Layer in A Sentence

    1

    A chocolate sponge was the outer layer, with toffee / butterscotch flavored ice cream in the middle!

    2

    A differentiation of the peripheral cytoplasm in the form of an ectoplasmic layer has been described in one or two instances, and it seems probable that in most Trypanosomes there is such a layer, although only poorly developed, as a rule, around the body generally.

    3

    A freshly prepared surface of the metal closely resembles zinc in appearance, but on exposure to the air it rapidly tarnishes, becoming yellowish and ultimately grey or white in colour owing to the formation of a surface layer of calcium hydrate.

    4

    A fur- ‘ - ther peculiarity of this type of colony is that theentire coenosarcal complex is covered externally by a common layer of ectoderm; it is not clear how this covering layer is developed.

    5

    A heavy lump hammer is required if you find any concretions from the ' Crackers ' layer.

    6

    A layer of cork is regularly formed in most Phanerogams across the base of the petiole before leaf fall, so as to cover the wound caused by the separation of the leaf from the stem.

    7

    A layer of dried slurry is loaded on this, then a layer of coke, then a layer of slurry, and so on until the kiln is filled with coke and slurry evenly distributed.

    8

    A layer of sheet zinc or tin has frequently to be used as protection from rats.

    9

    A loose layer of earth spread over the surface of the soil acts in the same way, and a similarly effective mulch may be prepared by hoeing the soil, or stirring it to a depth of one or two inches with harrows or other implements.

    10

    A medusa has a layer of muscles, more or less strongly developed, running in a circular direction on the surface of the subumbrella, the contractions of which are antagonized by the elasticity of the gelatinous substance of the body.

    11

    A more complicated case is illustrated by Sphaerobolus, where the entire mass of spores, enclosed in its own peridium, is suddenly shot up into the air like a bomb from a mortar by the elastic retroversion of a peculiar layer which, up to the last moment, surrounded the bomb, and then suddenly splits above, turns inside out, and drives the former as a projectile from a gun.

    12

    A pair of electric arcs play between these electrodes and the molten steel, passing through the layer of slag, G, and generating much heat.

    13

    A peculiarity of larch wood is the difficulty with which it is ignited, although so resinous; and, coated with a thin layer of plaster, beams and pillars of larch might probably be found to justify Caesar's epithet " igni impenetrabile lignum "; even the small branches are not easily kept alight, and a larch fire in the open needs considerable care.

    14

    A pine needle grown iji continuous light differs from one grown under ordinary conditions in the absence of hypodermal fibres, in the absence of the characteristic infoldings of the mesophyll cell-walls, in the smaller size of the resin-canals, &c. The endodermis in Pinus, Picea and many other genera is usually a well-defined layer of cells enclosing the vascular bundles, and separated from them by a tissue consisting in part of ordinary parenchyma and to some extent of isodiametric tracheids; but this tissue, usually spoken of as the pericycle, is in direct continuity with other stem-tissues as well as the pericycle.

    15

    A single layer of epidermic cells, some of which are glandular, forms the outer layer.

    16

    A small amount of purified protein derivative (PPD) solution is injected just under the first layer of skin of your inner forearm.

    17

    A special resin called gelcoat is always used as the outermost layer in fiberglass lamination.

    18

    A striking feature in the roots of several genera, excluding the Abietineae, is the occurrence of thick and somewhat irregular bands ofthickening on the cell-walls of the cortical layer next to the endodermis.

    19

    A superficial layer of recent volcanic tuffs occurs in several parts of the island.

    20

    A tapetal layer is derived from the cells surrounding the sporogenous group, and the arrest of a number of the spore-mother-cells further contributes to the nourishment of the remainder, each of which gives rise to four spores.

    21

    Above this squared architrave were laid the joists of the ceiling, and those of the floor upon the layer of ashes.

    22

    Accordingly the diplostichous ommatoeum or soft tissue of the Arachnid's central eye should strictly be called " triplostichous," since the deep layer is itself doubled or folded.

    23

    Adding another layer of separation between past-Deidre and his mate settled some of his turmoil.

    24

    Adobe Photoshop layer comp support Control the visibility of layer comps in linked, embedded, or opened Photoshop files from within Illustrator.

    25

    Adult seals have a thick layer of fat, called blubber, under their skin.

    26

    After invagination is completed, the embryo begins to elongate, the blastopore becomes narrower, and the dorsal wall of the gastrula loses its convexity, and becomes flattened to form the dorsal plate, the outer layer of which is the primordium of the neurochord and the inner layer the primordium of the notochord.

    27

    After oxidation, the product is reduced by heating with carbon, care being taken to prevent any loss through volatilization, by covering the mass with a layer of some protective substance such as potash, soda or glauber salt, which also aids the refining.

    28

    After the body of a spermatozoid has coalesced with the egg-nucleus the latter divides repeatedly and forms a mass of tissue which grows more vigorously in the lower part of the fertilized ovum, and extends upwards towards the apex of the ovum as a peripheral layer of parenchyma surrounding a central space.

    29

    Again, the most convenient site for oil wells is the crest of an anticline or "dome," where an impervious stratum imprisons the gas and oil in a subjacent saturated layer under pressure.

    30

    Along the whole northern rim of Bosnia, as also in the fluvial and Karst valleys (poljes), are found diluvial and alluvial formations, interrupted at one place by an isolated granite layer.

    31

    Also, many problems with Chlorine containing solvents have been found (specifically the ozone layer) which makes this process somewhat less favorable.

    32

    Although a thick layer of clouds hid the sun, the air wasn't any cooler.

    33

    Among the simplest cases are the sheet-like aggregates of sporogenous hyphae in Puccinia, Uromyces, &c., or of basidia in Exobasidium, Corticium, &c., or of asci in Exoascus, Ascocorticium, &c. In the former, where the layer is small, it is often termed a sorus, but where, as in the latter, the sporogenous layer is extensive, and spread out more or less sheet-like on the supporting tissues, it is more frequently termed a hymenium.

    34

    An adjacent layer inside the V is called the hilus.

    35

    An air-tube consists of an epithelium of large polygonal cells with a thin basement-membrane externally and y a chitinous layer internally, the lastnamed being continuous with the outer cuticle.

    36

    An annoying distraction from the main plot, or a welcome second layer?

    37

    An epidermis-like or cortical protective outer layer is very common, and is usually characterized by the close septation of the densely interwoven hyphae and the thickening and dark colour of their outer walls (sclerotia, Xylaria, &c.).

    38

    An oil exploration geologist thinks he will find oil below the shale layer shown below.

    39

    Another very curious property of this bird, which was observed by Jacquin, who brought it to the notice of Linnaeus, 2 is its emphysematous condition - there being a layer of air-cells between the skin and the muscles, so that on any part of the body being pressed a crackling sound is heard.

    40

    Around the cast the organic tissues may be represented by a carbonaceous layer, on the outer surface of which the external features, such as the remains of leaves, can sometimes be traced.

    41

    Around the whole tower was a pavement of inscribed baked bricks, resting on a layer of clay 2 ft.

    42

    As a result of this change of form the gastric cavity or coelenteron becomes of compressed lenticular form, and the endoderm lining it can be distinguished as an upper or exumbral layer and a lower or subumbral layer.

    43

    As AB moves from CD to EF it pushes forward the layer of air in contact with it.

    44

    As AB returns from EF towards CD the layer of air next to it follows it as if it D E F were pulled back by AB.

    45

    As the distillation proceeded one layer would diminish more rapidly than the other until only the latter would remain; this would then distil as a completely miscible mixture.

    46

    As the juice exudes, more petals are pressed on to them with a cloth until a layer of sufficient thickness is obtained.

    47

    As the process continued the salt-saturated layer, incapable of further effective filtration, grew in thickness downwards, until in the process of time it filled the whole mass of sandstone.

    48

    As well as the endothelium and underlying basement membrane, there is a small layer of loose connective tissue and some adipose tissue.

    49

    At Arcachon they are arranged in piles each layer being transverse to the one below, so that the space formed by the concavity of the tile is kept open.

    50

    At each step the difference of capillary pressure is only one-quarter of that due to the sudden transition from o to a-, and thus altogether half the effect is lost by the interposition of the layer.

    51

    At its posterior margin the peritoneum of the great sac is reflected on to the diaphragm to form the anterior layer of the coronary ligament.

    52

    At one point this is continuous with a layer of cells called the stratum granulosum which lines the outer wall of the follicle, but elsewhere the two layers are separated by fluid, the liquor folliculi.

    53

    At the Carnegie works Mr Monell gets the two dephosphorizing conditions, low temperature and basicity of slag, early in the process, by pouring his molten but relatively cool cast iron upon a layer of pre-heated lime and iron oxide on the bottom of the open-hearth furnace.

    54

    B, The lower layer forms a solid G,H, Formation of the medusae.

    55

    Bast mats are now made chiefly in Russia, the bark being cut in long strips, when the liber is easily separable from the corky superficial layer.

    56

    Below this is a circular, and below that again a longitudinal, layer of muscle fibres.

    57

    Beneath these is a springy layer of protein called an elastic lamina.

    58

    Beneath this again is a distinct peritoneum lining the coelom, which appears to be wanting as a special layer in some Polychaetes (Benham, Gilson).

    59

    Between ectoderm and endoderm is a supporting layer of structureless gelatinous substance termed mesogloea, secreted by the cell-layers of the body-wall; the mesogloea may be a very thin layer, or may reach a fair thickness, and then sometimes contains skeletal elements formed by cells which have migrated into it from the ectoderm.

    60

    Between the ectoderm and endoderm a gelatinous supporting layer, termed the mesogloea, makes its appearance.

    61

    Bitter aloes are made from the dried, purified sap obtained from the latex - the thin layer of tissue directly beneath the skin.

    62

    Both actions result in the drawing in of an intermediate layer of water from a distance which takes part in the double system of vertical circulation as is indicated in fig.

    63

    But there are examples of elaborate matrices composed of several pieces, from the impressions of which the seal was built up in an ingenious fashion, both obverse and reverse being carved in hollow work, through which figures and subjects impressed on an inner layer of wax are to be seen.

    64

    By experience with the class of coal used and the adjustment of the stops in the shoot, the charge can be run into the retort to form an even layer of any desired depth.

