U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF CHEMISTRY BULLETIN No. 91. 



H. W. WILEY, Chief. 



I. CLASSIFICATION AND METHODS OF ANALYSIS. 

 II. COMMERCIAL 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. 



