[ > 4 * 3 
other. But the Air being electrical of a Vitreous 
Electricity, and Sulphur of a Refinous Eledricity, the 
Particles of Air attrad thole of Sulphur, and the 
Molecule compounded of them, becoming non- 
eledric, lofe their repulfive Force. 
It has for a great while been thought, that watery 
Vapours, that rife in Air to form Clouds, ufed to rife, 
becaufe the Water which is of itfelf fpecifically 
heavier than Air, (being formed into little hollow 
Spherules or Bubbles filled with an Aura , or thinner 
Air than the ambient Air) in this new State made a 
Fluid of little Shells, fpecifically lighter than the am- 
bient Air in which it mufl rife. But Philofophers are 
come off of that Opinion ; and fuch as have impli- 
citly come into it, may find it refuted in the P htlo - 
fophical Tranfaffions , N° 407. 
Now may not this ‘Phenomenon of the Rife of 
Vapours depend upon Eledricity in the following 
manner ? 
The Air which flows at Top of the Surface of the 
Waters is eledrical, and fo much the more as the 
Weather is hotter. Now in the fame manner as 
fmall Particles of Water jump towards the eledric 
Tube, may not thofe Particles jump towards the Par- 
ticles of Air, which have much more fpecific Gra- 
vity than very fmall Particles of Water, and adhere 
to them ? Then the Air in Motion having carried 
off the Particles of Water, and driving them away as 
foon as it has made them eledrical, they repel one 
another, and aifo the Particles of Air. This is the 
Reafon that a cubiclnch of Vapour is lighter than a 
cubic Inch of Air j which would not happen, if the 
Particles of Vapour were only carried off in the In- 
tcrftices 
