INTRODUCTION TO 
BOTANY 
BY 
JOSEPH Y. BERGEN, A.M. 
AUTHOR OF “PRACTICAL BOTANY,” '' ESSENTIALS OF BOTANY”’ 
'' PRIMER OF DARWINISM,” ETC. 
AND 
OTIS W. CALDWELL, Pu.D. 
AUTHOR OF ''PRACTICAL BOTANY,” “ PLANT MORPHOLOGY” 
AND “LABORATORY MANUAL OF BOTANY” 
ASSOCIATE PROFFSSOR OF BOTANY IN THE SCHOOL OF EDUCATION 
THE UNIVERSITY OF CHICAGO 
GINN AND COMPANY 
BOSTON + NEW YORK - CHICAGO - LONDON 
