ike Mineral IVaters of Dunllane and Pitcaithly. 2/3 



terniixture of surface-water, or of the water of other springs. 

 When taken up after continued dry vveatiier, it afforded, by eva- 

 poration, 42 grains of solid matter from a pint; the other af- 

 fording-, at the same time, 47 grains. Its specifie gravity was 

 found to be 1-004! 9. It was in this state, the strongest in 

 wliich it was found, that it was sul)mitted to the following ex- 

 amination. 



The application of reagents produced the same appearances 

 }}s with the water of the North Spring, indicating, therefore, the 

 presence of the same ingredients. To determine this v/ith more 

 precision, and to ascertain the proportions, the same methods 

 of analysis were employed which had been used with regard to 

 the other. It will be sufficient to state the results by one me- 

 thod, — the second of those before described. 



A pint of the water was submitted to evaporation, and af- 

 forded of dry matter, weiglied while warm, 42 grains. This 

 was redissolved in distilled water. There remained undissolved 

 a portion, which, when thoroughly dried, weighed 2*5 grains. 

 This suffered a very slight effervescence with muriatic acid, si- 

 milar to that excited in the insoluble matter of the water of the 

 North Spring; a similar thin crust, too, had formed on the sides 

 of the glass capsule, which was removed with effervescence by 

 a drop of muriatic acid. Tiie relative proportions, therefore, 

 of sulphate and carbonate of lime may be regarded as the same : 

 and the insoluble residue will thus consist of 0*3 of carbonate, 

 and 2*3 of sulphate, of lime. Bv precipitation by muriate of 

 barytes, from another pint of the water similar results were ob- 

 tained. 



To the clear liquor, oxalate of ammonia was added as long 

 as it produced any tur])id appearance. The precipitate collected 

 and dried, being converted b>' calcination into carbonate of lime, 

 afforded, when acted on by muriatic acid, 16 grains of dry mu- 

 riate of lime. 



The solution poured off from the precipitate was evaporated 

 to dryness, and the dry mass was exposed to a heat gradually 

 raised to redness, until it geased to exhale any vapour. The 

 muriate of ammonia formed by the action of the oxalate of am- 

 monia on the muriate of lime, was thus expelled, and the mu- 

 riate of soda of the water remained. It weighed 22'5 grains. 



The results, tiien, by this method, are from a pint of the water. 



Muriate of soda 22*5 grains. 



Muriate of lime IG 



Sulphiite of lime 2*3 



Carbon:itc of lime . . . . , . 0-3 

 Oxide of iron 0'15 



41-25 

 Vol.46. No. 210. Oct, 1815. S The 



