( 37 ; 



of them, contain powder of lime*fl:one, and the 

 mineral acids of vitriol, nitre, and fea-falt, united 

 in various proportions. Thefe waters arc like- 

 wife tainted wi^h an oilinefs, v^hich gives them a 

 remarkably yellcwifli caft, when com.pared with 

 pure diftiiled water. It is reafonable to think, 

 that waters impregnated with fuch adlive fub- 

 ftances, in a quantity fufficient to render them 

 difagreeable to the tafte, cannot always be drunk 

 with impunity. They have accordingly been fuf- 

 pecled of occafioning pains in the flomach and 

 bowels, glandular tumors and coflivenefs, where 

 the fimple lime-ftone prevails ; and diarrhoeas, 

 v/here much of it is united with the folution of a- 

 cids"; and it is probable, that a continued ufe of 

 fuch water may be the caufe of many other dif- 

 orders, efpecially to the infirm, and to children. 

 Froai whence it follows, that a change of place 

 may often be of as much ufe to weak perfons, 

 from the change of water, as of air. 



Some obfcure notion of the unwholefomenefs 

 of pump water, induces many perfons to boil it, 

 and let it fland to grow cold j by which it 

 will indeed be made to part from mod of its un- 

 neutralized lime-ftone and fdenite -, but at the 

 iame time it will become more ftrongly impreg- 

 nated 



