A TEXT-BOOK OF 
ANIMAL PHYSIOLOGY 
WITH INTRODUCTORY CHAPTERS 
ON GENERAL BIOLOGY 
AND A FULL TREATMENT OF REPRODUCTION 
FOR STUDENTS OF HUMAN AND COMPARATIVE (VETERINARY) 
MEDICINE AND OF GENERAL BIOLOGY 
BY 
WESLEY MILLS 
M.A., M.D, L. R. CoP. (ENG.) 
PROFESSOR OF PHYSIOLOGY IN MC GILL UNIVERSITY AND THE VETERINARY COLLEGE 
MONTREAL 
WITH OVER FIVE HUNDRED ILLUSTRATIONS 
NEW YORK 
D. APPLETON AND COMPANY 
LONDON: CAXTON HOUSE, PATERNOSTER SQUARE 
1889 
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