LETTER OF TRANSMITTAL 



I". S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF CHEMISTRY, 

 Washington, D. <?., February 1, 1910. 



SIR: I have the honor to submit for your approval a manuscript 

 containing the results f an investigation made in this bureau on the 

 inlluem < of environment on the composition of wheat. These tri- 

 local experiments were instituted in 1905 as a special feature of the 

 environmental r lions of cereals, conducted in collaboration 



N\ ith the Office of Grain Investigations, Bureau of Plant Industry, the 

 part taken by the Bureau of Chemistry being in charge of the labora- 

 t>ry of Vegetable-Physiological Chemistry. Definite and important 

 results have been obtained. I recommend that this report of progress 

 he published as Bulletin No. 128 of the Bureau of Chemistry. 



Respectfully. 



H. W. WILEY, 



Chief of Bureau. 

 Hon. JAMES WILSON. 



retary of Agriculture. 



[Hull, ll's] 



(3) 



