mm 



PUBLISHED BY AUTHORITY OF THE SECRETARY 

 OE AGRICUTTURE, WITH THE COOPERATION 

 OE 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 Experittient Stations 



CHARLES L. MARLATT 



Assistant Chief, Bureau of Entomology 



FOR THE ASSOCIATION 



RAYMOND PEARL 



Biohgiil, Maine Agricultural Experiment Station 



H. P. ARJklSBY 



Director, Instiliife of A nimal Nutrition, The Penn- 

 syliiania State College 



E. M. FREEMAN 



Botanist, Plant Pathologist, and Assistant Dean, 

 Agricultural Experiment Station of the Univer- 

 sity of Mmnciofa 



AU correspondence regarding articles from the Department of Agriculture 

 should be addressed to Earl 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, Orotio, Maine. 



