new Sulphur Sprijig at Harrogate. 85 



Oxalate of ammonia ; abundant precipitate. 

 Tincture of galls ~| 



Ferrocyanate of potash > No change. 

 Sulphocyanic acid J 



Carbonate of potash ; a precipitate. 

 Lime water; a precipitate. 

 Barytes water; slight precipitate. 



Acetate of lead ; very copious precipitate, of a dark 

 brown colour. 

 The precipitated carbonate of lead becomes quite black 

 when diffused through the recent water. 



Tincture of soap; an abundant curd. 

 Carbonate of ammonia caused no precipitate, nor did phos- 

 phate of soda; but, on applying these tests in succession to the 

 same portion of water, a considerable precipitate took place. 



By these tests it is shewn, that the water examined contains 

 sulphuretted hydrogen and carbonic acid gases, muriatic acid 

 in combination with lime, magnesia, and an alkali ; no sulphu- 

 ric acid, no iron. 



A wine pint of the water, previously boiled and filtered, 

 yielded, when treated with nitrate of silver, a white precipitate, 

 which, when washed with distilled water and dried, weighed 

 229.4 grains. 



The crystalline pellicle, which separated from a quart on 

 boiling, weighed 2.2 grains ; it entirely dissolved in acetic acid. 

 One quart of the recent water was boiled with subcarbonate 

 of soda; the precipitate, (22.7 gr.) well washed, and treated 

 with sulphuric acid. On digesting the sulphates in a few 

 drachms of water and again drying, the sulphate of lime re- 

 maining weighed, after ignition, 18.7 grs., equivalent to 7.7 

 lime, or 17.85 muriate of lime. 



The sulphate of magnesia, when evaporated and dried at a 

 heat approaching to redness, weighed 11.3 grains, equivalent 

 to 3.75 magnesia, or 10.75 muriate of magnesia. 



The mixture of salts (211 grains) was digested ia alcohol, to 

 separate the earthy muriates ; what remained was muriate of 

 soda. 



