Experiments on the Gas from Coal.. 395 
. . Product. 
ee ie oz. dr. ' 0%. dre 
A cubic foot 
.* Consumes 3a 
') 4. cubic foot of 
~) oxygens... O11 
. 1,14 -»© Carbonicacid... 1.14 
~ 4, OLEFIANT GAS, or B1-cARBURETTED 
HYDROGEN. This has been demonstrated to 
be a compound of nearly 85 by weight char- 
coal, and 15 hydrogen, without any oxygen. 
Ii is a little lighter than common air, viz. in 
the proportion of about 974 to 1000. It sur- 
passes all other gases in the brightness and 
density of its flame. Its name was origi- 
nally derived from the property, which it 
possesses, of being speedily and entirely con- 
densed, by rather more than an equal volume 
_of chlorine gas, ‘into a liquid resembling oil 
in appearance, but since shewn to approach 
more nearly to the nature of ether. 
' Products, 
c - 0% dr. oz. dr. 
A cubic foot 
weighs... 1. 3 2cubicfeetcarb. 
ACI sescgchavcce, Pa lO 
Consumes 3 j ; 
cub. feet of 
oxygen... 4.0 Water soveveee vee 1. 9 
5.8 5.3 
