new inflammable Air or Ga/s, &c. 387 
times, if the charge be divided by taking it out with a 
fmall glafs tube, fitted up in the manner I defcribed in 
the paper I had the honour of laying before the Royal 
Society laft year, and which is inferted in the fecond part 
of the 68 th vol. of the Phil. Tranf. ; in which paper I de~ 
fcribe a kind of an electrical match to light a candle with. 
This air being in contact with water is abforbed by it in 
a few days, though the water be not ftirred : and much 
fooner lofes its inflammability by contact with water 
than the other inflammable airs do. However, I found 
that in lucha fituation this air had not yet loft all its ex- 
plofive force in fix days, though the water in which the 
cylindrical glafs, ten inches long and one in diameter, 
was inverted, after I had poured into it five or fix drops 
of aether, had gradually afcended till, on the third day, it 
reached to the half of the height of the glafs: fo that it 
feems as if thefe drops of aether, by their expanding in 
the form of air, had forced out half of the common 
air contained in the glafs, in the place of which the wa- 
ter afterwards afcended in proportion as the air or vapour 
generated by the aether was abforbed by the water.. 
That this air is fpecifically heavier than common air, 
and does not readily incorporate with it, is eafily demon- 
ftrated by the following experiment. I poured five or fix: 
drops of aether into a cylindrical glafs, ten inches long 
and,, . 
