( 64 ) 
ON OIL, 
AND THE 
GASES OBTAINED FROM IT 
BY EVRA, 
FI ISIS IILIBLD IEEE DLE DLL men 
BY JOHN DALTON, F. R. S. &c. 
(Read October 6th, 1820.) 
LIED LODL DLL OLDE LD LDL DD mens 
Havine lately had occasion to make some 
experiments on the effects produced by heat- 
ing oil, particularly that species of fixed oil, 
derived from the animal kingdom, I have 
thought it would not be uninteresting to the 
members of this society, to have the results 
laid before them: especially as the gas pro- 
duced from the decomposition of this kind of 
oil is likely to be introduced in a greater or 
less degree, as a substitute for that from coal 
for the purpose of illumination. 
When whale oil is heated over a fire in 
an open vessel, it gradually acquires tem- 
perature, like any other liquid, till it arrives 
