Hydrogen und Carbon. 271 
the whole of the water, without altering the filter. Hence 
it was always a great deal’ too heavy, never weighing less 
than 2th of a grain, 
from the preceding table we easily deduce the following: 
| Pike o-| Pure Rint Carbonic 
lefiant | oxygen] +72" | Total. | acid | Residue. 
gas. | gas. EPR: formed. 
1 | 33-2 |96°64| 8°16 | 68 | 5°5 | 94°5 
2) 33°6 | 27°98 | 842 70 
3 33°6 | 27°98 | 8:42 70 
4 | 336 7-08 | 8°32 | 69 
In the first experiment, 5-5 measures of oxygen gas went 
to the formation of carbonic. acid, and 3:74 were found 
uncombined, after the explosion, by the test of nitrous gas. 
. Hence it follows, that 17-4 measures of oxygen gas, com- 
Lined with 33:2 measures of olefiant gas, deprived of a por- 
tion of its carbon, and formed a new inflammable gas, 
amounting to '82°7 measures in bulk, or almost double the 
bulk of the two gases that went to form it. 
- The new inflammable gas being examined by a new 
mixture with oxygen gas, and a new detonation, was found 
to consume 73 per cent. of oxygen gas, and to form 55 per 
cent. of carbonic acid. 
Hence the 82°7 measures would have formed..... 45°5 
But 33-2 measures of olefiant gas would have formed 69-0 
Difference... ...,83°5 
From this it would seem, that about 4th of the carbon 
removed by the first explosion is convertéd into carbonic 
acid, while 3ths precipitate in the state of a black powder. 
43:2 cubic inches of olefiant gas weigh.... 9°87 grains. 
The carbon in 23°5 cubic inches of car- | Bes . 
bonic acid weighs... .i.-enseseeeee = allt 
‘ 
—— 
Residue... 6°82 
17°4 cubic inches of oxygen weigh ....... 5 31 
. 
Hence the weight of 82°7 cubic inches ais 
of the new gas cannot exceed.,....-f  ~ 
Hence 
