1908. | Minute Structure of the Nervous System. 423 
Fic. 5.—Portions of Antenne, Parapodium, and Skin of Nerezs diversicolor, with stained 
bipolar sensory cells and their processes, 
new cell types and ramifications of cell processes, he also established the 
relations of the cells to one another in many respects. It would take too 
long to give a detailed account here of these researches, and the investigator 
himself in his Croonian Lecture to this distinguished Society, in 1894, 
described several of his most important discoveries in this branch of science. 
Wilhelm His, of Leipzig, the eminent anatomist and histologist, had formed 
the conviction as long ago as in 1883, from his studies of the nervous system of 
the embryo, that the nerve-cells develop from the very first as organs 
