BUREAU OF PLANT INDUSTRY. 



Chief of Bureau, Beverly T. Galloway. 

 Assistant Chief of Bureau, William A.Taylor. 

 Editor, J. E. Rockwell. 

 Chief Clerk, James E. Jones. 



Office of Farm Management. 



scientific staff. 



W. J. Spillman, Agriculturist in Charge. 

 D. A. Brodie, C. B. Smith, J. C. McDowell, C. L. Goodrich, J. W. Froley, David Griffiths, Byron Hunter, 



E. H. Thomson, James M. Johnson, J. S. Cotton, J. H. Arnold, G. A. Billings, Levi Chubbuck, H. R. 



Cox, M. A. Crosby, L. G. Dodge, J. A. Drake, A. D. McNair, H. A. Miller, A. G. Smith, and E. O. 



Wooton, Agriculturists. 

 J. S. Cates, L. W. Fluharty, C. E. Hoke, H. B. McClure, H. H. Mowry, F. D. Stevens, and D. W. Working, 



Assistant Agriculturists. 

 J. S. Ball, C. M. Bennett, Lillian Church, L. G. Connor, H. M. Dixon, W. C. Funk, H. N. Humphrey, 



W. R. Humphries, Oscar Juve, G. H. Miller, H. B. Munger, E. A. Stanford, and M. J. Thompson, 



Scientific Assistants. 

 Q. H. Benson, C. M. Hennis, A. B. Ross, H. G. Smith, and S. M. Tracy, Agents. 

 Ilena M. Bailey and Harry Thompson, Experts. 

 Charles Henry Thompson, Collaborator. 



Horticultural Investigations and Arlington Farm. 



scientific staff. 



L. C. Corbett, Horticulturist in Charge. 

 W. W. Tracy, sr., Superintendent, Vegetable- Testing Gardens. 

 E. C. Butterfield, Superintendent, Arlington Experimental Farm. 

 W. R. Beattie, Assistant Horticulturist. 



N. H. Grubb, D. N. Shoemaker, and William Stuart, Experts. 

 W. V. Shear, Assistant. 



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ADDITIONAL COPIES of this publication 

 -fi- may be procured from the Superintend- 

 ent of Documents, Government Printing 

 Office, Washington, D. C, at 15 cents per copy 



