[ 44 ] 
One of the wards allotted for the women had a fmall 
room adjoining to it, in which they ufually flept. Both 
places feem d at that time well air’d, tho’ the latter 
was clofe, and, if I miftake not, without either win- 
dow or chimney. The prifoners informed us, that, 
before this ward received the tube, this fleeping- 
place had been very offenlive, but that foon after it 
became fweet ; and tho’ upon the fir ft working of the 
ventilator they had been more fickly than before, they 
foon recover’d their health, and had preferved it ever 
fince. Now from this account we muft not infer, 
that any danger will arife from a fudden change of 
bad air for good ; fince this accident may be better 
accounted for from another circumftance, which we 
were then likewife told of j viz. that this ward of the 
women had been fupplied by a ventilating tube be- 
fore thofe in the lower ftory, where the air being in 
a more corrupted ftate, it had pafled from thence 
thro’ the feams of the floor, and other paffages, to 
replace that, which was drawn off by the tube in the 
ward above : but that after the bad air was ex- 
haufled, the benefit of the frefh air foon appeared, 
by the better health of the prifoners. 
But as it was not my defign in this paper to fet 
forth all the advantages, that may be expedtcd from 
the ventilator, I fhall leave that fubjeft to b£ treated 
of by the ingenious inventor of it ; and fhall only 
take notice, that the tubes from the feveral wards, 
uniting in one great trunk, convey all the putrid 
fteams by that channel into the atmofphere, through 
a vent made for that purpofe in the leads of Newgate j 
and that tho’ the wind was moderate during the time 
we ftaid in the gaol, yet we obferved, that the venti- 
lator 
