ELEMENTARY LESSONS 



ZOOLOGY 



A GUIDE IN STUDYING ANIMAL LIFE AND 



STKUCTUKE IN FIELD AND 



LABORATORY 



BY 



JAMES G. NEEDHAM, M.S. 



INSTRUCTOR IN ZOOLOGY, KNOX COLLEGE, GALESBURG, ILL. 



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NEW YORK ... CINCINNATI -.. CHICAGO 



AMERICAN BOOK COMPANY 