    65

    By means of a piece of stretched rubber tubing, this crucible is supported in the mouth of an ordinary funnel which is connected with an exhausting apparatus; and water holding in suspension fine scrapings of asbestos, purified by boiling with strong hydrochloric acid and washing with water, is run through it, so that the perforated bottom is covered with a layer of felted asbestos.

    66

    By the fusion of the hyphae in the middle of the mycelium a pseudo-parenchymatous cortical layer has begun to form.

    67

    Can you identify the endothelium, and underlying connective tissue of the tunica intima layer in this photograph?

    68

    Certain districts, indeed, in which a layer of heavy loam underlies the porous and friable surface, are able to retain the moisture which elsewhere is absorbed.

    69

    Constant hoeing or harrowing to maintain a natural soil mulch layer of 2 or 3 in.

    70

    Cover all of the cake in a thin layer of butter icing, this will help the icing to stay in place.

    71

    Cover the top with a thin layer of grated coconut.

    72

    Cyclic GMP causes the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessel walls.

    73

    Cyclic GMP causes the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessels in the penis to widen by relaxing a thin layer of muscle found in the blood vessel walls.

    74

    Dermis The deep layer of skin emollient An agent that soothes and softens the skin; also known as a moisturizer.

    75

    Distinctive layer of buried turf line and topsoil which is probably the surface visible to the 18th century antiquarians.

    76

    Dry collodion negatives, introduced later, were made by covering the collodion negatives, introduced later, were made by covering the collodion with a layer of albumen or gelatin.

    77

    During the test, an electric current is used to move the proteins across a thin layer of agarose gel.

    78

    Each favor consists of five sugared almonds wrapped in a layer of fabric or placed in a special box.

    79

    Each layer of rove increases the diameter of the material on the bobbin shank; hence, at the beginning of each layer, the speed of the bobbin must be increased, and kept at this increased speed for the whole traverse from top to bottom or vice versa.

    80

    Each layer of rubber is allowed to become firm before forming another; a practised hand can make 5 or 6 lb in an hour.

    81

    Each pack comes with 2 liners + 2 wing liners, both made from a 2 layer 100% cotton fleece construction.

    82

    Even at the level of letter identification, the layer model become clumsy.

    83

    Exciting the entrance, one comes across an area of huge boulders, covered in a rich layer of multi colored jeweled anemones.

    84

    Exoskeleton The outer cellular layer (ectoderm or " hypodermis ") of insects as of other Arthropods, secretes a chitinous cuticle which has to be periodically shed and renewed during the growth of the animal.

    85

    Figure (3) shows once more unstained coccoliths embedded in the kerogen layer.

    86

    Finally, the third layer, known as "the Peak," and reached by a cable tramway, is dotted over with private houses and bungalows, the summer health resort of those who can afford them; here a new residence for the governor was begun in 1900.

    87

    For example, an extremely thin layer of gallium arsenide can be sandwiched between two layers of aluminum gallium arsenide.

    88

    For example, poor thermal inertia could be due to a poorly packed frost layer.

    89

    For the layer, which he now assigns to the Mycenaean period, is the sixth stratum from below.

    90

    For this purpose the skin is tied by connecting fibres of white fibrillar tissue to the deep layer of the dermis along the lateral and lower edges of the palmar fascia and to the sheaths of the flexor tendons.

    91

    For this reason the altar, as representative of the universe, is built in five layers, representing earth, air and heaven, and the intermediate regions; and in the centre of the altar-site, below the first layer, on a circular gold plate (the sun), a small golden man (purusha) is laid down with his face looking upwards.

    92

    Fresh cork is formed each season by an active formative layer below the layer developed last season, which generally peels off.

    93

    From the primitive uniform Systems. mass of undifferentiated assimilating cells, which we may conceive of as the starting-point of differentiation, though such an undifferentiated body is only actually realized in the thallus of the lower Algae, there is, (1) on the one hand, a specialization of a surface layer regulating the immediate relations of the plant with its surroundings.

    94

    Further work For a given plant, compare thin layer chromatograms with paper chromatograms of the same pigments.

    95

    Generally it is either dried, after being separated from the wash water, by means of common salt, upon a layer of which the moist nitroglycerin is gently run and allowed to drain or filter through, or it is filtered through a mass of dry sponge or similar dry and porous material.

    96

    Generally towards the end of the first year the original thin protective layer of a stem or branch is replaced by a thin layer of "cork," that is a layer of cells the living contents of which have disappeared while the walls have become thickened and toughened as the result of the formation in them of a substance known as suberin.

    97

    Haynes has systematically and patiently uncovered the remains of the great temple of El-lil, removing layer after layer of debris and cutting sections in the ruins down to the virgin soil.

    98

    Hazel Corylus avellana and holly ilex aquifolium often form a distinct shrub layer.

    99

    He shows us a crystalline layer called surface hoar, the dusting of frozen dew you often see.

    100

    He then slices off the outer layer of the bark to the height of 4 or 5 ft.

    101

    Heteronemertini, in which the dermal musculature is in three layers, an external longitudinal, a middle circular, an internal longitudinal; the nervous system lies between the first and second of these layers; the outer layer of longitudinal muscles is a new development; there is no intestinal caecum; no stylets on the proboscis and the mouth is behind the level of the brain.

    102

    Histologically, the perisarc or test in the Graptoloidea appears to be composed of three layers, a middle layer of variable structure,.

    103

    If in its extension to contain the new formations within it the embryo-sac remains narrow, endosperm formation proceeds upon the lines of a cell-division, but in wide embryo-sacs the endosperm is first of all formed as a layer of naked cells around the wall of the sac, and only gradually acquires a pluricellular character, forming a tissue filling the sac. The function of the endosperm is primarily that of nourishing the embryo, and its basal position in the embryo-sac places it favourably for the absorption of food material entering the ovule.

    104

    If the cortical layer should exhibit positive reaction and the medulla of the same species a negative reaction with both reagents, the result is represented thus, K CaCI i.

    105

    If the density be a, the attraction between the whole of one side and a layer upon the other distant z from the plane and of thickness dz is 27r6 2 P(z)dz, reckoned per unit of area.

    106

    If the pot has holes, put crocks in the bottom and a layer of coarse peat.

    107

    If we take a thin layer of natural Canada balsam and heat it strongly for a little time most of the volatile oils are driven out of it.

    108

    In a few cases there is a special surface or epidermal layer, but usually all the outer layers of the stem are composed of brown, thick-walled, lignified, prosenchymatous, fibre-like cells forming a peripheral stereom (mechanical or supporting tissue) which forms the outer cortex.

    109

    In a normal joint the ends of the bones are covered by a layer of smooth, slippery gristle called cartilage.

    110

    In accordance with these more sedentary habits during the first phases of life, the characteristic pilidium larva, which is so eminently adapted for a pelagic existence, appears to have been reduced to a close-fitting exterior layer of cells, which is stripped off after the definite body-wall of the Nemertine has similarly originated out of four ingrowths from the primary epiblast.

    111

    In addition, sulfate aerosols have been linked to ozone layer depletion.

    112

    In all cases, therefore, where it is desired to do the work out of contact with the solid fuel, the operation of burning or heat-producing must be performed in a special fire-place or combustion chamber, the body of flame and heated gas being afterwards made to act upon the surface of the material exposed in a broad thin layer in the working bed or laboratory of the furnace by reverberation from the low vaulted roof covering the bed.

    113

    In areas where the drum is exposed to light, the organic photoconductor layer becomes conductive, flows the charges to the ground.

    114

    In autumn the enclosed seas of high latitudes frequently present a thermal stratification in which a warm middle layer is sandwiched between a cold upper layer and a cold mass below, the arrangement being termed mesothermic (thaos, middle).

    115

    In case of adhesive clayey subsoil this can generally be secured by placing over the sloping bottom a good layer of coarse rubbly material, communicating with a drain in front to carry off the water, while earthenware drain tubes may be laid beneath the rubble from 8 to To ft.

    116

    In certain species of Gnetum described by Karsten the megaspore contains a peripheral layer of protoplasm, in which scattered nuclei represent the female reproductive cells; in Gnetum Gnemon a similar state of things exists in the upper half of the megaspore, while the lower half agrees with the megaspore of Welwitschia in being full of prothallus-tissue, which serves merely as a reservoir of food.

    117

    In common with all other Coelomata, the Mollusca have the mouth and first part of the alimentary canal which leads into the met-enteron formed by a special invagination of the outer layer of the primitive body-wall, not to be confounded with that which often, but not always, accompanies the antecedent formation of the archenteron; this invagination is termed the stomodaeum.

    118

    In each a differentiation takes place in the layers beneath the epidermis, by which an outer layer of small-celled tissue surrounds an inner portion of large cells.

    119

    In each bundle, separating the xylem and phloem, is a layer of meristem or active formative tissue, known as cambium; by the formation of a layer of cambium between the bundles (interfascicular cambium) a complete ring is formed, and a regular periodical increase in thickness results from it by the development of xylem on the inside and phloem on the outside.

    120

    In fact the uniformity of brass and bell-metal is only superficial; if we adopt the methods described in the article Metallography, and if, after polishing a plane face on a bit of gun-metal, we etch away the surface layer and examine the new surface with a lens or a microscope, we find a complex pattern of at least two materials.

    121

    In general, each shoot makes one layer, but in plants like the Wistaria or Clematis, which make long shoots, what is called serpentine layering may be adopted; that is, the shoot is taken alternately below and above the surface, as frequently as its length permits.

    122

    In Gnetum Gnemon, as described by Lotsy, a mature embryo-sac contains in the upper part a large central vacuole and a peripheral layer of protoplasm, including several nuclei, which take the place of the archegonia of Ephedra; the lower part of the embryo-sac, separated from the upper by a constriction, is full of parenchyma.

    123

    In man, both size and complexity contribute to the increased area of the cortex or outer layer of the brain, which has been fully ascertained to be the seat of the mysterious processes by which sensation furnishes the groundwork of thought.

    124

    In mining, a "gouge" is the layer of soft rock or earth sometimes found in each side of a vein of coal or ore, which the miner can scoop out with his pick, and thus attack the vein more easily from the side.

