Nor are these "bioplasts" mere structureless matter, however minute they may be as "little points." They differ only from "morphological cells," in the definitional language employed by different theorists, and lack the all-essential accuracy of distinction necessary to scientific classification. To define a bioplast as a germinal point in germinal matter, or bioplasm, is to draw no satisfactory line of distinction between the two, except that the one is a mere aggregation of the other. A germinal mass is only made up of germinal points--those considered as the least of any given whole--however infinitesimal they may be in theoretical statement. If any germinal point in germinal matter, therefore, be a bioplast, then every germinal point, to the extent of making up its entire mass, must be a bioplast; and the distinction between the two becomes merely verbal, and without generic signification. But every morphological cell is conceded to be an organism, whether it lie within or beyond the microscopic limit. And it invariably exhibits a greater or less amount of cellular activity at its centre. It grows rather than spins; it builds up tissue, rather than weaves it into warp and woof; it assimilates nutritive matter rather than plies a loom in any conceivable sense in which we may view that industrial machine. No matter what we may call this point of vital activity in a cell--whether it be a bioplast, a plastid, a physiological unit, or a granule of "elementary life-stuff"--it simply performs the one single function of life to which it is specifically assigned in the process of "building up" any one identical individual of a species, whether it be a man, an ape, a tree, or a parasitic fungus. The very admission that the bioplast spins, makes it an organism, and not mere structureless matter. For the first thread it spins is manifestly for its own covering or the ornamentation of its own cell-walls. And to speak of these as "structureless matter" is to confound all scientific sense, as well as meaning.