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_ EXPERIMENTS 
- ON THE 
GAS FROM COAL, 
CHIEFLY 
WITH A VIEW TO ITS PRACTICAL APPLICATION. 
BY 
WILLIAM HENRY, M.D.F.R.S. Sc. 
(Read March 19th, 1819.) 
aeRO 
THE chemical properties and composition 
‘of the gas from coal formed a principal ob- 
ject of two different series of experiments, 
the results of which I laid before the public 
many yearsago. The first of these commu- 
nications, entitled ‘ Experiments on the 
Gases obtained by the destructive Distilla- 
tion of Wood, Peat, Pit-coal, Oil, Wax, &c. 
with a View to the Theory of their Com- 
bustion, when employed as Sources of arti- 
ficial Light,” appeared in Mr. Nicholson’s 
Philosophical. Journal for June 1805;* and 
the second. memoir was. published in the 
Transactions of the Royal Society, for 1808. 
* 8yo. Series, Vol, xi. page 65. 