    125

    In nearly all plants which produce secondary vascular tissues by means of a cambium there is another layer of secondary meristem arising externally to, but in quite the same fashion as, Ph II

    126

    In order that the current should be maintained, and the electromotive force of the cell remain constant during action, it is necessary to ensure that the changes in the cell, chemical or other, which produce the current, should neither destroy the difference between the electrodes, nor coat either electrode with a non-conducting layer through which the current cannot pass.

    127

    In order that this finely divided slag shall rise to the surface and there coalesce with the overlying layer, the metal must be tranquil.

    128

    In order to obtain the cultivated bark as economically as possible, experiments were made which resulted in the discovery that, if the bark were removed from the trunks in alternate strips so as not to injure the cambium, or actively growing zone, a new layer of bark was formed in one year which was richer in quinine than the original bark and equal in thickness to that of two or three years' ordinary growth.

    129

    In other cases the strands undergo differentiation into an outer layer with blackened, hardened cell-walls and a core of ordinary hyphae, and are then termed rhizomorphs (Armillaria mellea), capable not only of extending the fungus in the soil, like roots, but also of lying dormant, protected by the outer casing.

    130

    In Polia the connective tissue enclosed in the external muscular layer is eminently vacuolar - all the intermediate stages between such cells in which the vacuole predominates and the nucleus is peripheral and those in which the granular protoplasm still entirely fills them being moreover present.

    131

    In relation to its characteristic function of protection, the epidermis, which, as above defined, consists of a single layer of cells has typically thickened and cuticularized outer walls.

    132

    In some cases both the nucleus and the chromatophores may be carried along in the rotating stream, but in others, such as T.Titeila, the chloroplasts may remain motionless iii a non-motile layer of the cytoplasm in direct contact with the cell wall.i Desmids, Diatoms and Oscillaria show creeping movements probably due to the secretion of slime by the cells; the swarmspores and plasmodium of the Myxomycetes exhibit amoehoid movements; and the motile spores of Fungi and Algae, the spermatozoids of mosses, ferns, &c., move by means of delicate prolongations, cilia or flagella cf the protoplast.

    133

    In some cases the inner layer is formed not by invagination but by proliferation or by de lamination.

    134

    In some of the layers add a layer of fresh basil.

    135

    In some parts of Mexico and Central America this separation is still effected by running the sugar into conical moulds, and placing on the top a layer of moist clay or earth which has been kneaded in a mill into a stiff paste.

    136

    In such cases as Lemanea, the terminal cells of the lateral branches form a superficial layer which has all the appearance of a parenchyma when viewed from the surface.

    137

    In the aquatic genera the epidermis comes to consist entirely of glandular cells, which are, however, arranged in a single layer.

    138

    In the Cyanophyceae the contents of the cell are differentiated into a central colorless region, and a peripheral layer containing the chlorophyll and other coloring matters together with granules of a reserve substance called cyanophycin.

    139

    In the earlier stages of approximation the obstacle thus arising may not be important; but when the thickness of the layer of air is reduced to the point at which the colours of thin plates are visible, the approximation must be sensibly resisted by the viscosity of the air which still remains to be got rid of.

    140

    In the encrusting type, which is found in a large proportion of the genera, the zooids are usually in a single layer, with their orifices facing away from the substratum; but in certain species the colony becomes multilaminar by the continued superposition of new zooids over the free surfaces of the older ones, whose orifices they naturally occlude.

    141

    In the last case it becomes coated with a greyish-black layer of an oxide (dioxide (?)), at a red heat the layer consists of the trioxide (B1203), and is yellow or green in the case of pure bismuth, and violet or blue if impure; at a bright red heat it burns with a bluish flame to the trioxide.

    142

    In the last-named genus the peridium is double and the outer layer becomes ruptured and spreads out in the form of star-shaped pieces; the inner layer, however, merely opens at the apex by a small pore.

    143

    In the middle of the vessel the superficial layer recovers its strength by diffusion from below, but the film adhering to the side of the glass becomes more watery, and therefore has a higher surface-tension than the surface of the stronger wine.

    144

    In the neck of the proboscis the fibrous layer is greatly thickened, and other intensifications of this layer occur in the dorsal and ventral middle lines of the trunk extending to the posterior end of the body.

    145

    In the operation of ploughing the furrow slice is separated from the soil below, and although in humid soils this layer may be left to settle by degrees, in semi-arid regions this loosened layer becomes.

    146

    In the Phylactolaemata the outermost layer of the bodywall is a flexible, uncalcified cuticle or "ectocyst," beneath which follow in succession the ectoderm, the muscular layers and the coelomic epithelium.

    147

    In the remaining Metazoa certain cells are budded off at an early stage of development from one or both of the two original layers, to form later a third layer, the mesoderm, which lies between the ectoderm and endoderm; such forms have therefore received the name Triploblastica.

    148

    In the winter it covers the orifice of this burrow with a layer of silk, and lies dormant underground until the return of spring.

    149

    In this manner poor peats and sands may be covered with a large layer of rock soil capable of growing excellent crops.

    150

    In TLC the sample to be analyzed is spotted onto the bottom of a plate coated with a thin layer of silica gel.

    151

    In tonguing the leaves are cut off the portion which has to be brought under ground, and a tongue or slit is then cut from below upwards close beyond a joint, of such length that, when the cut part of the layer is pegged an inch or two (or in larger woody subjects 3 or 4 in.) below the surface, the elevation of the point of the shoot to an upright position may open the incision, and thus set it free, so that it may be surrounded by earth to induce it to form roots.

    152

    Inclined, , 584 Horizontal „ 570 Of the existing forms of vertical retort it remains a matter to be decided whether the coal should be charged in bulk to the retort or whether it should be introduced in small quantities at regular and short intervals; by this latter means (the characteristic feature of the Settle-Padfield process) a continuous layer of coal is in process of carbcnization on the top, whilst the gas escapes without contact with the mass of red-hot coke, a considerable increase in volume and value in the gas and a much denser coke being the result.

    153

    Increase in size appears sometimes to be accompanied by the development of a new layer of fibres, whereas a difference in the method of preparation may give to a layer which appeared homogeneous in one specimen a decidedly fibrous aspect in another.

    154

    Inscriptions and coins show that its civilization consisted of a layer of Roman ideas and customs superimposed on Celtic tribal characteristics.

    155

    Inside the syncytium is a not very regular layer of circular muscle fibres, and within this again some rather scattered longitudinal fibres; there is no endothelium.

    156

    Instead of dirt, the floors were made of hardwood so rich that the layer of dust couldn't hide its beauty.

    157

    Instead of the axe or large knives which frequently inflicted serious damage to the trees, special small knives and prickers are now employed so constructed as to avoid injury to the tree through making a larger incision than is necessary, and without penetrating into the wood below the laticiferous layer.

    158

    Instead, the EPA is expected to cover part of the deposit with a layer of sand dredged from the nearby harbor.

    159

    Into these fins, which are largely cuticular and strengthened by radiating bars, a single layer of ectoderm cells projects.

    160

    It begins at a maximum speed when the bobbin is empty, is constant for each layer, but decreases as the bobbin fills.

    161

    It consists of a single layer of cells, continuous with those which secrete the general chitinous covering of the prosoma.

    162

    It consists of a vertical column divided into a number of sections by horizontal plates, which are perforated so that the ascending vapours have to traverse a layer of liquid.

    163

    It has a terry outer with a 2 layer terry booster sewn in.

    164

    It includes chalky limestones, siliceous earths, red clay, and, at the top, a layer of mudstone composed mainly of volcanic dust.

    165

    It is covered with a layer of thin, dry soil, through the slow weathering of the coral rocks.

    166

    It is formed, not from fused spicules, but as a secretion of a special layer of cells derived from the basal ectoderm, and known as calicoblasts.

    167

    It is found that in embryological growth the retinal layer of the central eyes forms as a separate pouch, which is pushed in laterally beneath the corneagen layer from the epidermic cell layer.

    168

    It is further noticeable that in Rhynchelmis the covering of vesicular cells which clothes the drainpipe cells of the adult nephridium is cut off from the nephridial cells themselves and is not a peritoneal layer surrounding the nephridium.

    169

    It is in large part because of this shallowness, which contrasts so strongly with the height and roominess of the Bessemer converter, that the process lasts hours where the Bessemer process lasts minutes, though there is the further difference that in the open-hearth process the transfer of heat from flame to charge through the intervening layer of slag is necessarily slow, whereas in the Bessemer process the heat, generated as it is in and by the metallic bath itself, raises the temperature very rapidly.

    170

    It is rapidly acted on by water, especially if means are taken to remove the layer of calcium hydrate formed on the metal; alcohol acts very slowly.

    171

    It is represented at the bottom of the lake by a layer of charcoal mixed with implements of stone and bone and other relics highly carbonized.

    172

    It is sometimes differentiated into a clearer outer layer, of hyaloplasm, commonly called the ectoplasm, and an inner granular endoplasm.

    173

    It leads into a straight alimentary canal whose walls consist of a layer of ciliated cells ensheathed in a thin layer of peritoneal cells.

    174

    It makes room for the next layer of air to move back and to be extended and so on, and an extension of the air is.

    175

    It may be obtained by extracting powdered gall-nuts with a mixture of ether and alcohol, whereupon the tannin is taken up in the lower layer, which on separation and evaporation yields the acid.

    176

    It may be safely said of all those living things which are large enough to enable us to trust the evidence of microscopes, that they are heterogeneous optically, and that their different parts, and especially the surface layer, as Life and contrasted with the interior, differh sicall and organiza- P Y ?

    177

    It must, of course, be understood that the germinal epithelium covering the ridge, and the mesenchyme inside it, are both derived from the mesoderm or middle layer of the embryo.

    178

    It then often retains its vitality for a long time, apparently crawling as if it were itself a worm, a phenomenon which is at least partially explained by the extraordinary development of nervous tissue, equally distributed all through the walls of the proboscis, and either united into numerous longitudinal nerve-stems (Drepanophorus, Amphiporus) or spread out into a uniform and comparatively thick layer (Cerebratulus, sp.).

    179

    It was worked for about a hundred years in only its upper bed, but in 1781, after traversing a layer of indurated clay intersected with small veins of salt 102 yds.

