, [ + Iviti- } 
Some of its qualities, by which ie 
may be known, are the following : 
it is not abforbable by the contact of 
water; the flame of a candle 
plunged in it becomes larger, and 
of the moft admirable brilliancy, fo 
as to dazzle the eyes; red-hot 
charcoal plunged in it becomes 
thin ' nis 4 and _fparkling ; ; it is much 
3 diminifhed by nitrous air than 
common. air; it explodes, with an 
uncommon loud report, when 
mixed with a certain proportion of 
inflammable air, or when a few 
SOP of ont wicniolic aather., are 
air, as I oe 
Fixed air is that kind of aa 
fi id which iffues in abundance 
from - fermenting fubftances, and 
which, in fome places, rifes out of 
the ground by itfelf, as. > in the fa~ 
mous 
