PARTICULAR PARTS OF ORGANISM INDICATIVE OF MODE OF LIFE AND MENTAL TENDENCY.
We have next to inquire, whether that which is undoubtedly true with respect to the whole does not also obtain with respect to a part? whether, in fact, from the examination of a small portion of an organism—an extremity, for example—we should be enabled to determine the nature, mode of life, and mental tendency of the being to which it belonged? For a satisfactory solution of this important question we must appeal to the testimony afforded by the animal world.