^2 Bulletin of Laboratories of Dcnison University. t^'°'- ^^'^ 



text-book on comparative neurology. But this period of work 

 he was not able to enter far and the text-book is still unpub- 

 lished. This manuscript, together with that of several other 

 projected works on psychology and ethics, remains. It is yet 

 too early to state how much of this matter can be edited for pub- 

 lication. If the last ten years of his life could have been 

 spent in Granville, as was his plan, results of moment in the way 

 of correlation would undoubtedly have followed. As it is, none 

 of the papers in neurological lines were regarded by him as other 

 than fragments. 



The first important paper in neurology was published in the 

 Journal of the Cincinnati Society of Natural History — "Notes 

 upon the Brain of the Alligator." This is an elaborate descrip- 

 tive article illustrated with nearly a hundred of the beautiful 

 pen drawings which he used so freely in all of his work. 



The second neurological paper of special importance was 

 the leading article in the first issue of the Journal of Comparative 

 Neurology, on the histogenesis of the cerebellum in correlation 

 with its comparative anatomy. This paper was ignored largely 

 by the workers immediately following, but its main points have 

 been fully confirmed by later students. It is really, though very 

 brief, one of his best contributions. 



Of the remaining neurological papers, the most important 

 were published in the Journal of Comparative Neurology, those 

 in the Anatomischer Anseiger, American Naturalist, etc., being 

 for the most part summaries of the longer articles. These w'ere 

 descriptive articles in most cases, devoted mainly to the brain of 

 fishes and reptiles, with some attention to amphibians. 



The greater part of his descriptions of the fish brain have 

 since been worked over with the same sections which he used 

 in hand, and his descriptions have been found to be very exact, 

 though often so brief as to make it difficult to understand them 

 without reference to the preparations. Furthermore they stand 

 the test of control by the more recent neurological methods very 

 well, though of course not always in detail. His method of push- 

 ing a given research through rapidly enabled him to cover a great 



