PUBI.ISHED BY AUTHORITY OF THE SECRETARY 

 OF AGRICULTURE, WITH THE COOPERATION 

 OF THE ASSOCIATION OF AMERICAN AGRICUL- 

 TURAL COLLEGES AND EXPERIMENT STATIONS 



EDITORIAL COMMITTEE 



FOR THE DEPARTMENT 



FOR THE ASSOCIATION 



KARL F. KEIvI/ERMAN, Chairman RAYMOND PEARL 



Physiologist and Assisian/ Chief, Hnreaii 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Stations 



CHARLES L. MARLATT 



Assistant Ctiief, Bureau of Entomology 



Siologist, Maine Agriciiltt'.ra! Experinient 

 Station 



H. P. ARMSBY 



Directdrr, Instiiuie of Animal Nutrition, The 

 Pennsylvania State Cot'i'i,' 



M. M. FREEMAN 



Botanist, Plant Pathologist, and Assistant 

 Dean, Agricultural Experiment Station of 

 the University of Minnesota 



All correspondence regarding articles from the Department of Agriculture 

 should be addressed to Karl F. Kellerinan, Journal of Agricultural Research, 

 Washington, D. C. 



All correspondence regarding articles from Experiment Stations should be 

 addressed to Ra\Tnond Pearl, Journal of Agricultural Research, Orono, Maine. 



