Analysis of the compound inflammable Gases. 303 
consist in agitation with quicklime and water, composing a 
mixture of the consistence of cream. Simple washing with 
water by no means effects the complete separation. 
In the experiments which were made on the products of the 
distillation of coal, I purposely neglected the amount and ana- 
lysis of the condensible fluids, because they cannot be advan- 
tageously ascertained by the same operation with the elastic 
ones. They may also be much better determined on the large 
scale of manufacture, than by limited experiments. For the 
same reason I was not solicitous to measure even the aeriform 
fluids ; and on this subject, I believe, more accurate informa- 
tion has been communicated by Mr. Murdoch, than it was in 
my power to acquire. 
Manchester, May 19, 1808. 
