LETTER OF TRANSMITTAL. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF CHEMISTRY, 

 Washington, D. C., February 11, 1911. 



SIR : I have the honor to transmit for your inspection and approval 

 a manuscript prepared in the Miscellaneous Division of the Bureau 

 of Chemistry reporting the results of an investigation of the character 

 of American mineral waters. This work was performed by your 

 authority in cooperation with the Hydrographic Branch of the United 

 States Geological Survey. I recommend that this report be published 

 as Bulletin No. 139 of the Bureau of Chemistry. 



Respectfully, H. W. WILEY, 



Chief of Bureau . 

 Hon. JAMES WILSON, 



Secretary of Agriculture. 



