Chap. 8.] Waters. 523' 



of the other fprings, and does not fo foon lofe its gas. 

 It is in its mod perfeft and natural (late in cold, dry 

 weather. It then appears colourlefs, tranfparent, and 

 without fmell, and has a fubacid chalybeate tafte, witfi 

 an agreeable fmartnefs : at fuch times, if it is taken 

 out of the well in a glafs, it does not fparkle ; but 

 after Handing a while, covers the glafs on the iniide 

 with fmall air bubbles ; but if it is fhaken, or poured 

 out of one glafs into another, it then fparkles, and 

 difcharges a great number of air-bubbles at the fur- 

 face. In warm, moift weather, it lofes its tranfpa- 

 rency, appears turbid or wheyifh, contains lefs fixed 

 air, and is partly decompofed. A murmuring noife 

 alfo is fometimes heard in the well. It is colder than 

 the heat of the atmofphere by many degrees. It is 

 fuppofed to contain the greateft quantity of fixed air 

 of almoft any acidulous water j and confequently has 

 a remarkable fprightlinefs and vinofity, and boils by 

 mere warmth. This, however, foon flies off, if the 

 water is left expofed j though in well corked bottles 

 it is in a great meafure preferved. It is capable of 

 diflblving more irqn than it naturally contains, and 

 thus becoming a ftronger chalybeate. This is owing 

 to the great quantity of fixed air which it contains. 

 For the fame reafon an ebullition is railed in this water 

 on the addition of acids, as they difengage its fixed air. 

 It mixes fmoothly with milk, whether it is cold or of 

 a boiling heat. 



( Of the Satminiere water, a gallon- yields 6.5 grains 

 of chalk, 4.5 of magnefia, two of mineral alkali, 3.5 of 

 kali, 2. 2 of aerated iron,and 108 ounce meafures of fixed 

 air. At the well it has fomewhat a fmell of iulphur. 



c Grcijbeeck. The water is of the fame nature as 

 the Sauvin;ere, but contains a fomewhat larger pro- 

 portion of the feveral ingredients. It has a vitriolic 

 tafte, and fomewhat of a fulphureous fmell. 



