2"6 2 Of Salts in Mineral Waters . 
becomes the Vehicle of Salts, and conveys 
them into the Pores of Bodies, where it 
leaves them to execute their proper Office. 
Moll Sorts of Animal and Vegetable Salts 
are likewife probably diffolved by the Juices 
of the Stomach, before they enter the Blood, 
or they would occaiion great Mifchiefs : and 
the Difficulty of diffolving fome mineral 
Salts , or breaking off their Points in the 
fame Manner, may be the Reafon of their 
dreadful Effects. 
CHAP. XLIX. 
Of Salts in Mineral Waters . 
T H E Microfcope may be of lingular Ser¬ 
vice to determine, by ocular Exami¬ 
nation, what Kinds of Salts our medicinal 
Springs are charged with ; whence to form 
a judgment in what Cafes their Waters 
Biay be drank to Advantage. 
The four Kinds oifafile Salts bed: known 
are, according to Dr. * Lister, Vitriol, 
Alum, Salt-petre, and Sea-falt : whereto 
he adds a fifth, lefs known, though more 
f Vid. Lister, de Fontibus Medicatis Anglhe. 
common 
