DISEASE IN CAPTIVE WILD 
MAMMALS AND BIRDS 
INCIDENCE, DESCRIPTION, COMPARISON 
BY. 
HERBERT FOX, M.D. 
PATHOLOGIST TO THE ZOOLOGICAL SOCIETY OF PHILADELPHIA. DIRECTOR OF THE WILLIAM 
PEPPER CLINICAL LABORATORY, UNIVERSITY OF PENNSYLVANIA 
WITH A FOREWORD BY 
CHARLES B. PENROSE, M.D. 
PRESIDENT OF THE ZOOLOGICAL SOCIETY OF PHILADELPHIA 
PHILADELPHIA, LONDON y CHICAGO 
J. B. LIPPINCOTT COMPANY 
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