c f *33 ] 
Secondlv, That the fphere of its adivity is increafed 
by he^t. Thirdly, That this fire does not mix with 
air ourthiy. That it intimately pervades water 
and many other bodies, covering their fuperficies to 
a certain difiance ; which difiance is not in propor- 
tion to the bulk of the body eledrified, but in pro- 
portion to the fiate of adivity of the eledrical fluid. 
eledrical fluid readily joins with any 
re, w ich fumes, or rather with the blaze or fumes 
ot any fire ; but will not mix or fly off with the fire' 
ot red hot iron, or any other metal, which does not 
fume. I have not met with this in any writer on 
eledricity, but I have proved it by experiments. 
^ow, to fiiew, that this eledrical fire or fluid is 
the principal caufe of the afcent of vapour and ex- 
halation, we need only prove, that it attends all va- ~ 
pour and exhalation, ancl that in fuch quantity, as is 
neceffary to render them fpecifically lighter than the 
lower part of the atmofphere. 
. I fhall not undertake to determine, by what caufe 
vapour and exhalation are detached from their maffes, 
whether by the folar or culinary fire, or by the vi- 
brations of the eledrical fluid rendered more adive 
by thofe fires j though I am led to think the latter. 
But It is evident, that they arc emitted in exceeding 
minute difiind particles, and that thcfe particles mufi 
pafs through that eledrical fluid, which furrounds the 
lurface of the mafs 3 and that, by that means, they 
mufi be equally eledrified with the mafsj that is,, 
they mufi be covered vvith the eledrical fluid to as 
great a difiance from their fuperficies as the mafs is 
^vered 3 which mufi always be in proportion to the 
Itate of adivity of the eledrical fluid. In which 
fiats. 
