INTRODUCTION TO 

 BOTANY 



BY 



JOSEPH Y. BERGEN, A.M. 



AUTHOR OF "PRACTICAL BOTANY," " ESSENTIALS OF BOTANY 1 

 "PRIMER OF DARWINISM," ETC. 



AND 



OTIS W. CALDWELL, Pn.D. 



AUTHOR OF "PRACTICAL BOTANY," "PLANT MORPHOLOGY" 



AND "LABORATORY MANUAL OF BOTANY" 



ASSOCIATE PROFESSOR OF BOTANY IN THE SCHOOL OF EDUCATION 

 THE UNIVERSITY OF CHICAGO 



GINN AND COMPANY 



BOSTON NEW YORK CHICAGO LONDON 