    180

    It was, however, found that the behaviour of this alloy was in part due to a layer of pure iron (" ferrite ") averaging o 1 mm.

    181

    It works in conjunction with the disk and scroll, the cones, or the expanding pulley, to impart an intermittingly variable speed to the bobbin (each layer of the bobbin has its own particular speed which is constant for the full traverse, but each change of direction of the builder is accompanied by a quick change of speed to the bobbin).

    182

    It's the ultimate summer indulgence the creamiest ice cream coated in a thick, crispy, cold, chocolate layer.

    183

    Its fruits resemble dangling pink lanterns, with four seeds inside that are covered with an orange fleshy layer called an aril.

    184

    Its function in the hairless Cetacea is discharged by the specially modified and thickened layer of fatty tissue beneath the skin known as " blubber."

    185

    Its most usual seat of origin in the stem is the external layer of the cortex immediately below the epidermis; in the root, the pericycle.

    186

    Its width is as a rule about 24 ft.; at present its surface is formed of rough cobbling, upon which there was probably a gravel layer, now washed away.

    187

    Layer after layer has been stripped from their sides, and the flat or rounded top has been narrowed until it has now become the apex of a cone.

    188

    Layer onto some of the card circles from the paper caddy, being sure to ink the edges of the card circles first.

    189

    Layer the set jelly, whipped cream and fresh currants in 4 glasses and serve.

    190

    Layer the tops of chrysanthemums, to obtain dwarf flowering plants.

    191

    Layer upon layer of clay is deposited by the sea in front of the dikes, until new fringe has been added to the coast-line on which sea grasses begin to grow.

    192

    Leaves collected in the autumn and stored in pits or heaps, and covered with a layer of soil, make beautiful leaf-mould at the end of about twelve months, if frequently drenched with water or rain during this period.

    193

    Leighton Andrews's curious article tried to smother the campaign with a layer of induced boredom.

    194

    Made of a brushed waterproof knit polyester laminated with a waterproof layer inside.

    195

    Making NTFS essentially a device driver layer add-on drives Windows compatibility into a whole new ballpark.

    196

    Meanwhile differences in consistency appear in various strata, and a dense outer protective layer (peridium), soft gelatinous layers, and so on are formed, the whole eventually attaining great complexity - e.g.

    197

    Metallic cobalt may be obtained by reduction of the oxide or chloride in a current of hydrogen at a red heat, or by heating the oxalate, under a layer of powdered glass.

    198

    Metallic sodium possesses a silvery lustre, but on exposure to moist air the surface is rapidly dulled by a layer of the hydroxide.

    199

    Mogilev is built up of Devonian deposits in the north, of Cretaceous in the east, and of Tertiary elsewhere, but generally is covered with a thick layer of Glacial and later alluvial deposits.

    200

    Montgomery has also described certain spaces which may be coelomic lying between the alimentary canal and the inner longitudinal layer of muscles in the Heteronemertini.

    201

    More usually, by an infolding of the layer of cells in development, we get three layers under the lens; the front layer is the corneagen layer, and is separated by a membrane from the other two which, more or less, fuse and contain the nerve-end-cells (retinal layer).

    202

    Much more complicated are the processes in a large series of "fructifications," where the mycelium first develops a densely packed mass of hyphae, all alike, in which labyrinths of cavities subsequently form by separation of hyphae in the previously homogeneous mass, and the hymenium covers the walls of these cavities and passages as with a lining layer.

    203

    New tangential walls arise in the cells which are the seat of cambial activity, and an initial layer of cells is established which cuts off tissue mother-cells on the inside and outside, alternately contributing to the xylem and to the phloem.

    204

    No doubt can be entertained that the greater part of the inner layer corresponds to the mesoderm of more ordinary embryos, for the coelomic pouches, the germ-cells, the musculature and the vascular system all arise from it.

    205

    Note on the surface of the heart there is a thin layer of fibrinous exudate.

    206

    Numerous rhabdomeres (grouped as rhabdoms in Limulus) are found in the retinal layer of the central eyes also.

    207

    Of course the phenomenon might be due to actual change in the arc, but it is at least consistent with the view that arcs are of two kinds, one form constituting a layer of no great vertical depth but considerable real horizontal width, the other form having little horizontal width but considerable vertical depth, and resembling to some extent an auroral curtain.

    208

    Of Phanerogams, only the Dryas octopetala covers small areas of the debris, interspersed with isolated Cochlearia, &c., and, where a layer of thinner clay has been deposited in sheltered places, the surface is covered with saxifrages, &c.; and a carpet of mosses allows the arctic willow (Salix polaris) to develop. Where a thin sheet of humus, fertilized by lemmings, has accumulated, a few flowering plants appear, but even so their brilliant flowers spring direct from the soil, concealing the developed leaflets, while their horizontally spread roots grow out of proportion; only the Salix lanata rises to 7 or 8 in., sending out roots I in.

    209

    On electrolysis a layer of metallic calcium is formed at the lower end of this rod on the surface of the electrolyte; the rod is gradually raised, the thickness of the layer increases, and ultimately a rod of metallic calcium, forming, as it were, a continuation of the iron cathode, is obtained.

    210

    On examining more minutely the course of the development, it is found that the ovum goes through the usual process of cleavage, always total and regular in this group, and so gives rise to a hollow sphere or ovoid with the wall composed of a single layer of cells, and containing a spacious cavity, the blastocoele or segmentation-cavity.

    211

    On some occasions, owing to the sudden melting of a surface layer of ice and snow, a large quantity of cold water, percolating rapidly, gave for a short time values of the diffusivity as high as.

    212

    On standing, some latices separate, more or less readily, into an upper layer resembling cream and consisting of the globules, and a lower watery layer.

    213

    On standing, the distillate separates into two layers, an aqueous and an oily layer, the oil floating on or sinking through the water according to its specific gravity.

    214

    On the inner surface is a layer of peritoneal epithelium, which is frequently ciliated, and at the bases of the retractor muscles is heaped up and modified into the reproductive organs.

    215

    On the maturation of the oospheres the outer layer of the oogonial wall ruptures, and the oospheres, still surrounded by a middle and inner layer, pass out through the mouth of the conceptacle.

    216

    On the other hand, the thick layer of fallen leaves on the ground, and the bulk of the stems of the forest trees are bluish brown and russet, thus closely resembling the decaying leaves in an European forest after heavy rain; while the whole effect is precisely similar to that produced by the russet head and body and the striped thighs and limbs of the okapi.

    217

    On the outside of the shell is a non-calcified layer of conchiolin called the periostracum, secreted by the thickened edge of the mantle.

    218

    On the uppermost terrace, defined by the great Cyclopean supporting wall, exactly as described by Pausanias, the excavations revealed a layer of ashes and charred wood, below which were found numerous objects of earliest date, together with some remains of the walls resting on a polygonal platform - all forming part of the earliest temple.

    219

    On this ground Maxwell inferred that the forces acting in the radiometer are connected with gliding of the gas along the unequally heated boundaries; and as the laws of this slipping, as well as the constitution of the adjacent layer, are uncertain, the problem becomes very intricate.

    220

    On this should be laid at least a foot thick of coarse, hard, rubbly material, a layer of rough turf, grass side downwards, being spread over it to prevent the compost from working down.

    221

    Outer layer is a silk chiffon, lining is a fine silk satin.

    222

    Outermost layer of root-cap. c. Wall marking the inner limit of the outer cortex.

    223

    Over all there was laid a layer of earth, a floor of logs or a pavement of flagstones.

    224

    Over the whole state there is a layer of drift deposited by the glaciers which once covered this region.

    225

    Place more avocado on top of the crab and finish with another layer of tomatoes, compressing the layers as you go.

    226

    Place the cooked cauliflower in a layer on top of the lentils.

    227

    Posteriorly beneath the posterior adductors, and covered only by a thin layer of elongated epidermal cells, are the visceral ganglia.

    228

    Put a layer of grated cheese sprinkled on top.

    229

    Recycled asphalt was recycled on site for the capping layer.

    230

    Rotating zinc cathodes were used, with scrapers to prevent the accumulation of a layer of insoluble magnesium compounds, which would otherwise increase the electrical resistance beyond reasonable limits.

    231

    Run off the lower layer of 1-bromobutane and add some granular anhydrous calcium chloride.

    232

    Scattered single stereids or bundles of fibres are no imnrornmnn in the rnrtev of the root The innermost layer of the cortex, abutting on the central cylinder of the stem or on the bundles of the leaves, is called the jthloeoterma, and is often differentiated.

    233

    Several distinct, detached haze layers can be seen above the opaque haze layers can be seen above the opaque haze layer.

    234

    She did not know and would not have believed it, but beneath the layer of slime that covered her soul and seemed to her impenetrable, delicate young shoots of grass were already sprouting, which taking root would so cover with their living verdure the grief that weighed her down that it would soon no longer be seen or noticed.

    235

    Slough The term for the viscous yellow layer which often covers the wound and is strongly adherent to it.

    236

    Slowly the facts were beginning to seep through the layer of shock.

    237

    So indispensable did it The charta Claudia was made from a composition of the first and second qualities, the Augusta and the Livia, a layer of the former being backed with one of the latter; and the sheet was increased to nearly a foot in width.

    238

    Sometimes development stops altogether, and a layer of undifferentiated parenchyma (the mesodesm) is left between them; or it may continue indefinitely, the central cells keeping pace by their tangential division with the differentiation of tissue on each side.

    239

    Sometimes the purpose of a gas-producer is attained in a very simple manner by lowering the grate of an ordinary fireplace so much that a layer of coal 4 or 5 ft.

    240

    Specimens on the bark of trees require pressure until the bark is dry, lest they become curled; and those growing on sand or friable soil, such as Coniocybefurfuracea, should be laid carefully on a layer of gum in the box in which they are intended to be kept.

    241

    Stomata are often absent, absorption and excretion of gases in solution being carried on through the epidermal layer.

    242

    Subsequently he ruled gratings on a layer of gold-leaf attached to glass, or on a layer of grease similarly supported, and again by attacking the glass itself with a diamond point.

