C 4i ] 



SECT. IV. 



Method of Analyzing Mineral Waters (a). 



Qui autem ad obfervandum adjicit animum, ei etiam, in rebus 

 quae vulgares videntur, multa obfervatu digna oecurrunt. 



Bacon, de Augment. Scient, 



A&many fprings contain a volatile principle, 

 loon liable to be diffipated, it is neceflary 

 to make our experiments on the fpot, in order to 

 difcover the contents of fiich waters. Various 

 as thefe contents may appear, the apparatus pro- 

 per to detect them, may be reduced into a fmall 

 compafs. 



When we purpofe to examine any mineral or 

 medicinal fpring, the foil and face of the coun- 

 try mould be confidered, the ftony or mineral 

 appearance, and particularly whether there arc 

 any mineral veins : the degrees of heat of the 

 water mould be afcertained bv a thermometer, 

 and its comparative weight to other fprings in 



(a) Wallerius in his Hydrologia, Lewis in his notes on Neu- 

 mann's Chemiltry, with Rutty, Lucas, Falconer, Monro, Pear- 

 fon, Garnett, and other Engliih writers, have given directions 

 on thisfubjeft, which fome late chemical writers on the continent 

 have further elucidated, as Wiegleb, Bergman, Strachling, Struve, 

 Weltrumb, and Gottling. 



G 



the 



