MINERAL WATERS OF THE UNITED STATES. 



and the total weight gives strontium sulphate. (To determine abso- 

 lutely that strontium had been dissolved out and not calcium the small 

 amount of hydrochloric acid extract was evaporated to a small volume 

 and tested with the spectroscope. It occasionally happened that this 

 very minute residue was ^veighable and }^et consisted of calcium only, 

 which had not been completely washed out.) 



II. COMMERCIAL WATERS. 



CHEMICAL COMPOSITION OF MISCELLANEOUS WATERS BOUGHT 

 ON THE OPEN MARKET. 



In the following tables are given the analyses of the leading springs 

 of the United States the waters from which could be conveniently 

 bought on the open market, together with the anaryses advertised by 

 the spring owner, or where these could not be obtained, the analyses 

 given in Crook's Mineral Waters of the United States. The column 

 in the tables headed "Bureau of Chemistry" gives the composition of 

 the water as determined by the authors; the column headed " Adver- 

 tised" contains the composition advertised by the spring owners; the 

 column headed " Crook" records the analysis given in Crook's Mineral 

 Waters of the United States; the column headed " Total inorganic 

 material in solution " gives the percentage amount of each ion as found 

 by the authors; and the c'olumn headed "Amount of water used for 

 each determination" gives the amount of water used by the authors 

 for each test. Under the caption "Hypothetical form of combination" 

 is given the number, both in parts per million and in percentage, of 

 ions combined in the form of salts as calculated from the authors' 

 analysis. 



No. 688. Poland Water, South Poland, Me. 



[Calcic bicarbonated alkaline.] 



Gases (number of cubic centimeters per 1,000 grams at C. and 760 mm pres- 

 sure). Carbon dioxid (free), 5.6; carbon dioxid (set free from bicarbonates on evap- 

 orating to dryness), 8.8. 