    243

    Such ritual use of oil as a o payls or seal may have been suggested in old religions by the practice of keeping wine fresh in jars and amphorae by pouring on a top layer of oil; for the spoiling of wine was attributed to the action of demons of corruption, against whom many ancient formulae of aversion or exorcism still exist.

    244

    Suppose that the transition from o to s is made in two equal steps, the thickness of the intermediate layer of density la being large compared to the range of the molecular forces, but small in comparison with the radius of curvature.

    245

    Surrounding the pitted wall of the ovum there is a definite layer of large cells, no doubt representing a tapetum, which, as in cycads and conifers, plays an important part in nourishing the growing egg-cell.

    246

    Swap the impure positive copper anode with a pure block of the metal you want to form the coating layer.

    247

    Team hasn't reached antoine cesar becquerel layer of uranium.

    248

    Techniques For Plastics Current methods for detecting residual stress in plastic moldings include birefringence, layer removal, hole drilling and chemical probe techniques.

    249

    Ten volumes of the purest coal-tar benzene were shaken for four hours with one volume of sulphuric acid, the acid layer was removed and neutralized with lead carbonate, and the lead thiophen sulphonate obtained was distilled with an equivalent quantity of ammonium chloride.

    250

    That layer C A E presses against and pushes forward the next layer and so on.

    251

    The acid process goes on much faster, because in it the heat insulating layer of slag is much thinner.

    252

    The advantages compared with a tangent sight are that only half the movement is required to raise the sight for any particular range; the ranges on the drum are easier to read, and if necessary can be set by another man, so that the layer need not take his eye from the telescope.

    253

    The air entrained by the fire plume from the lower layer into the upper layer is taken into account.

    254

    The air gap creates a thermal insulator with the third layer enabling all the moisture to escape at its own rate.

    255

    The alkaline gland is an irregular tube with a single cellular layer, its duct opening alongside that of the acid reservoir.

    256

    The amount of this increase and diminution is too small to be directly measured, though it has a certain theoretical importance in the explanation of the equilibrium of the superficial layer of the liquid where it is inclined to the horizon.

    257

    The apothecia, though of the normal fungal type and usually disk-shaped, are somewhat more variable, and since the Morphologie and Biologie der Pilze, Mycetozoen und 1 The thalline margin (margo thallinus) is the projecting edge of a special layer of thallus, the amphithecium, round the actual apothecium; the proper margin (margo proprius) is the projecting edge of the apothecium itself.

    258

    The archegonia are separated from one another, as in Pinus, by some of the prothallus-tissue, and the cells next the egg-cells (tapetal layer) contribute food-material to their development.

    259

    The arrangement is perhaps derivable from a Cribrilina-like condition in which the outer layer of the spines has become membranous while the spines themselves are laterally united from the first.

    260

    The arrangement of the conducting tissue in the stem is characteristic; a transverse section of the very young stem shows a nunber of distinct conducting strands - vascular bundles - arranged in a ring round the pith; these soon become united to form a closed ring of bast and wood, separated by a layer of formative tissue (cambium).

    261

    The Atlanta night was muggy and dark; a thin layer of smog trapped the city's light and made the sky glow an eerie yellow-orange.

    262

    The basic constituents are removed by dilute sulphuric acid, the acid layer removed, and the bases liberated by alkali, separated, dried, and fractionally distilled.

    263

    The binding energy of a second layer of adsorbate molecules is similar to the latent heat of sublimation or vaporization of the adsorbate molecules is similar to the latent heat of sublimation or vaporization of the adsorbate.

    264

    The blue colouring substance is ferrous sulphide, the upper reddish layer contains more ferric oxide, which the predominance of decomposing organic matter in the substance of the mud reduces to ferrous oxide and subsequently by further action to sulphide.

    265

    The body is not metamerically segmented and is composed of a muscular tunic covered externally by a more or less modified cellular layer.

    266

    The boghead of Scotland, Autun and New South Wales is regarded by Renault and Bertrand as mainly composed of gelatinous Algae (Piles and Reinschia), having a hollow, saccate thallus formed of a single layer of cells.

    267

    The bottom crock is made from a piece of a broken garden pot, and is laid with the convex side upwards; then comes a layer of irregular pieces of crock of various sizes, about i in.

    268

    The brown testa contains, in the outer of the four coats into which it is microscopically distinguishable, an abundant secretion of mucilaginous matter; and it has within it a thin layer of albumen, enclosing a pair of large oily cotyledons.

    269

    The business was continued by his sons Georg (1804-1884) it as layer of cubical cells, which are continuous near the anterior border with the cells of the peritoneum.

    270

    The central cylinder of the root, in which there are several xylem and phloem strands, has around it a two-layered endodermis, the inner layer of which appears to take the place of a pericycle.

    271

    The central layer is usually thick and marked by lines of growth; but in Glossograptus and Lasiograptus it is thinned down to a fine membrane stretched upon a skeleton framework of lists and fibres,.

    272

    The central mass soon becomes differentiated into an outer epidermal and a dermal layer of flat-cells.

    273

    The chief peculiarities that distinguish Trematodes from their free-living allies, the Turbellaria, are the development of adhering organs for attachment to the tissues of the host; the replacement of the primitively ciliated epidermis by a thick cuticular layer and deeply sunk cells to ensure protection against the solvent action of the host; and (in one large order) a prolonged and peculiar life-history.

    274

    The chitinous layer is usually strengthened by thread like thickenings which, in the region close to the outer opening of the tube, form a network enclosing polygonal areas, but which, through most of the tracheal system, are arranged spirally, the strengthening thread not forming a continuous spiral, but being interrupted after a few turns around the tube.

    275

    The Coelentera, as contrasted with other Metazoa (but not Parazoa), consist of two layers of cells only, an outer layer or ectoderm, an inner layer or endoderm.

    276

    The colour of these two varieties is due to a layer of oxide.

    277

    The composition of the vapour, however, would not be the same as that of either layer.

    278

    The contents of O and Mg were lowest in the thick rodless enamel of the surface layer, and highest in the deep layer.

    279

    The continuous layer of cells from which the nervous system is developed undergoes a segmentation analogous with that we have described as occurring in the ventral plate; there is thus formed a pair of contiguous ganglia for each segment of the body, but there is no ganglion for the telson.

    280

    The cortical layer is usually more developed on the side towards the light, while in many lichens this is the only side provided with a cortical layer.

    281

    The cuticle is a thin layer, of which the spines, jaws and claws are special developments.

    282

    The cylinder is surrounded by a mantle of one or more layers of parenchymatous cells, the pericycle, and the xylem is generally separated from the phloem in the stem by a similar layer, the mesocycle (corresponding with the amylom sheath in mosses).

    283

    The dark product obtained is washed with water, hydrochloric acid and hydrofluoric acid, and finally calcined again with the oxide or with borax, being protected from air during the operation by a layer of charcoal.

    284

    The data given above refer to the mean reversing layer.

    285

    The development of periderm was a constant feature, and this tissue attained a great thickness, consisting chiefly of a phelloderm, produced on the inner side of the formative layer, and no doubt subserving a mechanical function.

    286

    The distillate obtained was diluted with one hundred volumes of ligroin (previously purified by shaking with fuming sulphuric acid) and then shaken for one or two hours with sulphuric acid (using ten volumes of acid to one volume of the distillate), the acid layer diluted with water, neutralized by lead carbonate and the lead salt again distilled with an equivalent quantity of ammonium chloride.

    287

    The distributions are similar in nature to those seen from the low-latitude boundary layer and cusp on the dayside.

    288

    The drying oils absorb oxygen somewhat rapidly and dry to a film or skin, especially if exposed in a thin layer.

    289

    The eastern elevation is a ridge or cuesta formed by an outcropping hard layer of the ancient coastal plain; and it separates the Wisconsin river basin from the Fox River Valley and the streams flowing into Lake Michigan.

    290

    The eggs in this sheet are in a single layer, each in its own little cavity.

    291

    The embryo undergoes differentiation into an outer layer of cells that produce a chitinoid coat, a middle layer of cells, and a central spherical hexacanth body closely enveloped by the middle coat.

    292

    The epidermis in the stair and the surface layer of the root soon becomes differentiated froit the underlying tissue.

    293

    The existence of a layer of water of low salinity at a depth of 500 fathoms in the tropical oceans of the southern hemisphere is to be referred to this action of the melting ice of the Antarctic regions.

    294

    The external layer, or ectoderm, is made up of cells, and contains also muscular and ner vous elements.

    295

    The fact that they were formed from salvage material from a portable airship hangar adds another layer of interest.

    296

    The fall is directly caused by the formation of a layer of tissue across the base of the leaf-stalk; the cells of this layer separate from one another and the leaf remains attached only by the fibres of the veins until it becomes finally detached by the wind or frost.

    297

    The fat is then drawn off the aqueous (gluey) layer, and strained through sieves or filters.

    298

    The first three orders, which have a double muscular layer, external circular and internal longitudinal, are sometimes grouped together as the Dimyaria; the Heteronemertini, in which a third coat of longitudinal muscles arises outside the circular layer, are then placed in a second branch, the Trimyaria.

    299

    The flow of heat may still be linear if the horizontal layers of the soil are of uniform composition, but the quantity flowing through each layer is no longer the same.

    300

    The free layer is now being swept in a hard axis, and shows reduced hysteresis, and a more linear response.

    301

    The fungus-mycelium will go on growing indefinitely in the cambium layer, thus killing and destroying a larger area year by year.

    302

    The furnace consisted of a flat, rectangular, firebrick box, packed with a layer of finely-powdered charcoal 2 in.

    303

    The gleba is usually differentiated into a number of chambers which are lined directly by the hymenium (basidial layer), or else the chambers contain an interwoven mass of hyphae, the branches of which bear the basidia.

    304

    The goal is to protect the ozone layer by taking precautionary measures to control global emissions of substances.

    305

    The gypsum underlay has survived well and still bears clear imprints of the lowest layer of blocks.

    306

    The Heroult cell consists of a square iron or steel box lined with carbon rammed and baked into a solid mass; at the bottom is a cast-iron plate connected with the negative pole of the dynamo, but the actual working cathode is undoubtedly the layer of already reduced and molten metal that lies in the bath.

