worker might devote only an hour or two each day to these 

 experiments, the committee would be able to aid him in selecting 

 a small number of solutions for comparison. Every little piece 

 of careful experimentation (provided only that it fits in as a part 

 of the general plan) will count in the general summation. 



K. F. Kellerman, 



Wm. Crocker, 



B. E. Livingston (Chairman), 



Special Committee on Salt Requirements 

 of Representative Agricultural Plants, 

 National Research Council, Division of 

 Biology and Agriculture. 

 DR. A. G. McCALL, 

 ARORATORY POR SOIL INVESTIGATIONS, 

 ''NIVERSITY OF MARYLAND, 

 ■ ^ ' ^''■'^ IMRK, MD. 



