THE LUTHER BURBANK SOCIETY 



The Society has at its command a fund of usable 

 information such as has never before been brought 

 together in the interest of a single line of knowl- 

 edge. 



All that has been hoped of the present volumes, 

 of which this is the concluding one, is that they will 

 serve to stir up a broader interest than has ever 

 been known in this vital subject; that they will 

 acquaint the general reader with the importance 

 of the work and give the practical beginner a fair 

 start toward his goal. All that has been expected 

 of these volumes is that they will be the beginning 

 of what must become a world-wide movement. 



If The Society's work is to reach its maximum 

 result, this set of books must be but the forerunner 

 of many millions of pieces of printed matter which 

 shall give guidance to those who take up the study 

 of improving living things, whether plant or hu- 

 man. And for this work there is already in The 

 Society's vaults ample material on hand. 



Already, coincident to the publication of these 

 books, The Society has found the time and means 

 to publish and prepare for distribution a series of 

 monographs, each dealing with some specific phase 

 of gardening, fruit growing, flower raising, farm 

 management, and kindred subjects. Already there 

 has been prepared a separate series dealing with 

 the improvement of the human plant, consisting 



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