peaches and pears grow in large quantities in Kent and neighbouring counties on the East Shore and in Washington and Frederick counties; apples grow in abundance in all parts of the Piedmont Plateau.

    262

    Pennsylvania has extensive areas of limestone rock suitable for making cement, and in Northampton and Lehigh counties enormous quantities of it are used in this industry.

    263

    Perez says that the Sarare branch of the Apure has formed a gigantic dam across its own course by prodigious quantities of trees, brush, vines and roots, and thus, impounding its own waters, has cut a new channel to the southward across the lowlands and joined the Arauca, from which the Sarare may be reached in small craft and ascended to the vicinity of Pamplona.

    264

    Phosphoric acid, in the form of phosphates, is a most valuable plant food, and is absorbed by most plants in fairly large quantities from the soil.

    265

    Pigs are reared in large quantities all over the country, but the principal centres for distribution are Debreczen, Gyula, Bares, Szeged and Budapest.

    266

    Potassium cyanide, KNC, and sodium cyanide, NaNC, are two of the most important of the salts of hydrocyanic acid, the former being manufactured in large quantities for consumption in the extraction of gold.

    267

    Potatoes, however, are grown in large quantities north and west of the White Mountains; and this district leads in the number of cattle and sheep, and in the production of all the cereals except Indian corn.

    268

    Prospect, at the base of which there is a vein of pyrrhotite, with small quantities of nickel and copper.

    269

    Proust, on the other hand, maintained that compounds always contain definite quantities of their constituent elements, and that in cases where two or more elements unite to form more than one compound, the proportions in which they are present vary per sallum, not gradually.

    270

    Quantities can be learned from experience, and from watching individual cases; frequency varies within very wide limits, from reptiles which at most may feed once a week and fast for long periods, to the smaller insectivorous birds which require to be fed every two or three hours, and which in the winter dark of northern latitudes must be lighted up once or twice in the night to have the opportunity of feeding.

    271

    Quantities of marble were formerly taken from quarries in the vicinity.

    272

    Quantities of raw and refined cane and beet sugar in tons avoirdupois imported into the United Kingdom in 1870 and in 1875, and yearly from 1880 to 1901 inclusive, with the consumption per head of the population in lb and the price per cwt.

    273

    Recalling the formulae above which connect s P4 and a m, we see that dP4 and Dp q are in co-relation with these quantities respectively, and may be said to be operations which correspond to the partitions (pq), (10 P 01 4) respectively.

    274

    Remark, too, that we are in association with non-unitary symmetric functions of two systems of quantities which will be denoted by partitions in brackets ()a, ()b respectively.

    275

    Rice is grown in such quantities as to procure for Formosa, in former days, the title of the " granary of China "; and the sweet potato, taro, millet, barley, wheat and maize are also cultivated.

    276

    Salt is also found in large quantities; but mining and quarrying are not practised on a large scale; only lead, lignite and asphalt being worked.

    277

    Salt is obtainable from the many pans in the plateaus, notably in the Zout(salt)pansberg, and was formerly manufactured in considerable quantities.

    278

    Salt, as also some iron and copper, and small quantities of gold are extracted.

    279

    Sawdust, slabs, stumps and large quantities of logs are wasted.

    280

    Sea-aster flourishes in the Wadden of Friesland and Groningen, the Dollart and the Zeeland estuaries, giving place nearer the shore to sandspurry (Spergularia), or sea-poa or floating meadow grass (Glyceria maritima), which grows up to the dikes, and affords pasture for cattle and sheep. Along the coast of Overysel and in the Biesbosch lake club-rush, or scirpus, is planted in considerable quantities for the hat-making industry, and common sea-wrack (Zostera marina) is found in large patches in the northern half of the Zuider Zee, where it is gathered for trade purposes during the months of June, July and August.

    281

    Shaft furnace smelting is confined to those parts of the world where charcoal can still be obtained in large quantities at moderate prices.

    282

    Silver and gold are produced, but they are not known to exist in any large quantities.

    283

    Silver follows gold in importance, but the other minerals met with, including gypsum, mica, petroleum, natural gas, granite, marble and tin are not found in paying quantities.

    284

    Sir John Murray finds the source of the phosphoric acid to be the decomposition of large quantities of animal matter, and he illustrates this by the well-known circumstance of the death of vast shoals of fish when warm Gulf-Stream water displaces the cold current which usually extends to the American coast.

    285

    Sisal hemp is grown, sponges are found in some quantities off the coast and there are four sponge-curing factories on the Caicos Islands.

    286

    Skey showed that in substances which contain small quantities of gold the precious metal may be removed by the solvent action of iodine or bromine in water.

    287

    Small quantities are occasionally met with in iron pyrites, and hence tellurium is found with selenium in the flue dust, or chamber deposits of sulphuric acid works.

    288

    Small quantities of ebony and sandal-wood are exported.

    289

    Small quantities of the iodate (KIO 3) are a frequent impurity in iodide of potassium, and cause the congeries of symptoms known as iodism.

    290

    Soft clams, lobsters, hard crabs and soft crabs are other shell-fish obtained in small quantities.

