370 



Mineral Waters of Canada. 



with traces of alumina and iron ; a large portion of the lime and 

 magnesia were not precipitated by boiling. The carbonic acid 

 was determined by the aid of chlorid of calcium and ammonia. 

 For the sulphuretted hydrogen, three bottles were prepared by 

 adding a solution of chlorid of arsenic ; to each of these was 

 added 30 cubic inches of the water ; the whole was then agitated 

 and allowed to stand a few minutes to permit the escape of car- 

 bonic acid, after which the bottles were carefully corked and 



sealed. This was done at the spring, and the bottles were then 



transported to the laboratory. When they were opened, the 

 precipitate was collected on carefully weighed filters, dried at 

 212° F., and weighed. Its purity was determined by its com- 

 plete solution in ammonia. From the average of these three, the 

 weights closely agreeing, the amount of the sulphuretted hydro- 

 gen was calculated to be -17763 parts to 1000 by weight, or 116 

 cubic inches to 100 cubic inches of the water. 



To determine the state in which the sulphur existed, a portion 

 of the water was digested for some time with pure magnesia and 

 then boiled, carefully excluding the air; sulphuretted hydrogen 

 was abundantly evolved, and after a few minutes not a trace of 

 sulphuret could be detected in the liquid. This shews the sulphur 

 to exist as sulphuretted hydrogen, and not%s a fixed sulphuret. 



The amount of carbonic acid in the water was found to equal 

 •273 parts in 1000 of the water by weight. 



1000 parts of the water gave 

 Sulphuric acid, 

 Chlorine, 

 Potash, 

 Soda, 

 Lime, 

 Magnesia, 

 Carbonic acid, . 

 Sulphuretted hydrogen, 



1-22939 

 •06478 

 •02760 

 •20586 

 •64484 

 •19436 

 •27300 

 •17763 



These may be combined to give the following composition for 

 1000 parts : 



Sulphate of potash, . 



of soda, 

 of lime, 

 of magnesia, 

 Chlorid of magnesium, 

 Carbonate of lime, . 



it 



of magnesia, 

 " of iron, 



Sulphuretted hydrogen, 

 Carbonic acid, 

 Water, 



•05103 



•47182 



1 12670 



•43510 



•08783 



•30500 

 •01798 

 traces. 

 •17763 

 •15350 

 99717341 



1000-00000 

 Amount of solid matter by calculation, 2-49446 parts. 



