6 PREFACE 



intimate relations between botany and agriculture. The 

 practical questions at the end of each section, it is hoped, 

 will have the effect of bringing out these relations more 

 clearly and at the same time of leading the pupil to reason 

 for himself and draw his own inferences from the common 

 phenomena about him. 



The author takes pleasure in acknowledging here the 

 many obligations due to Dr. C. O. Townsend of the United 

 States Department of Agriculture for his very effective 

 assistance in revising the manuscript of this work ; also to 

 Professor Charles Wright Dodge of the University of 

 Rochester, and Professor W. F. Ganong of Smith College 

 for valuable criticisms and suggestions. Acknowledg- 

 ments are also due to Messrs. D. Appleton and Company, 

 for permission to use illustrations from Coulter's " Plant 

 Relations" and "Plant Structures," copyright, 1899, and 

 to the owners of Gray's Botanies, to Professor William 

 Trelease of the Missouri Botanical Garden, to Mr. 

 Gifford Pinchot of the United States Department of 

 Agriculture, and to Mr. W. S. Bailey of the Chautauqua 

 Bureau of Publication, for permission to reproduce illus- 

 trations from their pubUcations. Quite a number of the 

 figures used are from original drawings by pupils of the 

 Washington, Ga., High School. 



