EDITORIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMENT 



ICARIv F. KELLERMAN, Chairman 



Physiologisl and Associate Chief, Bureau 

 of Plant hitiustry 



EDWIN W. ALIvEN 



Chief, Office of Experiment Stations 



CHARLES E. MARLATT 



Evtomologist and Assistant Chief, B%treau 

 of Entomology 



FOR THE ASSOCIATION 

 H. P.,ARMvSBY 



Director, Institute of Anitnal Nutrition, The 

 Pennsyhan'ia 6'tofe College 



E. M. FREEMAN 



Botanist, Plant Pathologist and Assistant 

 Dean, Agricultural Experiment Station of 

 the Vnivcrsi'y of Minnesota 



J. G. LIPAIAN 



Director, New Jersey Agricultural Expert' 

 7nent Station, Rutgeri College 



All correspondence regarding artic^s from the DepailQient 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 Nutritioi-i ?^trtte College, Pa. 



