* 2a eee ss 
‘up one meafure of common air with 
one of nitrous air, and fhaking the 
tube immediately when the two airs, 
came in contact with one another, 
In examining the dephlogitticated 
alks,. ck joined two meafures of ni- 
trous airs ie one of cephlogifticated 
air, ihaking them in the fame way 
asin the former cafe ; : but, as thefe 
two meafures of nitrous air did not 
always compleat fully the faturation 
of this kin d of air, I added another 
INeaiure Of nitrous air to it, and fo 
on till no farther diminution took 
Place... - ) 
L have pore Car reful to exprefs the 
two differe nit teits in my experiments 
chiefly in the frit {eétion, fo that 
the reader, who is alrea ady. initiated - 
in the. pees of Dr. Sess may 
"iments 
