eae 
tity of common air, whofe teft. was 
at that time fuch, that one meafure 
of it with one of nitrous air occu- 
pied 4.063. In the other jar was 
let up the fame quantity of air 
fouled -by refpiration, of which one - 
meafure with one meafure of ni- 
trous air occupied 1.34. 
The. air. of, both jars was. exa- 
mined at two o’clock, when I found 
the common air fo much improved, 
that one meafure of it with one of 
Nitrous air occupied. $00.7 The 
foul air. was fo much mended, that 
it was near as good as the atmo- 
-dpheric air, for.one.meafure of it 
With.one of nitrous air occupied 
_ Bow. 1.082. 
~ _.1 examined both airs again. at 
os four oclock, when the common air 
Was ftill more improved ; for one 
pie of it with. one of nitrous 
air 
