ANALYSES OF ARTESIAN WATERS. 



537 



Mr. C. F. Sidener' and Prof. William A. Noyes." No. 2 was analyzed by 

 Mr. G. Christian Hoffman,'' and Nos. 8 and 9 by Mr. Frank D. Adams,* of 

 the Geological Survey of Canada. The hardness of these waters, when 

 noted, is in degrees of Wanklyn's scale. 



1. Brine from the artesian well at JSumboldt, Minn. (page% 74-76). 



Ingredients diaaolved in the water. 



Silica 



Alumiua 



Carbonate of iron 



Sulphate of lime 



Sulphate of magnesia . 

 Carbonate of magnesia 

 Chloride of magnesium 

 Chloride of calcium . . . 

 Chloride of potassium . 

 Chloride of sodium. . . . 

 Phosphoric acid 



Total 



208.5 



40.9 



18.5 



1, 990. 2 



1, 236. 4 



1, 347. 5 

 1, 567. 6 



2, 684. 

 724.3 



47, 402. 5 

 Traces. 



57, 220. 4 



Percent- 

 age. 



0.4 

 0.1 



3.5 

 2.1 

 2.4 



2.7 

 4.7 

 1.3 



82.8 



Grains per 

 gallon. 



12.15 



2.38 



1.08 



116. 08 



71.12 



78.60 



91. 44 



156. 55 



42.26 



2, 764. 99 



100. 3, 336. 65 



The proportion of common salt in the total dissolved solids of this 

 water is 82.8 per cent, or about five-sixths. ."This gives it," as Prof. N. H. 

 Winchell remarks, "more than the average per cent of chloride of sodium 

 found in the Michigan brines, while the total solid matter in solution is 

 only from one-third to one-half as much.'"^ 



'Geol. and Nat. Hist. Survey of Minnesota, Thirteenth Annual Report, pp.43, 98, 101, 102 (Nos. 1, 

 10, and 11); and Fourteenth Annual Report, p. 345 (No. 4). Am. Geologist, Vol. VI, p. 218 (No. 3). 



^Geol. and Nat. Hist. Survey of Miuuesota, Eleventh Annual Report, pp. 172-175 (Nos. 5, 6, 7, 

 and 12). 



^Geol. and Nat. Hist. Survey of Canada, Annual Report, new series. Vol. I, pp. 13-15 M. 



'Ibid., Report of Progress for 1878-79, pp. 8-11 H. (Reduced to refer to United States standard 

 gallon. Compare pp. 7-12 C.) 



'Geol. and Nat. Hist. Survey of Miunesota, Thirteeuth Annual Report, p. 43. 



