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The Study 



of 



Animal Life 



BY J.'^^RTHUR THOMSON, M.A., F.R.S.E. 



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LECTURER ON ZOOLOGY, SCHOOL OF MEDICINE, EDINBURGH 



jot JT-AUTHOR OF ' THE EVOLUTION OF SEX ' 

 AUTHOR OF 'outlines OF ZOOLOGY' 



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WITH ILLUSTRATIONS 



NEW YORK 



CHARLES SCRH^^NER'S SONS 



153-157 FIFTH AVENUE 



190; 



