PUBLISHED 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 



KARL F. KELLERMAN, Chairman 



Physiologist and Assistant Chief, Bureau 

 , of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Stations 



CHARLES L. MARLATT 



Assistant Chief, Bureau of Entomology 



FOR THE ASSOCIATION 

 RAYMOND PEARL 



Biologist, Maine Agricultural Experiment Station 



H. P. ARMSBY 



Director, Institute of Animal Nutrition, The Penn- 

 sylvania State College 



E. M. FREEMAN 



Botanist, Plant Pathologist, and Assistant Dean, 

 Agricultural Experiment Station of the Univer- 

 sity 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 Agricultural Research, Orono, Maine. 



