A TEXT- BOOK OF 

 COMPARATIVE PHYSIOLOGY 



FOR STUDENTS AND PRACTITIONERS OP 

 COMPARATIVE- (VETERINARY) MEDICINE 



BY 

 WESLEY MILLS 



M. A., M. D., B. V. S. 



PROFESSOR OP PHYSIOLOGY IN THE FACULTY OF HUMAN MEDICINE AND THE FACUliTT 



OP COMPARATIVE MEDICINE AND VETEBINAKY SCIENCE OP HO QILL 



UNIVERSITY, MONTREAL ; AUTHOR OF A TEXT-BOOK 



OF ANIMAL PHYSIOLOQY, ETC. 



WITH 476 ILLUSTRATIONS 





NEW YORK 

 D. APPLETON AND COMPANY 



LONDON: CAXTON HOUSE, PATERNOSTER SQUARE 

 1890 



