LETTER OF TRANSMITTAL. 



U. S. Department of Agriculture, 



Bureau of Soils, 

 Washington, D. 6\, July 29, 1921. 

 Sir : Under the cooperative agreement with the Towa Aji^ricultural 

 Experiment Station, C. V. Curtiss, director, a soil survey of Wright 

 Coiint}"^ was carried to completion duriiii!; the field season of 1919. 



I liavc the honor to transmit herewith the manuscript and map 

 covering this work and to recommend their publication as advance 

 sheets of Field Operations of the Bureau of Soils for 1919, as author- 

 ized by law. 



Respectfully, 



Milton Whitney, 



Chief of Bureau. 

 Hon. H. C. Wallace, 



Secretary of Agriculture. 

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