PRACTICAL BOTANY 



BY 



JOSEPH Y. BERGEN, A.M. 



AUTHOR OF "ELEMENTS OF BOTANY," "FOUNDATIONS OF BOTANY" 

 " PRIMER OF DARWINISM," ETC. 



OTIS W. CALDWELL,'PH,IX '"" V- ,'*? 



AUTHOR OF "PLANT MORPHOLOGY" AND LABORATORY M?AM?Ai, ojfBT ) AV$ 



ASSOCIATE PROFESSOR OF BOTANY IN THE SCHOOL OF EDUCATION 



UNIVERSITY OF CHICAGO 



GINN AND COMPANY 



BOSTON NEW YORK CHICAGO LONDON 

 ATLANTA - DALLAS COLUMBUS SAN FRANCISCO 



