[ 8 ] 
grs. Ib. oz. 
Again, 4 ounces of the fpirit of falt contain- 
ed in the receiver C afforded 242,7 grs. 
of felenite; and fince 100 grs, felenite 
contain 43 of ftandard vitriolic acid, 242,7 
contain - - ~ - 104. 
Confequently the r1lb. 10 0z. of fpirit of 
falt in the receiver C =186 ounces, con- 
tained of vitriolic ftandard - - 4852 
14lbs. of oil vitriol contained 14x 7000 - =g8000 
And fince too grs. of it contained, 88,3 
ftandard, g8000 grs. of it muft contain 
of ftandard - - - - 86534 
Deduct the quantity of ftandard that paffed 
into the receiver CG - - =4852 
There remained in the retort - - 81682 
Again, the quantity of common falt was 14 
pound, equal to - - - 98000 
And as 100 grs. common falt contain 53 of 
mineral alkali, the quantity of mineral 
alkaliin this experiment was 98000x 0,53, 
equal to = - - _ 51940 
To which, adding the ftandard vitriolic acid 
left in the retort; we have 5940x 81682 
equal the refiduum, equal 138474=19 12,5 
Vou. IW. M Which 
