318 THE AMEBIC AX NATURALIST [Vol. XLVI 



The two Navy series first came to my attention on the 

 farms of George A. Harris and Elmer Dille at Mount 

 Hermon, near Plantsville, Athens Co., Ohio, in the fall of 

 1907. From the Harris farm 160 plants were taken, 

 giving rise to 160 ' ' pnre lines. ' ' These are the Navy H, 

 or NH series. From the Dille field 550 plants were taken 



and yielded 550 "pure lines," designated as the Navy D 

 series. These two fields furnished, as explained in detail 

 in a subsequent section, the starvation and feeding tracts 

 of the experiment. 



Dr. Shull's seeds saved for individual plants of a crop 

 of 1907 yielded 80 lines of Ne Plus Ultra and 100 of White 

 Flageolet. 



The history of these strains during the course of the 



