Note 52 — DESCRIPTION OF THE MINES, &c.

“As some men were lately sinking an air hole to the bottom level of the Consolidated Mines, when at the depth of 160 fathoms from the surface, they struck into a cavern; the rush of foul air from which, compelled them to call out to their companion stationed above, to raise them by the tackle kept in readiness for that purpose. This vast subterranean vault is situated in one of the principal lodes of the mine; it is about nine feet high, and six feet wide; the western end from the place of entry, has been explored, and is found to be about 40 fathoms in length; the foul air in the eastern end, has hitherto prevented the miners from fully exploring it; the appearance of the sides and roof is very craggy, and shews that the cavity has been occasioned by a convulsion of nature.”