Anal^fis of the Air. 307 
of the fumes as in the firft cafe 5 bccaufe here 
the fulphureous fumes were much blended 
with watry vapours : For we find in Experi- 
ment 97, that fix times more was wafted in 
fumes in this cafe than in the other 5 and there- 
fore probably a good part of the cubick inch of 
water afcended with the vapour, and might 
thereby weaken its abforbing power : For 
watry vapours do not abforb elaftick air 
as the fulphureous ones do 5 tho' by Experi- 
ment 120 ,a Candle abforbed more in a damp 
than in a dry air. 
And’tis from thefe diluting watry vapours 
that filings of Iron with Spirit of Nitre and 
Water, abforbed lefs than with Spirit of Nitre 
alone, for in both cafes it abforbs more than 
it generates. 
Thus alfo oil of Vitriol and Chalk ge- 
nerate air, their fume being fmall, and that 
much diluted wiih the watry vapours in the 
Chalk. 
But Lime with oil of Vitriol, or White- 
Wine Vinegar or Water, make a confiderable 
fume, and abforb good quantities of air: 
Lime alone left to (laken gradually, as it 
makes no fume, fo it abforbs no air. 
We fee in Experiment 92, where the fer- 
X 2 ment 
