IV. On the structure of amœboid protoplasm, with a comparison between the nature of the contractile process in amœboid cells and in muscular tissue, and a suggestion regarding the mechanism of ciliary action

It has been shown by the researches of numerous histologists, of whom Heitzmann and Frommann, and, in this country, Klein, must be reckoned the pioneers, that the protoplasm of many cells exhibits the appearance of a network containing an apparently homogeneous material in its meshes.