NEW-WORLD SCIENCE SERIES 

 Edited by John W. Ritchie 



SCIENCE 

 OF PLANT LIFE 



A High School Botany 



Treating of the Plant and Its Relation 



to the Environment 



by 



Edgar Nelson TranseaUy Ph.D. 



Professor of Botany, The Ohio State University 



ILLUSTRATED 



tvlth engravings^ diagrams, and maps 

 and luith 120 original dra'wings hy 



Robert y. Sim 



Yonkers-on-Hudson, New York 



WORLD BOOK COMPANY 



I 9 2 I 



