Mr. Kinwan’s Remarks. 173 
and above the air generated by the mixture, I made another 
experiment in a different manner; namely, I filled a bottle 
with lime-water, previoufly mixed with as much nitrous acid 
2s is contained in an equal bulk of nitrous air, and having in- 
verted it into a veflel of the fame, let up into it, in the fame 
manner as in the above-mentioned experiments, a mixture of 
common air with .'.th of its bulk of fixed air, until it was 
half full. The event was the fame as before; namely, the 
cloudinefs produced in the lime-water was fuch that I could 
not poflibly have overlooked. It muft be obferved, that in this 
experiment no fixed air could be generated, and a full greater 
proportion of the lime-water was turned into nitrous felenite 
than in the above-mentioned experiments; fo that we may 
fafely conclude, that if any fixed air is generated by the mix- 
ture of common and nitrous air, it mutt be lefs than >,th of 
the bulk of the common air. 
As for the nitrous felenite, it feems not to make the effect of 
the fixed air at all lefs fenfible, as I found by filling two bottles 
with common air mixed with ,2.,dth of its bulk of fixed air, 
and pouring into each of them equal quantities of diluted lime- 
water; one of thefe portions of lime-water being previoufly 
diluted with an equal quantity of diftilled water, and the other 
with the fame quantity of a diluted folution of nitrous felenite,. 
containing about ,2.dth of its weight of calcareous. earth ; 
when I could not perceive that the latter portion of lime- 
water was rendered at all lefs cloudy than the former. Though 
the nitrous felenite, however, does not make the effect of the 
fixed air lefs fenfible, yet the dilution of the lime-water, in 
confequence of fome of the lime being abforbed by the acid, 
does ; but, I peDeee, not in any remarkable degree. 
There 
