''Ai;' 



W^'^'^j. 



EDITOJRIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMENT 



KARL F. KELLERMAN, Chah^man 



Physiologist and Associate Chief, Bfireau 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Stations 



I • 



CHARLES L. MARLATT 



Entomologist and Assistant Chief, Bureau 

 of EntotHoiogy 



FOR THE ASSOCIATIOSr 

 J. G. LIPMAN 



Director, New Jersey A oricuUural Etperiment 

 Station, Rutgers College 



W. A. RILEY 



Entomologist and Chief, Division of Ento- 

 Ttwlogy and Economic Zoology, Agricul- 

 turcl Experiment Station of the University 

 of Minnesota 



H. P. ARMSBY 



Director, 'Institute of Anianal Nutrition, The 

 Pennsylvania State College 



All correspondence regarding articles from the Department of Agriculture should be 

 addressed to Karl F. Kellerman, Joiamal of Agricultural Research, Washington, D. C. 



All correspondence regarding articles from State Experiment Stations should be 

 addressed to J. G. Lipman, New Jersey Agricultural Experiment Station, New 

 Brunswick, N. J. 



