274 Analyfts of the Air. 
’ ver thus prepared 3 4" f minutes, yet it ab- 
forbed but two thirds of the quantity of air 
which it abforbed when there was no flan- 
nel in the receiver. 
The reafon of which difference in the 
quantities of elaftick air abforbed, appears 
from Experiment 106. where leaf! air was 
always abforbed in leaft receivers, which was 
the prefent cafe : For the flannel lining, be- 
fides the fpace it took up, could not be fo 
clofely adapted, but that there was left a full 
third of the capacity of the receiver, between 
the lining and the receiver : So that the 
Candle burnt in a bulk of air lefs by one 
third than the whole capacity of the receiver \ 
for which reafon lefs air alfo was abforbed. 
And wc may further obferve, that fince 
the Candle continued burning as long in a 
quantity of air, equal but to two thirds of 
the receiver, as in the whole air of the re- 
ceiver; this mufl: be owing to the SalTartar 
in the flannel lining, which muft needs have 
abforbed one third of the fuliginous vapours > 
which arofe from the burning candle. Hence 
we may not unreafonably conclude, that the 
pernicious quality of noxious vapours in the 
air might, in many cafes, be much rebated 
and qualified by the ftrongly abforbing power 
of Salts. Whether 