    291

    Solingen is one of the chief seats of the German iron and steel industry, its speciality consisting in all kinds of cutlery, Solingen sword-blades have been celebrated for centuries, and are widely used outside Germany, while bayonets, knives, scissors, surgical instruments, files, steel frames and the like are also produced in enormous quantities.

    292

    Springfield is a trading and shipping centre for a prosperous agricultural region, and ships large quantities of bituminous coal from the immediate vicinity.

    293

    Sugar-cane, maize, tapioca and other similar products are grown, however, in smaller quantities.

    294

    Sugar-works were established, and considerable quantities of the produce exported to the mother country.

    295

    Sugar, cotton, Indian corn, beans and considerable quantities of wheat are grown, but agriculture is largely hampered by the uncertainty of the rainfall.

    296

    Sugarcane, tobacco, maguey, cotton, in small quantities, and fruits are also produced.

    297

    Tartaric acid, which is sometimes present in large quantities as an adulterant in commercial citric acid, may be detected in the presence of the latter, by the production of a precipitate of acid potassium tartrate when potassium acetate is added to a cold solution.

    298

    Temperance in the use of alcohol has followed the demonstration not only of its unimportance as a food or tonic, but also of its harmfulness, save in very small quantities.

    299

    The " cradle " is a simple appliance for treating somewhat larger quantities, and consists essentially of a box, mounted on rockers, and provided with a perforated bottom of sheet iron in which the " pay dirt " is placed.

    300

    The addition of a foot-bridge greatly facilitates the raising and lowering of these shutter weirs, and also aids the regulation of the discharge; but it renders this form of weir much more costly than the ordinary frame weir, and where large quantities of drift come down with sudden floods, the frames of the bridge are liable to be carried away, and therefore boats must be relied on for working the weir.

    301

    The addition of silicon in small quantities considerably diminished permeability and increased coercive force; but when the proportion amounted to 2.5% the maximum permeability (µ =5100 for H =2) was greater than that of the nearly pure iron used for comparison, while the coercive force was only 0.9.

    302

    The addition of small quantities of lime, especially in a caustic form, to stiff greasy clays makes them much more porous and pliable.

    303

    The analogous formula appertaining to n systems of quantities which Vienna Transactions, t.

    304

    The application of the theory of real numbers to physical quantities involves analogous considerations.

    305

    The area ABCD, representing the work, W, per cycle, is the difference (H' - H") of the quantities of heat absorbed and rejected at the temperatures 0 and 0".

    306

    The arithmetical mean of n quantities is the sum of the quantities divided by their number n.

    307

    The arithmetico-geometrical mean of two quantities is obtained by first forming the geometrical and arithmetical means, then forming the means of these means, and repeating the process until the numbers become equal.

    308

    The attempt to apply numerical methods to the comparison of geometrical quantities led to the doctrine of incommensurables, and to that of the infinite divisibility of space.

    309

    The Bad Lands of the White river are also noted for their wealth of animal fossils, which have been found in such quantities as to cause geologists to believe that the vertebrates perished there in droves during a severe storm or flood.

    310

    The bituminous is of excellent quality for the manufacture of coke and gas, but up to 5902 had been mined only in small quantities.

    311

    The bullion left in the retorts is then melted in black-lead crucibles, with the addition of small quantities of suitable fluxes, e.g.

    312

    The calorific power of Baku oil appears to be highest, while this oil is poorest in solid hydrocarbons, of which the American petroleums contain moderate quantities, and the Upper Burma oils the largest amount.

    313

    The Carpathian system is richer in metallic ores than any other mountain system of Europe, and contains large quantities of gold, silver, copper, iron, lead, coal, petroleum, salt, zinc, &c., besides a great variety of useful mineral.

    314

    The chief manufactures are silk goods (21.6% of all in value) and other textiles, but large quantities of foundry and machine-shop products, malt liquors, flour, and planing mill products are also manufactured.

    315

    The city is an important railway centre, has extensive railway repair shops and stock-yards, and exports large quantities of live-stock, hides and wool.

    316

    The city is the see of a Protestant Episcopal bishop. Wilmington is chiefly a commercial city, and ships large quantities of cotton, lumber, naval stores, rice, marketgarden produce and turpentine; in 1909 the value of its exports was $23,310,070 and the value of its imports $1,282,724.

    317

    The coinage had not only been seriously debased during the closing years of the Tokugawa regime, but large quantities of paper currency had been issued and circulated, both by many of the feudal lords, and by the central government itself, as a temporary expedient for filling an impoverished exchequer.

    318

    The conglomerate bands and quartzites contain large quantities of iron pyrites deposited subsequent to their formation, that in the conglomerates containing the gold.

    319

    The cultivated products include coffee, the Coco-nut palm, tobacco, sugar-cane, cotton, vanilla, sorghum, earthnuts, sesame, maize, rice, beans, peas, bananas (in large quantities), yams, manioc and hemp. Animal products are ivory, hides, tortoiseshell and pearls.

    320

    The danger of explosion when gas exists in very small quantities is greatly increased by the presence of coal dust.

