EDITORIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AKD 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOa THE DEPARTMENT 



KARL F. KELLERMAN, Chairman 



Physiologist and Associate Chief, Bureau 

 of Plant Industry 



EDWIN W. AXLEN 



Chief, Office of Experiment Stations 



CHARLES L. MARLATT 



Entomologist and Assistant Chief, Bureau 



of Entomoloff^y 



FOR THE ASSOCIATIOW 



H. P. ARMSBY 



Director, Institute of Animal Nutrition, Th» 

 Pennsylvania State CoUeoe 



E. M. FREEMAN 



Botanist. Plant Pathologist and Assistant 

 Dean, Agricultural Experiment Station (^ 

 the University of Minnesota 



J. G. LIPMAN 



Director, New Jersey A ffricttlfural Bxptriment 

 Station, Rutgers Collet 



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 ehould be 

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



