PEALE.] 



ANALYSES OF CALCAREOUS WATERS. 



389 



Spring No. 17. — This spring is situated on the main terrace at the 

 Mammoth Hot Springs. It measures 15 by 20 feet, and its white mar- 

 ble-like basin was filled with water of a tem^jerature of 165^ P., which 

 had a light blue color. 



Sulphuretted hydrogen gas appears to escape from the spring con- 

 stantly. 



When the bottle was opened a deposit of calcium carbonate was 

 noticed, and under the microscope was seen to consist of crystals of 

 calcite, of the form known as dog-tooth-spar. 



The water was alkaline. 



The following is the analysis : 



Grams to 

 litre. 



Grains to im- 

 perial gallon. 



Snlphnric a<;id 



Cbloiine 



Calcium 



MaEcnesinm 



Sodium 



Silica 



0.332 

 0.164 

 0.102 

 0.009 

 0.263 

 0.048 



0.918 



23. 240 

 11.480 



7.140 



.030 



18. 410 



3. 3fiO 



64. 260 



This may be arranged as follows : 



Grains to imperial gallon. 



Sodium sulphate 34. 370 



Sodium chloride 18. 900 



Calcium carbonate 17. 920 



Magnesium carbonate 2. 170 



Silica 3.360 



76. 720 



In the following table these analyses are compared with others in 

 which similar constituents are found. 



Spring. 



Cleopatra 



No. 17. 



Hot Sprinirs 



Location. 



Mammoth Hot 

 Sprinps, Yellow- 

 stone Park. 



Do 



flierapolis 



Arkansas 



Ladles' BoilerBath, BathCounty, Virginia 

 Hot Springs. ' 



Country. 



United States 



....do 



Asia Minor. 

 United States! Larkin 

 .do .. 



Analyst. 



LefEmann 



do 



J. L. Smith. 



LaEeine. 



Bagn^roB de Bigorre. 

 Gasteln 



France . 



Austria 



Hammam-Meschouten Algiers 



Ganderax 

 and Kosiero 



Wolf 



Braun 



13.49 

 18.90 



.0095 

 .144 



4.343 



3.452 

 29. 092 



17. 

 *1.40 i95. 

 4. 



9.10 



(5.505? 

 IK 759 5 



8.68 



2.87 



.153 



20. 



18. 02213. 078 



4.52 .191 

 800 2. 9C5 



