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AQUATIC MAMMALS 



Their Adaptations to Life in the Water 



By 

 A. BRAZIER HOWELL 



Lecturer in Comparative Anatomy 

 Department of Anatomy 



The Job /IS Hopkins University 



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^^V 



^//. 



-^/A/ 



With fifty-four illustrations 



^'6 



ff^ 



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CHARLES C THOMAS - PUBLISHER 



SPRINGFIELD, ILLINOIS BALTIMORE, MARYLAND 



MDCCCCXXX 



