I.ETn^R OF TRAXSMITTAL. 



U. S. Departimext of Agriculture, 



Bureau of Plant Industry, 



Office of the Chief, 

 Wasliiiif/fon, D. T., Man ^« ^^05. 

 Sir: I have the honor to transmit herewith a technical paper 

 entitled "' The Variability of Wheat Varieties in Resistance to Toxic 

 Salts,'' and to recommend that it be published as Bulletin Xo. TO of 

 the series of this Bureau. 



This paper was prepared by Mr. L. L. Harter, Scientific Assistant 

 in the Laboratory of Plant Breeding, Vegetable Pathological and 

 Physiological Investigations, and was submitted b_v the Pathologist 

 and Physiologist with a view to publication. The subject-matter of 

 the !>ulletin will be of interest to experimenters who are working on 

 tlie problems of securing alkali-resistant strains of agricultural crops. 

 Respectfully, 



B. T. (talloway. 

 Chief of Bureau. 

 Hon. James Wilson, 



Secretary of Agriculture. 



