LETTER OF TRANSMITTAL FOR REVISED EDITION. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF CHEMISTRY, 



Washington, D. C., April 20, 1908. 



SIR: At the twenty-fourth annual convention of the Association 

 of Official Agricultural Chemists the following resolution was passed 

 in regard to the report of the committee on the revision of methods, 

 submitted for approval as Bulletin 107 of the Bureau of Chemistry: 



Resolved, That the report of the committee on revision, as submitted, be approved 

 and the committee continued, with the authority to issue the final revision and to 

 make such additional changes as they deem necessary, with the approval of the 

 executive committee. 



In accordance with these instructions, Bulletin 107, revised, here- 

 with, is submitted for publication, additional changes as suggested 

 by the association having been made with the approval of the execu- 

 tive committee, and all action in regard to methods taken at the 

 meeting of 1907 having been incorporated. 

 Respectfully, 



H. W. WILEY, 

 Secretary, Association of Official Agricultural 



Chemists; Chief, Bureau of Chemistry. 

 Hon. JAMES WILSON, 



Secretary of Agriculture. 



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