A TEXT BOOK 



OF 



PHYSIOLOGY 



BY 



M. FOSTER, M.A., M.D., LL.D., F.E.S., 



PROFESSOR OF PHYSIOLOGY IN THE UNIVERSITY OF CAMBRIDGE, 

 AND FELLOW OF TRINITY COLLEGE, CAiMBRIDGE. 



WITH ILLUSTRATIONS. 



FIFTH EDITION, LARGELY REVISED. 



PART III. 



The Central Nervous System. 



Uon&on : 

 MACMILLAN AND CO. 



AND NEW YORK. 

 1890 



[The Right of Translation is reserved.} 



