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. KELIvERMAN, Chairman RAYMOND PEARL 



Physiologist and Assisl^^nt Chief, Bureau Biologist, Maine AgricuUural Experiment 



of Plant Industry 



EDWIN W. AtLEN 



Assistatit Director. Office of Exf>eriment 

 Stations 



CHARLES L. MARLATT 



Assistant Chief, Bureau of Entomology 



Station 

 H. P. ARMSBY 



Director, Institute of Animal NutrUitn, The 

 Pennsylvania Slate College 



E. M. FREEMA^J 



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 Raymond Pearl, Journal of Agricultiual Research, Orono, Maine. 



