THE MAMMALIAN CEREBELLUM. 



By Bert Brenette Stroud, B.S. 

 Part I. The developnieiit of the Cerebellum in Man and the Cat. ^ 



hitroduction. 



In 1 89 1 the writer prepared a baccalaureate thesis on the 

 Flocculus. The present investigation was begun as an effort to 

 determine (i) whether the flocculus occurs in all mammals and 

 (2) what are its anatomy, histology and functions. It soon ap- 

 peared, however, that these questions are part of a more com- 

 prehensive problem as to the constitution of the entire cere- 

 bellum. 



Acknoivledgements. — This thesis has been prepared in the 

 Anatomical Laboratory of Cornell University. It is with the 

 greatest pleasure that I acknowledge my indebtedness to Pro- 

 fessor B. G. Wilder for permission to examine all of his prepar- 

 ations and for criticism, counsel and encouragement. 



I am indebted also to Professor S. H. Gage and Instructor 

 P. A. Fish for advice as to methods, photographing specimens, 

 etc. ; to Mrs. S. H. Gage for suggestions as to drawings and for 

 permission to examine sections of embryo kittens' brains ; and 

 to Dr. H. B. Besemer and other medical friends for valuable 

 material. 



'Part I was presented to the Faculty of Cornell University as a thesis for 

 the degree of Doctor of Science, May i, 1895. The remaining parts (Compar- 

 ative Anatomy, Histology and Function) will be published as soon as circum- 

 stances permit. 



