

EDITORIAL COMMITTEE OF THE 



aNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMENT 



FOR THE ASSOCIATION 



KARL F. KELLERMAN, Chairman H. P. ARMSBY 



Physiologist and Associate Chief, Bureau 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Stations 



CHARLES L. MARLATT 



Entomologist and Assistant Chief, Bureau 

 of Entomology 



Director, Inslit^ite of Animal Nutrition, The 

 Pennsylvania Stale College 



E. M. FREEMAN 



Botanist, Plant Pathologist and Assistant 

 Dean, AgriciUlurol 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 State Experiment Stations should be 

 addressed to H. P. Armsby, Institute of Animal Nutrition, State College, Pa. 