    321

    The device known as the method of least squares, for reducing numerous equations of condition to the number of unknown quantities to be determined, had been adopted as a practically convenient rule by Gauss and Legendre; but Laplace first treated it as a problem in probabilities, and proved by an intricate and difficult course of reasoning that it was also the most advantageous, the mean of the probabilities of error in the determination of the elements being thereby reduced to a minimum.

    322

    The diluted form, in toxic quantities, will cause symptoms usually within a few seconds.

    323

    The district has thirty-three villages and is famous for its celebrated shkhan dates, which are exported in great quantities; it also produces much tobacco and fruit.

    324

    The efficiency of such ventilating furnaces is low, and they cannot safely be used in mines producing fire-damp. They are sometimes the cause of underground fires, and they are always a source of danger when by any chance the ventilating current becomes reversed, in which case the products of combustion, containing large quantities of carbon dioxide, will be drawn into the mine to the serious danger of the men.

    325

    The Elbe produces excellent pike, salmon and eels, its tributaries trout in considerable quantities, while the marshy ponds lying on the left bank furnish a good supply of carp, a fish held in great esteem by the inhabitants.

    326

    The electric density on the sphere being uniform, the quantities of electricity on these areas are proportional to the areas, and if the electric force varies inversely as the square of the distance, the forces exerted by these two surface charges at the point in question are proportional to the solid angle of the little cone.

    327

    The electrical conductivity of a metal is often very much decreased by alloying with it even small quantities of another metal.

    328

    The enormous quantities of Roman coins may be accounted for by consideration of the well-known practice of the Romans to make these imperishable monuments subservient towards perpetuating the memory, not only of their conquests, but also of those public works which were the natural result of their successes in remote parts of the world.

    329

    The evidence for this view, that all these agencies are at bottom connected together and parts of the same scheme, was enormously strengthened during the latter half of the 19th century by the development of a relation of simple quantitative equivalence between them; it has been found that we can define quantities relating to them, under the names of mechanical energy, electric energy, thermal energy, and so on, so that when one of them disappears, it is replaced by the others to exactly equal amount.

    330

    The existence of sulphuretted hydrogen in great quantities below loo fathoms, the extensive chemical precipitation of calcium carbonate, the stagnant nature of its deep waters, and the absence of deep-sea life are conditions which make it impossible to discuss it along with the physical and biological conditions of the Mediterranean proper.

    331

    The exports include copper and silver and their ores, nitrate of soda, borax, guano and other minerals in small quantities.

    332

    The fishery is also carried on along the coast of Norfolk and Suffolk, where great quantities of the fish are caught with hook and line, and conveyed to market alive in "well-boats" specially built for this traffic. Such boats have been in use since the beginning of the '8th century.

    333

    The formation of hydrogen is caused by small traces of metallic calcium occasionally found free in the carbide, and cases have been known where this was present in such quantities that the evolved gas contained nearly 20% of hydrogen.

    334

    The former is imported in large quantities from the Sambar lake and Ramsur.

    335

    The fruit is eaten in great quantities in the southern states of America,.

    336

    The Gall-bladder may be ruptured by external violence, and if bile escapes from the rent in considerable quantities peritonitis will be set up, whether the bile contains septic germs or not.

    337

    The Geestlande comprise the suburban districts encircling the city on the north and west; the Marschlande includes various islands in the Elbe and the fertile tract of land lying between the northern and southern arms of the Elbe, and with its pastures and market gardens supplying Hamburg with large quantities of country produce.

    338

    The general procedure is to make a series of standard solutions containing definite quantities of the substance which it is desired to estimate; such a series will exhibit tints which deepen as the quantity of the substance is increased.

    339

    The geometrical interpretation of imaginary quantities had a far-reaching influence on the development of symbolic algebras.

    340

    The geometrical mean of n quantities is the nth root of their product.

    341

    The gold is found in minute particles arid in the richest ores the metal is rarely in visible quantities before treatment.

    342

    The Gork goldfields, which are visible from Koko Nor, are reported to have yielded to China considerable quantities of gold as lately as 1888.

    343

    The grain crop suffices only for a few months' local consumption; but considerable quantities of olive oil of good quality are produced.

    344

    The graphic method, therefore, does not give any direct assistance towards the conception of negative numbers as operators, though it is useful for interpreting negative quantities as results.

    345

    The great catches are herring, cod and ling, but lobsters and crabs are also exported in large quantities.

    346

    The Greeks created the sciences of geometry and of number as applied to the measurement of continuous quantities.

    347

    The growth during the Civil War was partly due to the rapid development of the manufacturing interests of the city, which supplied large quantities of iron products and of clothing to the Federal government.

    348

    The harmonic mean of n quantities is the arithmetical mean of their reciprocals.

    349

    The heading "Measurement of Dynamical Quantities" includes the topics units, measurements, and the constant of gravitation.

    350

    The hypothesis that the state was steady, so that interchanges arising from convection and collisions of the molecules produced no aggregate result, enabled him to interpret the new constants involved in this law of distribution, in terms of the temperature and its spacial differential coefficients, and thence to express the components of the kinetic stress at each point in the medium in terms of these quantities.

