SALT IN SOLUTION. W 



I I to57°-5 C. (lll°-2 to 135°-5 F.)j one of the 

 springs at Burtscheid near Aix-la-Chapelle is 

 even as high as 77°-5 C. (171°-5P.)j tnat of 

 Baden in Aargau is at 64° C. (147°'2 P.) ; of 

 Aix les Bains in Savoy at54°-3 C. (130°-74 P.); 

 Mehadia in Hungary, 53° C. (127°'4 !.)» Ba- 

 reges, 40° C. (104° P.); Baden, near Vienna, 

 29°-57 C. (83°-75 P.) ; while the sulphur-bath of 

 Nenndorf is only 10° C. (50° P.), and Ben- 

 theim 10° C. 



Neither is the quantity of salt contained in 

 springs proportional to their heat. The tem- 

 perature of several brine-springs, that are nearly 

 saturated, is only a very few degrees above that 

 of the ground, while the famous hot wells of 

 Wiesbaden, at 70° C. (158° P.), and of Baden- 

 Baden, at 67°-5 C. (153°-5 P.), are by no means 

 remarkable for their richness in salt. Common salt 

 too, by reason of its very general distribution over 

 the earth, is one of the most usual constituents of 

 mineral waters. Glauber's salt (sulphate of soda) 

 is more seldom present in great quantity ; however 

 it is so in the well-known "Sprudel" of Carls- 

 bad, at 75° C. (167? P.) j in the springs of Bath 

 at 46°-25 C. (115°-25 P.) ; of Lavey, in the 

 Canton of Vaud, at 45° C. (113° P.) ; of St. Ger- 

 vais, in Savoy, at 41°-25 C. (106°-25 P.); Ma- 

 rienbad, in Bohemia, 12° C. (53°-6 P.) ; &e. 

 Springs that contain alkalies, especially car- 



