[ 83 ? 1 
A Solution of Saccharum Saturni , mixt with the 
Water, yields th z Magifierium Saturni. 
All the above-mentioned Experiments certify, that 
our Mineral Water contains no alcaline nor acid Saif, 
no Iron , Copperas , or Brimjlone : Therefore from the 
fame Experiments it is evident, that the Chiltenham 
Water confifts of a Sal medium fixwn vel neutrum, 
and a di Solvable Terra alcalina vel cretacea, which 
may be Dparated. 
By a Sal medium, is to be underftood, a Salt being 
neither of an alcaline nor an acid Nature ; and that will 
not precipitate any Solution made with fuch Salts, nor, 
mixt with the Syrup of Violets, will change its Colour. 
Thefe neutral Salts have always their Origin from 
an alcaline and an acid Salt ; and, according to the 
alcaline Salt they meet with, fo they are qualified. 
So we have the Tartarus vitriolatus, confiding of 
the Sal alcali fixum , and Acidum vitriolicum. 
The Arcanum duplicatum of the Sal alcali , Salt- 
petre, and Acidum vitriolicum. 
The Sal Mirabile Glauber i, confiding of 
common Salt, and its Terra fiuxilis, and an Acidum 
vitriolicum but with this Difference, that the Sal 
Mirabile will foon melt in a Crucible with a gentle 
Fire but Tartarus vitriolatus, Arcanum duplicatum , 
&c. will not melt, even with the ftrongeft Heat, bc- 
caufe of the Difference of the Earth in the alcaline 
Salt, which in the common alcaline Salt is very fixt, 
but in the common Salt very volatile and fufible. 
Such a Sal medium as the Sal mirabile , we find in 
this Mineral Water, yet mixt with fome common Salt. 
As for the Bitternefs of this Water, there is no other 
Reafon for it than the TerraCretacea , which is proved 
b y 
