LETTER OF TRANSMITTAL. 



U. S. DEPARTMENT or AGRICULTURE, 



BUREAU OF CHEMISTRY, 

 Washington, D. C., June 12, 1911. 



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

 prepared by J. F. Breazeale and J. A. Le Clerc, plant physiological 

 chemists, of this bureau, on the growth of wheat seedlings as affected 

 by acid and alkaline -conditions. Although the results herein re- 

 corded were obtained from experiments conducted in water cultures, 

 it is believed that their interpretation may be directly applied to 

 practical agriculture. I recommend the publication of this manu- 

 script as Bulletin No. 149 of the Bureau of Chemistry. 



Respectfullv, 



H. W. WILEY, . 



Chief of Bureau. 

 Hon. JAMES WILSON, 



Secretary of Agriculture. 

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