I 

 / / 



AMERICAN SCIENCE SERIES, ELEMENTARY COURSE 



_ 



FIRST LESSONS 



IN 



ZOOLOGY 



ADAPTED FOR USE IN SCHOOLS 



A. S. PACKARD, M.D., PH.D. 



Professor of Zoology and Geology in Brown University 



THIRD EDITION, REVISED 



NEW YORK 

 HENRY HOLT AND COMPANY 



1889 