    351

    The indigo plant is grown in large quantities in the plain country to the north of Mukden, and is transported thence to the coast in carts, each of which carries rather more than a ton weight of the dye.

    352

    The knowledge of these laws, however, does not imply the existence of a conception of negative quantities.

    353

    The latex of this tree flows less freely than that of Hevea brasiliensis, and the collection of large quantities of the latex is attended with considerable difficulty.

    354

    The latter is not sufficiently retentive of moisture and gets too hot in summer and requires large quantities of organic manures to keep it in good condition.

    355

    The leached guanos and phosphatized rocks, which are grouped with them for commercial purposes, have been obtained in great quantities in many islands of the Pacific Ocean (such as Baker, Howland, Jarvis and McKean Islands) between long.

    356

    The liquid is run into the iodine still and gently warmed, manganese dioxide in small quantities being added from time to time, when the iodine distils over and is collected.

    357

    The low price of grain, which was imported in huge quantities from Sicily and other Roman provinces, operated to crush the small holder, at the same time as it made arable farming unremunerative.

    358

    The main objection to the Hempel is the retention of liquid in the beads, and the consequent inapplicability to the distillation of small quantities.

    359

    The manufacture of alcohol from the sulphite lyes of the wood-pulp industry was contemplated, but carbide, although produced in increasing quantities, was not considered as a possible raw material owing to its greater importance as a source of the fertilizer cyanamide.

    360

    The manufacture of great quantities of coke has resulted from the demand for this product in the iron and steel industry and from the abundance of coking coal; the manufacture of glass has been promoted by the supply of glass sand and natural gas in the west of the state; the manufacture of leather by the abundance of hemlock bark; the manufacture of pottery, terra-cotta and fire-clay products by the abundance of raw material; the manufacture of silk and silk goods by the large number of women and girls who came into the state in families of which the men and boys were employed in mining and picking anthracite coal; and in each of these industries as well as in a few others the state has for many years produced a large portion of the country's product.

    361

    The manufactures are insignificant; and although silver, copper, iron, zinc, lead and marble are said to exist in considerable quantities, the only ores that have been worked are gold, silver and copper.

    362

    The market-gardening of the region called the Westland, between the Hague and the Hook of Holland, is remarkable, and large quantities of vegetables are exported to England.

    363

    The methods which can be and have been employed from time to time for the formation of acetylene in small quantities are exceedingly numerous.

    364

    The mineral wealth of Baden is not great; but iron, coal, zinc and lead of excellent quality are produced, and silver, copper, gold, cobalt, vitriol and sulphur are obtained in small quantities.

    365

    The mineral wealth of Salzburg includes salt at Hallein, copper at Mitterberg, iron-ore at Werfen, marble in the Untersberg region and small quantities of gold near the Goldberg in the Rauris valley and at Bockstein in the Gastein valley.

    366

    The mineral wealth of Saxe-Coburg-Gotha is insignificant, small quantities of coal, lignite, ironstone and millstone being annually raised.

    367

    The minerals discovered in Guatemala include gold, silver, lead, tin, copper, mercury, antimony, coal, salt and sulphur; but it is uncertain if many of these exist in quantities sufficient to repay exploitation.

    368

    The most notable gas discovery is that at Medicine Hat, which has wells with unlimited quantities.

    369

    The mountains afford excellent pasturage for sheep and cattle, which were reared in great quantities in ancient times, and seem to have given the island its name; these pastures belonged to the state.

    370

    The number of cod is still further reduced by the trade carried on in roe, large quantities of which are used in France as groundbait in the sardine fishery, while it also forms an article of human food.

    371

    The occurrence of negative quantities does not, however, involve the conception of negative numbers.

    372

    The orchards and gardens in which many villages are embosomed yield delicious fruits of almost every description, and great quantities, dried, are exported, principally to Russia.

    373

    The ore of the metal occurring in the Mississippi basingalena----is scattered widely and in large quantities, and being easily smelted by the roughest possible methods was much used at an early date.

    374

    The outer and inner products of two extensive quantities A, B, are in many ways analogous to the quaternion symbols Vab and Sab respectively.

    375

    The path of a ray from the wave-surface A 0 B 0 to the point A is changed; but in virtue of the minimum property the change may be neglected in calculating the optical distance,as it influences the result by quantities of the second order only in the changes of refrangibility.

    376

    The place is surrounded by extensive vineyards and orchards, all well watered by canals led from the river, and producing great quantities of fruit for exportation to Russia.

    377

    The potassium salt is obtained by crystallizing equivalent quantities of potassium and auric chlorides.

    378

    The presence of minute quantities of cadmium, lead, bismuth, antimony, arsenic, tin, tellurium and zinc renders gold brittle, 2 ' 0 15th part of one of the three metals first named being sufficient to produce that quality.

    379

    The presence of ordinary impurities usually tends to diminish the permeability, though, as will appear later, the addition of small quantities of certain other substances is sometimes advantageous.

    380

    The principal step in the modern development of algebra was the recognition of the meaning of negative quantities.

