WORLD BOOK COMPANY 



THE HOUSE OF APPLIED KNOWLEDGE 

 Established, 1905, by Caspar W. Hodgson 



YONKERS-ON-HUDSON, NeW YoRK 



2126 Prairie Avenue, Chicago 



World Book Company offers Science of Plant 

 Life for high school use. The book em- 

 bodies a response to the attractiveness of 

 plant life, a steadfast scientific spirit that 

 yields neither to sentiment nor to utility, 

 and an appreciation of the fact that the fun- 

 damental reason for giving botany a place in 

 our general scheme of education is that it is 

 the natural scientific background for the 

 great plant-producing arts. It is a text that 

 accords well with our motto, " Books that 

 apply the world's knowledge to the world's 

 needs " 



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Copyright, 1919, by World Book Company 



Copyright in Great Britain 



All rights reserved 



