ADVERTISEMENT.

This work was published in 1818, but apart of the edition having remained unsold,and the recent occurrence of some severeaccidents from explosions in coal mines, andhouses lighted by gas, and the loss of shipsby fire, having shewn, that the precautionswhich it was intended to describe, either arenot known or are not attended to, I havethought it might assist the cause of hu-manity, to advertise the book a second time.1 have added to it a few additional para-graphs, which contain some new facts andsome practical results, connected with the useof the Safety Lamp ; most of the last occurred