[ge ‘] 
Thus -.» Ingredients employed. Products obtained. 
lbs. Ibs. oz. 
' Oil of vitriol - 14 | Spirit of falt inthe receiverC - 11 10 
Common falt - 14. | Condenfed vapours of do. in bottles 3. 10 
Water - 7 Refiduum in the retort - = - 19 4 
Total - Val Total - ee 5 
we Lofs = — 8 
28 te 
Hence it is plain that 7 lbs. of water were difperfed among 
all the produts. 
To difcover the relative ftrength of the marine acid in the dif- 
ferent receivers Mr. Woulfe made the following experiments : 
First, 4 ounces oh bil of vitriol, whofe weight was to that of 
water as 24 to 13, faturated 11b. 1002. 7 drs.=11566 gts. of a 
fixed alkaline folution, which ferved as a teft, and which I fup- 
pofed to have been formed of vegetable alkali. 
’ 
3 
SeconDLy, 4 ounces of the fpirit of falt in the receiver C fa~ 
turated 12,5 of that alkaline folution. 
THIRDLY, 4 ounces of the-condenfed vapours, that is, a quan- 
tity of water which contained fo much condenfed vapour, fatu- 
rated 38 ounces of. the alkaline folution. 
FourRTHLY, 
