[ 8?z ] 
of any Acid , turns red, and, with an alcaline Salt,, 
green b but, mixt with this Water, keeps its Colour. 
Oleum Tart art per \ Deliquium , which is an alcaline 
Salt, diflolved in Water: And, 
Spiritus Salts Armoniaci, a volatile alcaline Salt 
in Water, they being mixt with this Mineral Water, 
the Mixture grew milky, and a little after a white 
Precipitate fettled. This happens when a fixed or a 
volatile alcaline Salt meets with a neutral Salt ; then 
they join together, and fomewhat of the alcaline 
Earth falls down. 
Milk mixt with a Mineral Water, and boiled in 
equal Proportion, will make a Separation, by meet- 
ing with either an acid or alcaline Salt ia it, or, by 
finding of the laft Salt, the Mixture will change red; 
but our Mineral W ater may be boiled with it in feveral 
Proportions, without any Change or Precipitation. 
According to thefe Experiments, there is no acid 
Salt in this Water. 
To fee whether there is no Iron or Copperas in it. 
If the Solution of Galls is mixt with any Liquor, 
and grows black, then it is a Sign of Iron or Cop- 
peras ; but out Mineral Water, mixt with it, turned a 
little brownifh, becaufe of the Salt in the Water. 
To know whether there is any Brimflone in a Mi- 
neral Water, it is to be inquired with a polifhed 
Piece of Silver, which, being put in the Water, will 
turn black or yellowifh; but this did not happen with 
this Water. 
To find out the acidum falinum in a Mineral Wa- 
ter, you muft mix with it Solutio Argentic which 
turns inftantly white , and a light Precipitate falls, be- 
ing the Luna Cornea , 
A 
