482 * Memoir on Sulphuric Ether. 
In the present essay I have alluded to the 
weight of an atom of alcohol ; but. this 
weight is not that given in my Chemistry, 
part 1. From recent experiments on the 
combustion of alcoholic vapour in oxygen 
by electricity, as well as from the combustion 
of alcohol by the platina wire lamp without 
flame, I believe the alcohol of :82 specific 
gravity, is constituted of 1 atom carburetted 
hydrogen, and 1 of water, as it seems to 
give carbonic acid=half the volume of oxy- 
gen consumed, or very little more. But 
there is a remarkable difference in the results 
when alcohol is burned in a lamp in common 
air, This combustion gives carbonic acid 
nearly=2 of the volume of oxygen, and would 
imply alcohol to be 1 water and 1 olefiant 
gas. At present I haye not leisure to clear up 
this difficulty. fer 
