Other eminent names of the same school are Anton de Hain (1704-1776), Anton Stdrek (1731-1803), Maximilian Stoll (1742-1788), and John Peter Frank (1745-1821), father of Joseph Frank, before mentioned as an adherent of the Brownian system, and like his son carried away for a time by the new doctrines.
Many bacteria when suspended in a fluid exhibit a power of independent movement which is, of course, quite distinct from the Brownian movement - a non-vital phenomenon common to all finelydivided particles suspended in a fluid.