    381

    The principal tobacco-growing regions are Vredefort, which produced 258,645 lb in 1904, and Kroonstad (80,385 lb), the districts of Bethlehem, Ladybrand and Winburg also producing considerable quantities.

    382

    The process is not very efficient, since the solutions are too dilute and large quantities of liquid have to be handled.

    383

    The processes of manufacture have been improved by the introduction of specially constructed evaporators, and quantities of maple sugar and syrup are annually exported.

    384

    The production of ozone in small quantities during electrolysis, and by the so-called silent discharge, has long been known, and the Siemens induction tube has been developed for use industrially.

    385

    The progress of analytical geometry led to a geometrical interpretation both of negative and also of imaginary quantities; and when a " meaning " or, more properly, an interpretation, had thus been found for the symbols in question, a reconsideration of the old algebraic problem became inevitable, and the true solution, now so obvious, was eventually obtained.

    386

    The props used are preferably of small oak or English larch, but large quantities of fir props, cut to the right length, are also imported from the north of Europe.

    387

    The purity of the carbide entirely depends on the purity of the material used in its manufacture, and before this fact had been fully grasped by manufacturers, and only the purest material obtainable employed, it contained notable quantities of compounds which during its decomposition by water yielded a somewhat high pro portion of impurities in the acetylene generated from it.

    388

    The quadratic mean of n quantities is the square root of the arithmetical mean of their squares.

    389

    The quantities for India have been computed from information furnished by the India office, and publications made under authority of the secretary of state and the commercial intelligence department of the Indian government.

    390

    The quantities of oxygen and carbonic acid in the sea are nearly constant so far as we can determine.

    391

    The quantities of these are relatively small, and, excepting rabbits from Australia, they show no general tendency to increase.

    392

    The quarry mines on the top of the hill near Tawmaw produce enormous quantities, but the quality is not so good.

    393

    The raised temperature appears to facilitate the oxidation of the substance, so that quantities may be taken and completely utilized which would completely intoxicate the individual had his temperature been normal.

    394

    The reliefs upon it are sometimes of considerable beauty, and large quantities of it, and the sites of several of the kilns, have been discovered in and near Arretium.

    395

    The resistance offered by the liquid, and therefore the force F, required to drive one grammemolecule through the liquid with unit velocity is the sum of the corresponding quantities for the individual ions.

    396

    The rivers and lakes yield enormous quantities of fish, and leeches also are plentiful.

    397

    The rock was found in much greater quantities at Rosendale, in Ulster county, in 1823, and the amount of this cement produced by New York rose to 4,689,167 barrels in 1899; the state is still the chief producer but only 947,929 barrels were made in 1908.

    398

    The significance of relation (I) is best appreciated by considering the graphic representation of quantities of heat and energy on a work-diagram.

    399

    The significance of the word "mean," i.e., middle, is seen by considering 3 instead of n quantities; these will be denoted by a, b, c. The arithmetic mean b, is seen to be such that the terms a, b, c are in arithmetical progression,.

    400

    The similar theorem for n systems of quantities can be at once written down.

    401

    The southern half of the province, that portion south of the Yangtsze Kiang, forms part of the Nan-shan, or hilly belt of the south-eastern provinces, and produces, besides cotton, coal and iron ore, large quantities of green tea.

    402

    The surrounding country is very fertile and produces large quantities of rice, as well as Indian corn, tobacco, sugar, coffee and a great variety of fruits.

    403

    The surrounding district produces quantities of wheat and fruits for export, and much excellent wine is made.

    404

    The tea plant was first introduced in Natal in 1850, but little attention was paid to it until the failure of the coffee plantations about 1875, since when only small quantities of coffee have been produced.

    405

    The terms trinomial, quadrinomial, multinomial, &c., are applied to expressions composed similarly of three, four or many quantities.

    406

    The town and neighbourhood have been long noted for their lime and cement, and large quantities of potters', pipe, fire and other kinds of clay are sent to Staffordshire and to foreign countries.

    407

    The unknown he terms arithmos, the number, and in solutions he marks it by the final s; he explains the generation of powers, the rules for multiplication and division of simple quantities, but he does not treat of the addition, subtraction, multiplication and division of compound quantities.

    408

    The usual dose, at starting, is one or two drachms, but the oil should be given eventually in the largest quantities that the patient can tolerate.

    409

    The vessels of later date which have been found in considerable quantities, principally in the coast towns and islands of the Mediterranean, are amphorae and alabastra, also decorated with zigzag lines.

    410

    The vineyards (in the west especially) yield much red wine (bought "mainly by Rouen, Cette, Trieste and Venice); the currant, introduced about 1859, has gradually come to be the principal source of wealth (the crop averaging 2,500,000 lb); and small quantities of cotton, flax, tobacco, valonia, &c., are also grown.

    411

    The volume contains also dissertations on Logarithms and on the Limits of Quantities and Ratios, and a few problems illustrative of the ancient geometrical analysis.

    412

    The vomiting may take place every two or three days, enormous quantities of undigested food mixed with frothy, yeast-like mucous being thrown up. And whilst the stomach is slowly filling up again after one of these uncontrollable emptyings, sudden and violent movements of the individual may cause the fluid to give rise to audible "splashings."

