ON CARBURETTED IIIDROCEJf CAS. 



327 



repeated Tcry often, in order to insure as much accuracy 

 as possible. The following is thQ result which they gi?e: 



Results. 



9. From these experiments it is easy to deduce the com- Its compos- 

 position of this inflammable gas. Its specific gravity being ^'^"^ 

 0-555, 100 cubic inches of it, at the temperature of 60^, 

 and when the barometer stands at 30 inches, will weigh 

 16-93 grains. 



Of the 205 cubic inches of oxigen gas consumed, 104 

 go to the formation of carbonic acid gas; the remaining 

 101 cubic inches must have combined with hidrogen during 

 the combustion, and formed water. Hidrogen, in the 

 gaseous state, combines with exactly half its bulk of oxi, 

 gen gas; therefore the hidrogen, which went to form water 

 in the present case, must have been equivalent to 202 cubic - 

 inches. 



If we suppose with Saussure, (and it is the supposition ^ 



least favourable to our present purpose), that carbonic 

 acid gas contains 27*5 per cent of carbon, in this case the 

 carbon contained in 104 cubic inches of it must weigh 

 13-24 grains. The weight of 262 cubic inches of hidrogen 

 gas is 5-17 grains. Thus we have ascertained, that lOQ 

 cubic inches of the ia^ammable gas from stagnant water 

 contain of 



Carbon, 1.3 -24 

 Hidrogen, 5-17 



Total^ 



;8-41 



liut 



