EDITORIAL COMMTTTEB OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMENT 



FOR THE ASSOCIATIOir 



KARJU F. KELIvERMAN, Chairman RAYMOND PEARL 



Pltysiotogist and Associate Chief, Bureau 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Staiions 



CHARLES L. MARLATT 



Ent»moiogist and Assistant Chief, Bureau 

 of Entomology 



Bioloftisi, Maine Agricultural Experiment 

 Station 



H. P. ARMSBY 



Director, Institute of Animal Nutrition, Tte 

 Pennsylvania State College 



E. M. FREEMAN 



Botanist, Plant Paiholoffist 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. Kellerman, Journal of Agricultural Research, Washington, D. C. 



* Dr. Pearl has imdertaken special work in connection with the war emergency; 

 therefore, until further notice all correspondence regarding articles from State Ejqpeti- 

 ment Stations should be addressed to H. P. Armsby, Institute of Animal Nutriticm, 

 State College, Pa. 