    307

    The Heteronemertini thus appear to have developed an extra layer of longitudinal fibres internally to those which they inherited from more primitive ancestors, whereas the Metanemertini are no longer in possession of the internal circular layer, but have on the contrary largely developed the external circular one, which has dwindled away in the Heteronemertini.

    308

    The hi-tech paving slabs have a top layer containing titanium dioxide which helps to break down pollutant nitrogen dioxide gas from car fumes.

    309

    The inner layer of the cortex (phloeoterma) may form a well-marked endodermis, or differ in other ways from the rest of the cortex.

    310

    The inner layer of the polypide-bud gives rise to the structures usually regarded as ectodermic and endodermic, the outer layer to the mesodermic organs.

    311

    The inner layer or endoderm is also a cellular layer, and is chiefly made up of columnar cells, each bearing a cilium at its free extremity and terminating internally in a long muscular fibre.

    312

    The intermediate layer of the salt solution, floating over the caustic soda solution, plays the part of a diaphragm, by preventing the chlorine evolved in the bell from acting on the sodium hydrate formed outside, and this solution offers much less resistance to the electric current than the ordinary diaphragms. This process therefore consumes less power than most others.

    313

    The invaginated layer is the enteric cell-layer or endoderm; the outer cell-layer is the dermic cell-layer or ectoderm.

    314

    The large demand for copper to be used in sheathing ships ceased on the introduction of iron in shipbuilding because of the difficulty of coating iron with an impervious layer of copper; but the consumption in the manufacture of electric apparatus and for electric conductors has far more than compensated.

    315

    The largest class are the unilocular, or simple, external galls, divided by Lacaze-Duthiers into those with and those without a superficial protective layer or rind, and composed of hard, or spongy, or cellular tissue.

    316

    The latter discolours the sand and so one finds, round the coast and towards the upper margin of the zone between highand low-water marks, an under layer of black sand formed in this way.

    317

    The layer has under his control the hand-wheel for setting the range on the sights, another hand-wheel for elevating the gun and the sights on to the Detachable target, and a third for traversing the turret.

    318

    The layer of cork thus formed cuts out the dead debris and serves to, protect the uninjured cells below.

    319

    The leaves of most mosses are flat plates, each consisting of a single layer of square or oblong assimilating (chlorophyllous) cells.

    320

    The leaves quickly fell to the ground, forming a thick layer everywhere.

    321

    The less permeable materials should be confined to the inner parts of the embankments; this is especially important in the case of the inner embankment in order that, when the water level falls, they may remain moist without becoming liable to slip. The inner slope should be protected from the action of waves by so-called " hand-pitching," consisting of roughlysquared stonework, bedded upon a layer of broken stone to prevent local disturbance of the embankment by action of the water between the joints of the larger stones.

    322

    The low conductivity of char will cause a steep thermal gradient across the char layer.

    323

    The lowest layer contains ammonites from the topmost zone of the Middle Lias.

    324

    The lowest layer of the molten mass is principally metallic bismuth, the succeeding layers are a bismuth copper matte, which is subsequently worked up, and a slag.

    325

    The luminous organs of these beetles consist of a specialized part of the fat-body, with an inner opaque and an outer transparent layer.

    326

    The majority of the lichens, however, possess a stratified thallus in which the gonidia are found as a definite layer or layers embedded in a pseudoparenchymatous mass of fungal hyphae, i.e.

    327

    The mass, with the enamel attached, is dipped into the crucible and covered with a layer of transparent glass; the whole mass is then pulled out into tube.

    328

    The mature sporangium had a wall of a single layer of cells, which were larger towards the base, where they continued into the epidermis of the sporangiophore.

    329

    The mesodermic portion becomes charged with a yolk-like material (y), and, on the germination of the statoblast, gives rise to the outer layer (mes) of the bud.

    330

    The metal is quite permanent in dry air, but in moist air it becomes coated with a superficial layer of the oxide; it burns on heating to redness, forming a brown coloured oxide; and is readily soluble in mineral acids with formation of the corresponding salts.

    331

    The method consists in comparing the intensity after transmission through a layer of known thickness of the absorbent with the intensity of light from the same source which has not passed through the medium, k being thus obtained for various thicknesses and found to be constant.

    332

    The microphonic portion of the transmitter is contained in a thin cylindrical box or case of brass A, the inner curved surface of which is covered with an insulating layer of paper.

    333

    The middle layer called the choroid can be seen injected black with Indian ink.

    334

    The middle layer is likely to be the merged grains consumed by the intergranular corrosion.

    335

    The middle layer or mesogloea is not originally a cellular layer, but a gelatinoid structureless substance, secreted by the two cellular layers.

    336

    The mining of each floor is carried on in sections with small working-places which are first driven of moderate height to their full length and width, leaving a back of ore above and pillars of ore between to support the upper portion of the upper layer or floor.

    337

    The model consists of many small ball bearings trapped in a single layer between two transparent plates.

    338

    The molecules of the two surface-layers will exert forces upon one another, so that, when the rubbing takes place, each layer will set the molecules of the other into motion, and the energy of rubbing will be used in establishing this heat-motion.

    339

    The more deep-seated type of these rocks is seen in the olivine-gabbro mass of Carlingford Mountain; but most of the igneous region became covered with sheets of basaltic lava, which filled up the hollows of the downs, baked the gravels into a layer of red flints, and built up, pile upon pile, the great plateaus of the north.

    340

    The more highly organized species have often very numerous eyes (Amphiporus, Drepanophorus), which are provided with a spherical refracting anterior portion, with a cellular " vitreous body," with a layer of delicate radially arranged rods, with an outer sheath of dark pigment, and with a separate nerve-twig each, springing from a common or double pair of branches which leave the brain as n.

    341

    The mountain slopes are often bare or covered only with a thin layer of mould.

    342

    The muscle-fibres arise as processes from the bases of the epithelial cells; such cells may individually become sub-epithelial in position, as in the polyp; or, in places where muscular tissue is greatly developed, as in the velum or sub-umbrella, the entire muscular epithelium may be thrown into folds in order to increase its surface, so that a deeper sub-epithelial muscular layer becomes separated completely from a more superficial bodyepithelium.

    343

    The night wrap has a thicker layer of pul (polyurethane laminate) to prevent leakage.

    344

    The only grouting that should be permitted in tall buildings would be in levelling up the tops of the concrete footings to receive the masonry courses, or in a very thin layer between the column pedestal and the masonry bed.

    345

    The oogonia arise on a stalk cell from the lining layer of the cavity, the contents dividing to form eight oospheres as in Fucus, four as in Ascophyllum, two as in Pelvetia, or one only as in Halidrys.

    346

    The operation must be so performed that the growing tissues, or cambium-layer of the scion, may fit accurately to the corresponding layer of the stock.

    347

    The order Coenothecalia is represented by a single living species, Heliopora coerulea, which differs from all recent Alcyonaria in the fact that its skeleton is not composed of spicules, but is formed as a secretion from a layer of cells called calicoblasts, which originate from the ectoderm.

    348

    The ordinary macintosh or waterproof cloth is prepared by spreading on the textile fabric layer after layer of indiarubber paste or solution made with benzol or coal-naphtha.

    349

    The outer layer (the mesophyll) fixes CO2 using the enzyme PEP carboxylase to form 4-carbon organic acids.

    350

    The outer layer is known technically as the ectoderm, the inner layer as the endoderm.

    351

    The outer layer of bark in the cork oak by annual additions from within gradually becomes a thick soft homogeneous mass, possessing those compressible and elastic properties upon which the economic value of the material chiefly depends.

    352

    The outer layer of skin is formed from cells called squamous epithelium.

    353

    The outer layer of the brain in which most of the higher functions take place is called the cerebral cortex.

    354

    The outer part was originally a single layer of buff-coloured oil-tanned deerskin with the flesh surface placed outermost.

    355

    The outer single layer of cells which constitutes the surface of the vesicle is the ectoderm or epiblast.

    356

    The outer wall, especially of the upper epidermis, has a tough outer layer or cuticle which renders it impervious to water.

    357

    The outermost is the caiyptrogen, which gives rise to the root-cap, and in Dicotyledons to the piliferous layer as well.

    358

    The outermost layer of the cell-wall of the ripe spore splits along spiral lines, giving rise to the elaters; these two long strips of wall, attached by their middle points to the spore, tend to straighten out in dry, and close round the spore in damp air.

    359

    The outermost layer of the endosperm consists of square cells larger and more regular in form than those on each side; these contain aleuron grains - small particles of gluten or nitrogenous matter.

    360

    The outermost, newly formed layer is composed of a more homogeneous, denser substance than the inner one, and can be distinguished in all starch-grains that are in process of development.

    361

    The ovaries are solid bodies, of which the outer layer becomes separated from the plug of cells lying within; thus a cavity is formed which is clearly coelom.

    362

    The ovary adheres firmly to the seed in the interior, so that on examining a longitudinal section of the grain by the microscope the outer layer is seen to consist of epidermal cells, of which the uppermost are prolonged into short hairs to cover the apex of the grain.

    363

    The oxygenated metal is prepared by melting cast iron diluted with as much scrap steel as is available, and oxidizing it with the flame and with iron ore as it lies in a thin molten layer, on the hearth of a large open-hearth furnace; the thinness of the layer hastens the oxidation, and the large size of the furnace permits considerable frothing.

    364

    The passage from this tegumentary layer to the subjacent longitudinal muscular one is gradual, no membrane separating them.

    365

    The periblem, one cell thick at the apex, produces the cortex, to which the piliferous layer belongs in Monocotyledons; and the plerome, which is nearly always sharply separated from the periblem, gives rise to the vascular cylinder.

    366

    The periostracum is produced by the extreme edge of the mantle border, the prismatic layer by the part of the border within the edge.

    367

    The pigment is also principally localized in this layer, although sometimes it is present even deeper down within the musculature.

    368

    The pot plants are overhauled in the autumn, the roots pruned, a layer being cut off to allow new soil to be introduced.

    369

    The reason why at this level the walls must form an upright instead of an inverted cone, why the furnace must widen downward instead of narrowing, is, according to some metallurgists, that this shape is needed in order that, in spite of the pastiness of the slag in this formative period of incipient fusion, this layer may descend freely as the lower part of the column is gradually eaten away.

