i ay 
be far fuperior to the atmofperic air, 
for one meafure of it, with one of 
‘nitrous air, occupied 0.46; and 
-yet it exploded as ftrongly as before. 
I replaced it again in the garden 
during tour bours more, when it 
“appeared to be {till farther improved 
By the nitrous teft, without i 
yer, sin the leaft, its explofive 
eit ReneSeee alco iment 11 beck 
oE-had) aafo; on the fame Satna 
put feme plants of per/icaria urens 
with their roots in ajar full of water, 
and jet up two pints of {trong in» 
flammable air. . I found this air on 
Sunday, after the jar‘had been 24 
hours in the garden, fo much cor- 
rected, that it approached to the 
goodnefs of common air by the ni- 
trous ‘teft, though it exploded with 
a ioud report. I replaced the jar 
again in the garden, and sone cx 
3 