    413

    The water of most of the springs and geysers holds silica in solution in considerable quantities, so that as it cools and evaporates it deposits a dazzling white sinter which has covered many square miles of the valleys and contrasts strongly with the dark green of the surrounding forests.

    414

    The water-supply of London is considered under that heading; it may be noted here that the Thames forms the chief source of supply for the metropolis, but apart from this the corporation of Oxford and two companies in the Staines district have powers to draw water from the river, though not in any large quantities.

    415

    The wine of the neighbourhood, which resembles port, is shipped in large quantities from Barcelona; and the district furnishes fine roses and strawberries for the Barcelona market.

    416

    The woods and mountains harbour large quantities of game, such as red deer, roedeer, wild boars and hares.

    417

    The World's Commercial Cotton Crop. It is impossible to give an exact return of the total amount of cotton produced in the world, owing to the fact that in China, India and other eastern countries, in Mexico, Brazil, parts of the Russian empire, tropical Africa, &c., considerable - in some cases very large - quantities of cotton are made up locally into wearing apparel, &c., and escape all statistical record.

    418

    The Yenangyat oil-fields, which produce quantities of petroleum, are in the south of the district, and iron used to be worked in a small way.

    419

    Theconglomerates are true " banket " and are auriferous, but the gold has not been met with in payable quantities.

    420

    Then by solving these equations, regarding the six elements as unknown quantities, the values of the latter may be computed.

    421

    Thenceforward the manufacture continued to grow in importance; glass vessels were made in large quantities, as well as glass for windows.

    422

    There are also cases in which graphics and mensuration are used jointly; a variable numerical quantity is represented by a graph, and the principles of mensuration are then applied to determine related numerical quantities.

    423

    There are also present small quantities of arsenic and antimony, and zinc is found generally as a mere trace, but sometimes reaching to 6%.

    424

    There are large quantities of salmon in the lower Columbia river, in Gray's and Willapa harbours, and in Puget Sound; oyster fisheries in Gray's and Willapa harbours and in Puget Sound; cod, perch, flounders, smelt, herring and sardines in these and other salt waters.

    425

    There are limestone quarries in nearly two-thirds of the counties and great quantities of the stone are used for flux in the iron furnaces, for making quicklime, for railway ballast and for road making.

    426

    There are then 2n(n-I) quantities b rs .

    427

    There is a consider able amount of gold-mining in the district, which, however, is chiefly pastoral, although cereals, tobacco and wine are produced in considerable quantities.

    428

    There is only one fairly reliable treatment, that by serum therapeutics, the injection of considerable quantities of serum of animals which have e?

    429

    These last two steps may introduce magnitudes which have to be subtracted, and which therefore have to be treated as negative quantities in the arithmetical.

    430

    These latter pass to automatic weighing machines, which drop them, in quantities of 1 cwt., into wooden boxes of uniform measurement, made to contain that weight; and the boxes are then conveyed to the storehouse, ready for sale.

    431

    These potassium minerals are not confined to Stassfurt; larger quantities of sylvine and kainite are met with in the salt mines of Kalusz in the eastern Carpathian Mountains.

    432

    These stresses will be unknown quantities, which the designer cannot take into account, and such a combination should if possible be avoided.

    433

    These, with the paper, linen and cotton goods manufactured locally in small quantities, are exported from Adra.

    434

    They also collect honey in large quantities.

    435

    They are all more or less poisonous, paralysing their prey before, or during the act of swallowing; the poison-fangs standing so far back in the mouth, these snakes cannot easily inflict wounds with them on man; moreover, the poison is not very strong and not available in large quantities.

    436

    They consist, in most parts of the country, of unconsolidated sediments, consisting of gravel, sand, clay, &c., together with large quantities of tuff, volcanic agglomerate, &c. Some of the sedimentary formations are of marine, some of brackish water, and some of terrestrial origin.

    437

    They still manufacture quantities of tea and coffee sets, and dinner or dessert services of red-and-gold porcelain for foreign markets; but about 1885 some of them made zealous and patient efforts to revert to the processes that won so much fame for the old Kutaniyaki, with its grand combinations of rich, lustrous, soft-toned glazes.

    438

    This and the difficulty of obtaining accurate experimental results fully account for the differences inter se in the values of the quantities calculated.

    439

    This applies also to quaternions, but not to extensive quantities, nor is it true for linear algebras in general.

    440

    This backwater, where it meets and checks the current of the Arkansas, occasions the precipitation of enormous alluvial deposits, and vast quantities of snags.

    441

    This consists mainly in the storing only of such fruits as are dry and in proper condition; in judicious ventilation, especially in the presence of large quantities of newlygathered fruit; in the prompt removal of all decaying fruit; and in the exclusion of vermin.

    442

    This does not mean, what is often alleged, that nobody before him had ever thought of choosing symbols different from numerals, such as the letters of the alphabet, to denote the quantities of arithmetic, but that he made a general custom of what until his time had been only an exceptional attempt.

