EDITORIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMENT 



KARL F. KELLERMAN, Chairman 



Physiologist and Associate Chief, Bureau 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Stations 



CHARLES L. MARLATT 



Entotnologisi and Assistant Chief, Bureau 

 of Entomology 



FOR THE ASSOCIATION 

 H. P. ARMSBY 



Director, Institute of Animal Nutrition, The 

 Pennsylvania State College 



E. M. FREEMAN 



Botanist, Plant Pathologist and Assistant 

 Dean, Agricullural Experitnent Station of 

 the Unircrsily of Minnesota 



J. G. LIPMAN 



Director. Nevi Jersey Agricullural Experi- 

 ment Station, Rutgers College 



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. 



