LETfER OF TRANSMITTAL. 



U. S. Department of Agriculture, 

 Division of Vegetable Physiology and Pathology, 



Washington, D. C, June 2Jf, 1901. 

 Sir: I have the honor to transmit herewith several papers on Some 

 Mutual Relations between Alkali Soils and Vegetation, prepared by 

 Mr. Thomas H. Kearnej^, of this Division, who was detailed to the 

 work at the request of the Chief of the Division of Soils, and Dr. 

 Frank K. Cameron, of that Division, and respectfully recommend 

 their publication as Report No. 71 of the Department. The studies 

 so far made in connection with the work discussed in these papers 

 have brought to light some important facts and have opened lines of 

 inquiry which promise to develop methods of dealing with alkali soils 

 that will reduce their injurious effects on crops grown where such 

 soils exist. 



Respectfully, 



Albert F. Woods, 



Chief of Division. 

 Hon. James Wilson, 



Secretary of Agriculture. 



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