EDITORIAL COMMI'TTEE OF THE 

 UNITED STATES DEPARTMENT OF AGIIICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 

 COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMENT 



FOR THE ASSOCIATION 



KARIyF. KELLERMAN, CHAIRMAN RAYMOND PEARL* 



Physiologist and Associal^ Chief, Bureau Biologist, Maine Agricultural Experiment 



of Plant Industry 



EDWIN W., ALLEN 



Chiefs Office of Experiment Stations 



CHARLES L. MARLATT 



Entomologist and Assistant Chief, Bureau 

 of Entomology 



Station 



H. P. ARMSBY 



Director, Institute rf A n imal Nutrition ,Tke 

 Pennsylvania State. College 



E.M. FREEMAN 



Botanist, Plant PatJwlogist and Assistant 

 Dean, Agricultural Experiment Station of 

 ike 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 lindertaken special work in connection with the war emergency; 

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

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

 State College, Pa. 



