102 Rev. Mr 'Roherlson\ Anali/sis of the 



the water, when recent, gave a whitish precipitate, becoming 

 blue by exposure to the air, indicating iron in the state of prot- 

 oxide. 



With lime-water, the recent water gave a copious flocculent 

 precipitate, the lime uniting with the excess of the carbonic acid, 

 and the whole of the carbonates falling down together. This 

 precipitate was redissolved, on adding more of the mineral water, 

 which shewed a considerable excess of carbonic acid, and it was 

 also soluble with effervescence in dilute acetic acid. 



With the bi-carbonate of potash there was no precipitate, the 

 whole being kept dissolved by the excess of carbonic acid. 



With ammonia, and also with potash, a flocculent white pre- 

 cipitate took place, partly owing to the abstraction of free car- 

 bonic acid. With the carbonates of potash, soda, and ammonia, 

 there were similar precipitates, but more scanty, — they were all 

 soluble in a dilute acetic acid. 



With a solution of soap in alcohol, a great milkiriess. 



With acetate of lead, a considerable milkiness, and a precipi- 

 tate insoluble in acetic acid. 



With oxalate of ammonia, a considerable precipitate, indicat- 

 ing lime. 



With carbonate of ammonia and phosphate of soda, an imme- 

 diate milkiness, and a precipitate, after standing, indicating mag- 

 nesia ; the precipitate soluble in acetic acid. With carbonate of 

 ammonia or phosphate of soda, separately, no milkiness, after 

 standing for the same length of time. 



With muriate of baryta, a slight precipitate insoluble in mu- 

 riatic acid, indicating sulphuric acid. 



With nitrate of silver, a copious precipitate, white, while se- 

 cluded from the light, becoming rapidly purple on exposure to 

 light, indicating muriatic acid. 



Two ounces of the water, evaporated to dryness, gave, with 

 nitro-muriate of platinum, slight traces of potash. 



The water, very much concentrated by evaporation, gave, 

 with starch and sulphuric acid, no trace of iodine. 



From the above indications, it was concluded, that the water 

 contained sulphuric, muriatic, and carbonic acids, together with 

 protoxide of iron, Hme, magnesia, and a little potash. The 