    370

    The reason why the slag is not heated effectively is that the heat is developed only in the layer of metal itself, by its resistance to the induced current, and hence the only heat which the slag receives is that supplied to its lower surface by the metal, while its upper side is constantly radiating heat away towards the relatively cool roof above.

    371

    The reduction of friction by improved mechanical arrangements, and the introduction of electric firing, enabled the layer not only to train and elevate the gun himself, but also to fire it the moment it was truly " on " the target.

    372

    The reproductive spores are borne in sacs (asci) which form a dense layer on the surface, appearing like a bloom in July; they are scattered by the wind and propagate the disease.

    373

    The result is a conformal coating (where the added layer covers the entire surface - see figure 3 below ).

    374

    The rigidity of the integument caused by the deposition of dense chitin upon it is intimately connected with the physiological activity and form of all the internal organs, and is undoubtedly correlated with the total disappearance of the circular muscular layer of the body-wall present in Chaetopods.

    375

    The rippled stalks are tied in small bundles and packed, roots downwards, in the dams till they are quite full; over the top of the upper layer is placed a stratum of rushes and straw, or sods with the grassy side downwards, and above all stones of sufficient weight to keep the flax submerged.

    376

    The root hairs grow out from the cells of the piliferous layer immediately behind the elongating tegion.

    377

    The same author proved that a sufficient thickness of layer raised the radiation to that of a black body in agreement with Kirchhoff's law.

    378

    The sandstone bed on which it rests is visible at a point just north of Goona, and in a small area round Bhilsa and Bhopal, as it is in those places freed from the layer of trap. The low-lying land includes roughly that part of the agency which lies to the east of the plateau and comprises the greater part of the political divisions of Bundelkhand and Baghelkhand and the country round Gwalior.

    379

    The second is represented above the bottom by a series of piles with burnt heads, and in the bottom by a layer of charcoal mixed with corn, apples, cloth, bones, pottery and implements of stone and bone, separated from the first layer of charcoal by 3 ft.

    380

    The seeds when placed in water for some time become coated with glutinous matter from the exudation of the mucilage in the external layer of the epidermis; and by boiling in sixteen parts of water they exude sufficient mucilage to form with the water a thick pasty decoction.

    381

    The segmentation of the fertilized nucleus results in the formation of a number of nuclei which arrange themselves around the periphery of the egg and, the protoplasm surrounding them becoming constricted, a blastoderm or layer of cells, enclosing the central yolk, is formed.

    382

    The separate layers of the starch-grain are deposited on it by the activity of the chrmatophore, and according to Meyer the grain is always surrounded by a thin layer of the chromatophore which completely separates it from the cytoplasm.

    383

    The shrub layer consists of rowan and holly, with hazel locally frequent and occasional goat willow.

    384

    The sieve tubes contain a thin lining layer of protoplasm on their walls, but no nuclei, and the cell sap contains albuminous substances which are coagulable by heat.

    385

    The simplest leaf is found in some mosses, where it consists of a single layer of cells.

    386

    The site of insertion of the needle is shown passing through the membranous layer of the superficial fascia.

    387

    The skin consist of two main layers, an outer layer called the epidermis and an inner layer called the dermis and an inner layer called the dermis.

    388

    The skin consists of a layer of cuticle, easily stripped off, secreted by an ectodermal layer one cell thick.

    389

    The skin consists of a transparent cuticle excreted by the underlying ectoderm, the cells of which though usually one-layered may be heaped up into several layers in the head; beneath this is a basement membrane, and then a layer of longitudinal muscle fibres which are limited inside by a layer of peritoneal cells.

    390

    The so-called "oxidized" silver is a copper-silver alloy coated superficially with a layer of the sulphides by immersion in sodium sulphide or otherwise.

    391

    The soil is composed of red ferruginous kankar, with a stratum of clay in the more elevated parts, covered by a thin layer of vegetable mould, or by recent alluvial deposits.

    392

    The solution is then acidified, and the phenols are'liberated and form an oily layer on the surface of the acid.

    393

    The solution of metallic chlorides or sulphates so obtained is precipitated by iron, the metallic bismuth filtered, washed with water, pressed in canvas bags, and finally fused in graphite crucibles, the surface being protected by a layer of charcoal.

    394

    The space between the parts of such substances is too large to admit of capillary action; hence the water conveyed to the surface of the soil is prevented from passing upwards any further except by slow evaporation through the mulching layer.

    395

    The specialty of the house is crepes---in simple terms, a very thin layer of dough wrapped around various ingredients.

    396

    The spongy urethra is that part which is enclosed in the penis after piercing the anterior layer of the triangular ligament.

    397

    The spores germinate on a damp surface and enter the cortex through small cracks or wounds in the protecting layer.

    398

    The steeply rising face of the plateau here is due to the resistance of a durable layer of limestone, known as the Helderberg limestone.

    399

    The stomach is generally large; its wall consists of a layer of very large ciliated cells, which often contain fat globules and yellowish-green or brown particles, and outside these a connective tissue membrane; muscular fibrillae have also been described.

    400

    The strips (inae, philyrae), which were cut with a sharp knife or some such instrument, were laid on a board side by side to the required width, thus forming a layer (scheda), across which another layer of shorter strips was laid at right angles.

    401

    The sun had melted a thin layer of water over the ice in the water trough.

    402

    The superimposed layer, which is sculptured, is generally opaque white.

    403

    The surface layer of the rhizome bears rhizoids, and its whole structure strikingly resembles that of the typical root of a vascular plant.

    404

    The surface layer of the root, sometimes included under tht term epidermis, is fundamentally different from the epidermis of the stem.

    405

    The surface of the molten metal is protected from oxidation by a layer of anthracite or charcoal.

    406

    The surface of the thallus often exhibits outgrowths in the form of warts, hairs, &c. The medullary layer, which usually forms the main part of the thallus, is distinguished from the cortical layer by its looser consistence and the presence in it of numerous, large, air-containing spaces.

    407

    The synangia consist of a stout wall composed of thick-walled cells, succeeded by a layer of more delicate and smaller elements; and internal to the wall occur two rows of sporangial loculi containing microspores.

    408

    The tapetal layer is partly formed from the sporangial wall and partly as a layer covering the trabeculae.

    409

    The tapetum is derived from the layer of cells surrounding the sporogenous group. Short trabeculae of sterile tissue have been found to project into the cavity of the sporangium of some species.

    410

    The temperature is rather remarkable, there being an intermediate cold layer between 25 and 50 fathoms. This is due to the sinking of the cold surface water (which in winter reaches freezing-point) on to the top of the denser more saline water of the greater depths.

    411

    The term epithallus is sometimes applied to the superficial dense portion of the cortical layer and the term hypothallus to the layer, when specially modified, in immediate contact with the substratum; the hypothallus is usually dark or blackish.

    412

    The tower currently stands derelict covered in a thick layer of ivy in the garden of a private house.

    413

    The two apposed layers of endoderm in the cathammal area undergo complete fusion to form a single layer of epithelium, the endoderm-lamella of the adult medusa.

    414

    The typical foliage leaf consists of several layers, and amongst vascular plants is distinguishable into an outer layer (epidermis) and a central tissue (parenchyma) with fibro-vascular bundles distributed through it.

    415

    The understorey is a sparse layer of elder, hawthorn with some regenerating cherry.

    416

    The upper layer is the corneagen and secretes the lens, the lower is the retinal layer.

    417

    The upper layer of the soil must therefore be free from weeds, finely pulverized and stocked with a readily-available supply of nutriment.

    418

    The usual process was to gather, first, a small quantity of opaque white glass; to coat this with a thick layer of translucent blue glass; and, finally, to cover the blue glass with a coating of the white glass.

    419

    The vanguard of this advancing army is composed of a more or less compact layer of the mono-nuclear phagocytes (polyblasts) accompanied by numerous new vessels.

    420

    The whole current supplied to the house flows through an electrolytic cell consisting of a glass tube containing two platinum electrodes; the electrolyte is dilute sulphuric acid covered with a thin layer of oil to prevent evaporation.

    421

    The whole organic substance may have been removed, or may persist merely as a thin carbonaceous layer.

    422

    The wine, however, contains alcohol and water, both of which evaporate, but the alcohol faster than the water, so that the superficial layer becomes more watery.

    423

    The wood used in building is obtained from trees of the class known to botanists as exogens, or those trees which grow larger by the addition each year of a layer of new wood on their outer surface.

    424

    The young stems, and the older stems of certain species, are clearly monostelic; but in other species an inner and outer endodermis may be present, or an endodermal layer surrounds each bundle.

    425

    The zoarium may rise up into erect growths composed of a single layer of zooids, the orifices of which are all on one surface, or of two layers of zooids placed back to back, with the orifices on both sides of the fronds or plates.

    426

    The zone of the external surface of the mantle within the edge secretes a layer formed of prisms of calcite; the rest of the epithelium from this zone to the apex secretes the inner layer of the shell, composed of successive laminae; this is the nacreous layer, and in certain species has a commercial value as nacre or mother-of-pearl.

    427

    Their feet are pushing backward thereby supporting the right-to-left movement of the winged creatures in the lower layer.

    428

    Their functions in annual, biennial and herbaceous perennial plants cease after the ripening of the seed, whilst in plants of longer duration layer after layer of strong woody tissue is formed, which enables them to bear the strains which the weight of foliage and the exposure to wind entail.

    429

    There is no " transverse " disturbance, that is, there is in air no motion across the line of propagation, for such motion could only be propagated from one layer to the next by the " viscous " resistance to relative motion, and would die away at a very short distance from the source.

    430

    These " dry diggings " were therefore at first supposed to be alluvial in origin like the river gravels; but it was soon discovered that, below the red surface soil and the underlying calcareous deposit, diamonds were also found in a layer of yellowish clay about 50 ft.

    431

    These calculators can be used for either primary or secondary single layer helical coils.

    432

    These cavities are completely roofed by a layer of cells; in the centre of the roof is a pore surrounded by a ring of special cells.

    433

    These cells are thus being transformed into a hard protective layer.

    434

    These coloured spots are due to the presence of a sorus or layer of countless numbers of minute brown spores, the uredospores of the summer fruiting form.

