PUBI.ISHED BY AUTHORITY OF THB SECRETARY 

 OF AGRIGUIvtURE, WITH THE COOPERATION 

 OF THE ASSOCIATION OF AMERICAN AGRICUE- 

 TURAE COLLEGES AND EXPERIMENT vSTATlONS 



EDITORIAL COMMITTEE 



FOR TEDB DEPARTMENT 



FOR THE ASSOCIATION 



KARI. F. KELLERMAN, Chairman RAYMOND PEARL 



Physiolosist and Assista-nt Chief, Sureatt 

 of Plant Industry 



EDWIN W. ALLEN 



Chief,. Office of F.xpi>^-itnJ>yit Sl.af !■:>'■ :. 



CHARLES L. MARLATT 



Assistant Chief, Bureau of Entomology 



Biologist, Alaine Agricultural Experiment 

 Station 



H. P. ARMSBY 



Director, Institute of Animal Nutrition., The 

 Pennsylvania State Colleg*' 



E. 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. Kellerman, Journal of Agricultural Research, 

 Washington, D, C. 



All correspondence regarding articles from Experiment Stations should be 

 addressed to P^aymond Pearl, Journal of Agricultural Research, Orono, Maine, 



