Vernon L, y m a n Kellogg 



material used, of each experiment. His beds of 

 seedlings contain hundreds, often thousands, of 

 individuals where other men are content with hun- 



Leaves of Hybrid Blackberry Plants of the Same Parentage 



dreds. Another element in his work is his prodi- 

 gality of time. Experiments begun twenty years 

 ago are actually still under way. 



In all that I have so far written, I have pur- 

 posely kept to general statements applicable to 

 Burbank's work as a whole. My readers might 



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