U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF CHEMISTRY BULLETIN No. 91. 



H. W. WILEY, Chief. 



.MINERAL TOERS OF 



I. CLASSIFICATION AND METHODS OF ANALYSIS. 

 II. COMMEKCIAL WATERS. 

 III. SARATOGA WATERS SAMPLED AT SOURCE. 



BY 



J. K. HAYWOOD, 



Chief, Miscellaneous Laboratory, 



WITH THE COLLABORATION OF 



B. H. SMITH, 



Assistant Chemist. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE, 



1905. 





