LETTER OF TRANSMITTAL. 



U. S. Department of Agriculture, 

 Division of Vegetable Physiology and Pathology, 



Washington, D. C, July 19, 1900. 

 Sir: I have the honor to transmit herewith, and to recommend for 

 publication as Bulletin No. 24 of this Division, the manuscript of a 

 paper by Mr. M. A. Carleton, on The Basis for the Improvement of 

 American Wheats. During the past ten years this Division has had 

 under investigation a number of problems connected with cereal pro- 

 duction, and in order to carry on this work intelligently it has been 

 necessary to make a careful study of the wheat industry generally. 

 To this end a thorough survey of the field has been made, and the 

 results are brought together here. The bulletin will prove especially 

 valuable as showing the lines along which further work must be 

 carried on. Part of this work is already under way, and other lines 

 will be taken up as rapidly as the means at hand will permit. 

 Respectfully, 



B. T. Galloway, 



Chief of Division. 

 Hon. James Wilson, 



SeOi etary of Agriculture. 



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