OFFICERS, REFEREES, AND COMMITTEES OF THE ASSOCIATION 

 OF OFFICIAL AGRICULTURAL CHEMISTS FOR THE YEAR 1908-9. 



President. 

 W. D. BIGELOW, Washington, D. C. 



Vice-presiden t . 

 W. A. WITHERS, Raleigh, N. C. 



Secretary. 



H. W. WILEY, Washington, D. C. 

 Additional members of the executive committee. 



E. F. LADD, Fargo, N. Dak. 



E. B. HOLLAND, Amherst, Maas. 



Referees. 



Phosphoric add: W. F. Hand, Agricultural College, Miss. 

 Nitrogen: 



Determination of nitrogen: C. H. Jones, Burlington, Vt. 



Separation of nitrogenous bodies: P. F. Trowbridge, Columbia, Mo. (meat pro- 



teids). 



Potash: B. B. Ross, Auburn, Ala. 

 Soils: S. D. Averitt, Lexington, Ky. 

 Dairy products: J. M. Bartlett, Orono, Me. 

 Foods and feeding stuffs: J. P. Street, New Haven, Conn. 

 Food adulteration: H. E. Barnard, Indianapolis, Ind. 

 Sugar: A. H. Bryan, Washington, D. C. 

 Tannin: F. P. Veitch, Washington, D. C. 

 Insecticides: C. C. McDonnell, Washington, D. C. 

 Inorganic plant constituents: F. W T . Robison, Lansing, Mich. 

 Medicinal plants and drugs: L. F. Kebler, Washington, D. C. 

 Water: J. K. Haywood, Washington, D. C. 



Associate referees. 



Phosphoric acid: H. D. Haskins, Amherst, Mass. 

 Nitrogen: 



Determination of nitrogen: J. W. Kellogg, Harrisburg, Pa. 

 Separation of nitrogenous bodies: 



Milk and cheese: G. E. Patrick, Washington, D. C. 

 Vegetable proteids: R. Harcourt, Guelph, Canada. 

 Potash: 



E. L. Baker, Geneva, N. Y. 



Jas. A. Bizzell, Ithaca, N. Y. (special associate referee on available potash). 



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