    443

    This equation is generally true for any series of transformations, provided that we regard H and W as representing the algebraic sums of all the quantities of heat supplied to, and of work done by the body, heat taken from the body or work done on the body being reckoned negative in the summation.

    444

    This experiment proves that when a charged body acts by induction on an insulated conductor it causes an electrical separation to take place; electricity of opposite sign is drawn to the side nearest the inducing body, and that of like sign is repelled to the remote side, and these quantities are equal in amount.

    445

    This fact is of extreme importance in the theory of algebraic forms, and is easily representable whatever be the number of the systems of quantities.

    446

    This involved not only the geometrical interpretation of negative quantities, but also the idea of continuity; this latter, which is the basis of modern analysis, leading to two separate but allied developments, viz.

    447

    This is generally effected by adding the calculated amount of potassium chloride (of which immense quantities are obtained as a by-product in the Stassfurt salt industry) dissolved in hot water to a saturated boiling solution of sodium nitrate; the common salt, which separates on boiling down the solution, is removed from the hot solution, and on cooling the potassium nitrate crystallizes out and is separated and dried.

    448

    This is not inconsistent with the law of gravitation, for such estimates as have been made of planetary perturbations due to stars give results which are insignificant in comparison with quantities at present measurable.

    449

    This led to a prolonged controversy on the nature of negative and imaginary quantities, which was ultimately settled in a very curious way.

    450

    This merely thermal energy - which is gradually but very slowly being restricted in amount as new subsidiary organized types become recognized in it - though transmutable in equivalent quantities with the other kinds, yet is so only to a limited extent; the tracing out of the laws of this limitation belongs to the science of thermodynamics.

    451

    This ore, metallurgically, was not reckoned of much value, until immense quantities of it were discovered in Nevada and in Colorado (U.S.).

    452

    This plain produces large quantities of indigo and opium, and is physically remarkable for the number of isolated conical hills which dot its surface.

    453

    This residue consists of sodium, potassium and lithium chlorides, with small quantities of caesium and rubidium chlorides.

    454

    This theorem was published in 1643, at the end of his treatise De motu gravium projectorum, and it was confirmed by the experiments of Raffaello Magiotti on the quantities of water discharged from different ajutages under different pressures (1648).

    455

    This was the demonstration of the fact that gold existed in large quantities along the western slope of the Sierra Nevada of California.

    456

    Though cod is much the most important fish (in 1905 fresh cod were valued at $991,679, and salted cod at $696,928), haddock (fresh, $1,051,910; salted, $17,194), mackerel (value in 1905, including horse mackerel, $970,876), herring (fresh, $266,699; salted, $114,997), pollock ($267,927), hake ($258,438), halibut ($218,232), and many other varieties are taken in great quantities.

    457

    Thus every quaternion may be written in the form q = Sq+Vq, where either Sq or Vq may separately vanish; so that ordinary algebraic quantities (or scalars, as we shall call them) and pure vectors may each be regarded as special cases of quaternions.

    458

    Thus Strabo states that in his time a process was employed for refining and purifying gold in large quantities by cementing or burning it with an aluminous earth, which, by destroying the silver, left the gold in a state of purity.

    459

    Thus, to investigate the composition of the system we must be able to calculate the value of r (n-1) unknown quantities.

    460

    Tibet produces a large number of medicinal plants much prized by the medical profession in China and Mongolia, among others the Cordyceps sinensis, the Coptis teeta, Wall., and Pickorhiza kuwoa, Royle, &c. Rhubarb is also found in great quantities in eastern Tibet and Amdo; it is largely exported for European use, but does not appear to be used medicinally in the country.

    461

    Timber is also exported, being floated in large quantities down the Lule.

    462

    Titanium is alloyed in small quantities with aluminium for use in naval architecture.

    463

    To determine these variables we may form equations between the chemical potentials of the different components - quantities which are functions of the variables to be determined.

    464

    To get an idea of the magnitudes of the quantities involved, let us take the case of an aperture of 1 in., about that of the pupil of the eye.

    465

    To guard against explosions from this cause it is necessary to use explosives in moderate quantities and to see that the blast-holes are properly placed, so that the danger of blown-out shots may be lessened.

    466

    To that country fresh fish is sent in large quantities, and there is an important trade in canned salmon between British Columbia and Great Britain.

    467

    To these may be added emery, steatite, barytes, felspar and ochre, in considerable quantities; excellent lithographic stone is obtained at Solenhofen; and gold and silver are still worked, but to an insignificant extent.

    468

    To-day a spinner who is asked to quote for deliveries of yarn for, say, the next six months, may obtain from a broker quotations for deliveries of the cotton that he needs, in quantities as he needs it, for the next six months, and upon these quotations he may base his own for yarn.

    469

    Traces of ancient workings were found in several places, but the ores did not contain gold in paying quantities.

    470

    Tracing, then, the quantities of oil given per 1,000 fish from year to year, they seemed to establish a connexion between the variation in " condition " of the fish, the variation in the inflow of Atlantic water, and the variation in the number of sunspots from year to year.

    471

    Trinidad has railway shops, foundry and machine shops, and coking ovens, ships large quantities of coal, has a woolscouring mill, and various manufactures.

