^^i 



','>?J 



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 Stoiiont 



CHARLES L. MARLATT 



Entomologist and Assistant Chief. Bureau 

 of Enlomologf 



]fOR THE ASSOCIATION 

 H. P. ARMSBY 



Director, Institute of Anitwd Nutrition, The 

 Pennsylvania State College 



J. G. LIPMAN 



Director , New Jersey A gricuUural Experitaet^ 

 Station, Rutgers College 



W. A. RILEY 



Entomologist and Chief, Drrision of Ento- 

 mology and Economic Zoology, Agricul- 

 turol Experiment Station of ti* Unioertity 

 of Minnesota 



All correspondence regarding ai1:icles 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. 



