C 53* 3 
It appears by this Table that all Liquors, and like- 
wife the Mercurjr are able to be condented and rare- 
fy*d in cold and hot weather. 
For the quantity of the Volatil Acid Salt contained 
in the Acid Liqnors, M, Homberg declared firft wh^t he 
intends by this Salt, and toid us, the Acid Spirits were 
no other thing but a Salt diflblved by a little water, 
which the tafte Qiews well enough for an acid, as alfo 
his effeds, he calls it Volatile, becaufe it is raifed 
by the fire with the. Phlegm, and it cannot be but 
hardly feparated from that, and reduced in a dry form: 
what neverthelefs M. Homherg has made in the operati- 
on inferted in the Memoirs of the Royal Academy,pub- 
lifhed tbe 15th of December 1692. by what operation it 
appears that the acid fpirits are nothing but volatil acid 
fait and phlegm. The quantity of fait contained in 
a determined quantity of acid fpirit was not yet known, 
but he has given a way to know it, and alfo he may 
fay the quantity ot fait contained in whatever acid fpi* 
rit, only by the weight of volume, compared with 
the weight of another Ipirit, of which the quantity 
of falc contained in it was known, Firft, for know- 
ing the quantity of volatile acid fait contained in fome 
acid fpirits,he has poured upon an ounce of fait of Tar- 
tar well dryed the quantity of one acid fpirit, as much 
^s the (alt of Tartar has been able to take of it, then 
he evaporated all the infipid humidity or Phlegma 
out of this fait, and be weighed the matter, the 
quantity of his weight, above the weight of the fait 
of Tartar before faturation, is the quantity of acid 
volatile fait contained in the quantity of add fpirit 
which has been taken by one ounce of fait of Tar- 
tar. Here is the Table of the quantity of acid that has 
been neceflary to the perfeft impregnation and fulnefs 
of the fait of Tartar, and by the fame means the Table 
of the quantity of acid Volatile Salt, contained in one 
ounce of feveral acid fpirits. Fbr 