    472

    Trinidad is in a coal and coke and stock-raising region, and alfalfa, frijole and sugar beets are produced in large quantities in the surrounding region, much of which is irrigated.

    473

    Turning to the study of radioactivity, he noticed its association with the minerals which yield helium, and in support of the hypothesis that that gas is a disintegration-product of radium he proved in 1903 that it is continuously formed by the latter substance in quantities sufficiently great to be directly recognizable in the spectroscope.

    474

    Unfortunately, however, the confusion engendered by a defective organization has long been a byword among the people; there is no printed catalogue, quantities of books are buried in packingcases and unavailable, the collection of foreign books is very poor, hardly any new works being purchased, and the building itself is quite inadequate and far from safe; but the site of a new one has now been purchased and the plans are agreed upon, so that eventually the whole collection will be transferred to more suitable quarters.

    475

    Until the development of copper mining, silver was produced only in small quantities along with gold, but as much more silver than gold was obtained from the copper ores the value of the silver product increased from $2,630,000 in 1881 to $24,615,822 in 1892.

    476

    Using average prices paid for nitrogen, phosphoric acid and potash when bought in large quantities and in good forms, these ingredients, in a ton of cotton seed, amount to $9.00 worth of fertilizing material.

    477

    Veins of cinnabar are known elsewhere in the Rocky Mountain and Sierra Nevada regions but not in workable quantities.

    478

    Venetian beads are now sent in large quantities to the various colonies in Africa, and to India, Sumatra and Borneo.

    479

    Very large quantities of potatoes are grown, especially in the Vogtland.

    480

    Vineyards are cultivated by a German colony and large quantities of wine are made.

    481

    Vosges in summer, and large quantities of cheese (Munster cheese) are made and exported.

    482

    Wall-saltpetre or lime saltpetre, calcium nitrate, Ca(N03)2, is found as an efflorescence on the walls of stables; it is now manufactured in large quantities by fixing atmospheric nitrogen, i.e.

    483

    Watertown is situated in a fertile agricultural and dairying region, of which it is a distributing centre, and it ships large quantities of farm produce and dairy products (especially cheese).

    484

    We may therefore form an orthogonal transformation in association with every skew determinant which has its leading diagonal elements unity, for the Zn(n-I) quantities b are clearly arbitrary.

    485

    We must count with something; and the successive somethings obtained by the addition of successive units are in fact numerical quantities, not numbers.

    486

    Wheat, barley, oats, rye, maize, flax, hemp and tobacco are grown in large quantities, and the products of the vineyards are of a good quality.

    487

    Wheat, maize, rice, oil, flax and hemp, of fine quality, are grown in considerable quantities; as well as saffron, madder, liquorice, sumach, and a variety of fruits.

    488

    When a suitable temperature for the fusion of the particular glass in question has been attained, the mixture of raw materials is introduced in comparatively small quantities at a time.

    489

    When nickel was added to the iron in increasing quantities the coercive force increased until the proportion of nickel reached 20%; then it diminished, and when the proportion of nickel was 32% the coercive force had fallen to the exceedingly low value of 0.5.

    490

    When the relative quantities of the components can vary continuously within certain limits, the substance is either a solution or a mixture.

    491

    When these fires occur while the trees are full of sap, a curious mucilaginous matter is exuded from the half-burnt stems; when dry it is of pale reddish colour, like some of the coarser kinds of gum-arabic, and is soluble in water, the solution resembling gumwater, in place of which it is sometimes used; considerable quantities are collected and sold as " Orenburg gum "; in Siberia and Russia it is occasionally employed as a semi-medicinal food, being esteemed an antiscorbutic. For burning in close stoves and furnaces, larch makes tolerably good fuel, its value being estimated by Hartig as only one-fifth less than that of beech; the charcoal is compact, and is in demand for iron-smelting and other metallurgic uses in some parts of Europe.

    492

    When we are familiar with the treatment of quantities by equations, we may ignore the units and deal solely with numbers; and (ii.) (a) and (ii.) (b) may then, by the commutative law for multiplication, be regarded as identical.

    493

    When, however, we come to the equation x 2 --- 5, where we are dealing with numbers, not with quantities, we have no concrete facts to assist us.

    494

    Where large quantities of fire-damp are present, safety-lamps of approved pattern must be used and carefully inspected daily.

    495

    While mensuration is concerned with the representation of geometrical magnitudes by numbers, graphics is concerned with the representation of numerical quantities by geometrical figures, and particularly by lengths.

    496

    Wine is made in considerable quantities in the principal vine-growing districts, and in several localities large vineyards have been planted for this purpose.

    497

    Wine is manufactured in large quantities, but the output is not sufficient to meet the home demand.

    498

    With the possible exception of oats, the cereals do not suffice for home consumption, and maize is imported in large quantities for cattle-feeding, and barley for the distilleries and breweries.

    499

    Wooden or steel buckets, holding from 35 to 200 gallons, are employed only for temporary or auxiliary service or for small quantities of water in shallow shafts.

    500

    Y ...a n v, the summation being for all permutations of the n numbers, is called the determinant of the n 2 quantities.