    435

    These constitute a hypodermal layer, beneath which the chlorophyll cells of the parenchyma are densely packed together, and are elongated in a direction vertical to the surface of the leaf, forming the palisade tissue.

    436

    These extracts were analyzed using thin layer and HPLC and then fractionated.

    437

    These hollow roots terminate blindly in the dorsal epidermis of the collar, and place the nervous layer of the latter in direct connexion with the fibres of the nerve-tube.

    438

    These should be covered with a layer of 2 or 3 in.

    439

    They are highly saline, as they grow from a thin layer of concentrated brine that forms above the sea ice.

    440

    They are ridges of aeolian limestone plastered over by a thin layer of corals and other calcareous organisms. The very remarkable "serpuline atolls" are covered by a solid crust made of the convoluted tubes of serpulae and Vermetus, together with barnacles, mussels, nullipores, corallines and some true incrusting corals.

    441

    They have a layer of compact cells on their surface, but no true epidermis, and no stomata.

    442

    They increase in size and acquire a cell-wall, which becomes differentiated into an outer cuticular layer, or extine, and an inner layer, or intine.

    443

    They possess a delicate Laticiferous layer of protoplasm, with numerous small nuclei lining Tissue the walls, while the interior of the tube (corresponding with the cell-vacuole) contains a fluid called latex, consisting of an emulsion of fine granules and drops of very various substances suspended in a watery medium in which various other substances (salts, sugars, rubber-producers, tannins, alkaloids and various enzymes) are dissolved.

    444

    This cellular layer is called the hypodermis; it is protected externally by a cuticle, a layer of matter it itself excretes, or in the excretion of which it plays, at any rate, an important part.

    445

    This consists typically of close-fitting layers of cells with completely suberized walls, intended to replace the epidermis as the external protective layer of the plant when the latter, incapable as it is of further growth after its original formation, is broken and cast off by the increase in thickness of the stem through the activity of the cambium.

    446

    This embryo-sac increases in size, gradually supplanting the cellular tissue of the nucellus until it is surrounded only by a thin layer of it; or it may actually extend at the apex beyond it, as in Phaseolus and Alsine media; or it may pass into the micropyle, as in Santalum.

    447

    This enabled the gun to be layed from some little distance behind, so that the layer could be clear of recoil, and continuous laying was thus possible.

    448

    This is an upper layer in the solar atmosphere called the chromosphere.

    449

    This is removed by solution in hot dilute sulphuric acid and a layer of pure frosted silver is left on the surface, which appears dead white in colour, and has lost its metallic lustre.

    450

    This layer also forms the attachment for the muscles, of which there are two enveloping coats, a circular and a longitudinal layer and also dorso-ventral fibres.

    451

    This layer he believes specially characteristic of arid dusty regions, while comparatively non-existent in moist climates or where foliage is luxuriant.

    452

    This layer is separated, and the phenol recovered by a process of fractional distillation.

    453

    This layer of abstraction allowed the user interface front-end to be conveniently separated from any audio device specifics.

    454

    This outlet having been closed by small stones and sulphate of lime cement, the pit is filled with sulphur ore, which is heaped up considerably beyond the edge of the pit and covered with a layer of burnt-out ore.

    455

    This sealed a yellowish-brown sandy clay with inclusions of charcoal and ceramic building material interpreted as a layer of overburden (C1147 ).

    456

    This sheet of tissue is called the coenosarc. Its lower surface is clothed with a layer of calicoblasts which continue to secrete carbonate of lime, giving rise to a secondary deposit which more or less fills up the spaces between the individual coralla, and is distinguished as coenenchyme.

    457

    This shrub layer may include hazel, hawthorn or blackthorn.

    458

    This suggests a pure calcite interior with an outer layer of ferroan dolomite.

    459

    This surface layer in the typically subaerial shoot of the sporophyte in Pteridophytes and Phanerogams is known as the epidermis, though the name is restricted by some writers, on account of developmental differences, to the surface layer of the shoot of Angiosperms, and by others extended to the surface layer of the whole plant in both these groups.

    460

    This will slough off over 7-10 days. The outer layer will then have healed sufficiently to make a healthy anastomosis.

    461

    This, they claim, is evident in everything from discourses of genetic essentialism to the realities of ozone layer thinning.

    462

    Those central cells are the mother-cells of the pollen, whilst the small-celled layer of tissue external to them becomes the endothecium, the exothecium being formed from the epidermal layer.

    463

    Throughout the Angiosperms the epidermis of the shoot originates from separate initials, which never divide tangentially, so that the young shoot is covered by a single layer of dividing cells, the dermatogen.

    464

    Thus the growth of the shell in extent is due to additions to the prismatic layer at the edge, its growth in thickness to new layers of nacre deposited on its inner surface.

    465

    Thus the nephridia, in this case at least, are a part of the coelom and are not shut off from it by a layer of peritoneum, as are other organs which lie in it, e.g.

    466

    Thus, as long as every ion of the solution is present in the layer of liquid next the electrode, the one which responds to the least electromotive force will alone be set free.

    467

    To diminish the resistance the current should pass through as small a layer of liquid as possible.

    468

    To prevent the bottom of the apparatus being knocked out by the impact of the substance, a layer of sand, asbestos or sometimes mercury is placed in the tube.

    469

    To prevent this various implements, such as disk harrows and specially constructed rollers, may be used to consolidate the upper stirred portion of the soil and place it in close capillary relationship with the lower unmoved layer.

    470

    Treatment of Settled Soap. - The upper layer having been removed, the desired soap is ladled out or ran off to a crutcher, which is an iron pan provided with hand or mechanical stirring appliances.

    471

    Turn up the shine with a thin layer of clear lip gloss over lipstick or alone.

    472

    Two layers are specially obvious in its walls - the inner layer bordering the lumen being composed of smaller ciliated cells, the outer thicker one containing numerous granular cells and having a more glandular character.

    473

    Up to this point you could say aerators had been barely penetrating the rootzone layer and deep compaction was still a problem.

    474

    Used in its widest sense this includes the Hysteriaceae, Phacidiaceae, Helvellaceae, &c. The group is characterized in general by the possession of an ascocarp which, though usually a completely closed structure during the earlier stages of development, at maturity opens out to form a bowl or saucer-shaped organ, thus completely exposing the layer of asci which forms the hymenium.

    475

    Usually the epidermis is immediately followed by the circular layer of muscles, and this by the longitudinal coat.

    476

    Usually the original organic substance remains as a thin carbonaceous layer forming the surface of the cast, but sometimes it has entirely disappeared.

    477

    Very small seeds should only have a sprinkling of light earth or of sand, and sometimes only a thin layer of soft moss to exclude light and preserve an equable degree of moisture.

    478

    Warburg in 1875 on the viscosity of gases; its effects would be corrected for, in general, by a slight effective addition to the thickness of the gaseous layer.

    479

    We can distinguish (I) digestive endoderm, in the stomach, often with special glandular elements; (2) circu-, latory endoderm, in the radial and ring canals; (3) supporting endoderm in the axes of the tentacles and in the endodermlamella; the latter is primitively a double layer of cells, produced by concrescence OC-- = w.?"

    480

    We live on that incredibly fragile, thin layer of plates floating on the subterranean sea of magma.

    481

    We may regard it as a form of unipolar immigration in which the immigrating cells pass into the interior in a connected epithelial layer, instead of going in singly and independently.

    482

    We put a layer of coarse grit in the bottom of the hole to improve the drainage in our heavy clay soil.

    483

    Wet snow avalanches During periods of warm weather, water from melting surface snow can permeate through the snowpack to a weak layer.

    484

    When a little soil is shaken up with water in a tumbler the sand particles rapidly fall to the bottom and form a layer which resembles ordinary sand of the seashore or river banks.

    485

    When applied to broken skin or exposed surfaces it coagulates the albumen in the discharges, forming a protecting layer or coat.

    486

    When dry, we dust the batt with dry powdered kaolin (china clay ), which acts as a second protective layer.

    487

    When melted the products separate on the bed (which is made of closely packed sand or other infusible substances), according to their density; the lighter earthy matters forming an upper layer of slag are drawn out by the slag hole K at the flue end into an iron wagon or bogie, while the metal subsides to the bottom of the bed, and at the termination of the operation is run out by the tap hole L into moulds or granulated into water.

    488

    When the amount of this ion in the surface layer becomes too small to carry all the current across the junction, other ions must also be used, and either they or their secondary products will appear also at the electrode.

    489

    When the first ball or " gathering 'T has cooled sufficiently, the whole is again dipped into the molten glass and a further layer adheres to the pipe-end, thus forming a larger ball.

    490

    When the pith is large celled, the xylems of the bundles are separated from it by a distinct layer of conjunctive tissue called the endocycle, and a similar layer, the pericycle, separates the phloem from the cortex.

    491

    When the space to be thus occupied is prepared, a thin layer of sand or poor earth is laid upon the surface and over this a similar layer of good soil.

    492

    When the wind acts on the surface of the sea it drives before it the particles of the surface layer of water, and, as these cannot be parted from those immediately beneath, the internal friction of the fluid causes the propelling impulse to act through a considerable depth, and if the wind continued long enough it would ultimately set the whole mass of the ocean in motion 'right down to the bottom.

    493

    While the metal lies tranquilly on the bottom of the furnace, any slag mechanically suspended in it has a chance to rise to the surface and unite with the slag layer above.

    494

    Whilst still at the basal layer, they begin forming a protein called keratin.

    495

    With large, brown eyes and dark hair, she was toned and tall, a model's body with an extra layer of muscle.

    496

    Within the circular muscles is a layer of longitudinal muscles, very often broken into bundles, the number of which is often of specific importance.

    497

    Within this is usually a sheath of connective tissue, which surrounds a layer of circular muscles; the latter may be split up into separate bundles, but more usually form a uniform sheet.

    498

    Young caught the " flash spectrum " of the reversing layer, at the moment of second contact, at Xerez de la Frontera in Spain, on the 22nd of December 1870.

    499

    Young cells ar full of cytoplasm, old cells generally contain a large vacuole or vacuoles, containing cell-sap, and with only a thin, almost invisible layer of cytoplasm on their walls.

    500

    Your entire dull skin gets a layer of pure essential oils.