LUTHER BURBANK 
HIS METHODS AND DISCOVERIES AND 
THEIR PRACTICAL APPLICATION 
PREPARED FROM 
HIS ORIGINAL FIELD NOTES 
COVERING MORE THAN 100,000 EXPERIMENTS 
MADE DURING FORTY YEARS DEVOTED 
TO PLANT IMPROVEMENT 
WITH THE ASSISTANCE OF 
The Luther Burbank Society 
AND ITS 
ENTIRE MEMBERSHIP 
UNDER THE EDITORIAL DIRECTION OF 
John Whitson and Robert John 
AND 
Henry Smith Williams, M. D., LL. D. 
VOLUME XI 
ILLUSTRATED WITH 
105 DIRECT COLOR PHOTOGRAPH PRINTS PRODUCED BY A 
NEW PROCESS DEVISED AND PERFECTED FOR 
USE IN THESE VOLUMES 
NEW YORK AND LONDON 
LUTHER BURBANK PRESS 
MCMXV 
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