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t 



BIOLOGY 



LJBftARY 



G 



Copyright. 1904, by 

 WILLIAM T. HORNADAY 



First Publication, April, 1904 



Copyright, 1914, by 

 WILLIAM T. HORNADAY 



Fireside Edition published September, 1914 



SPECIAL NOTICE 



The publishers hereby give warning that 

 the unauthorized use of illustrations, charts, 

 or maps from this book is expressly forbidden. 



