A discovery of subterranean treasure : containing useful explorations, concerning all manner of mines and minerals, from the gold to the coal; with plain directions and rules for the finding of them in all kingdoms and countries. : In which the art of melting, refining, and assaying of them is plainly declared ... : Whereunto is added a real experiment whereby every ignorant man may presently try whether any piece of gold that shall come to his hands be true or counterfeit ... : Also a perfect way to try what colour any berry, leaf, flower, stalk, root, fruit, seed, bark, or wood will give: with a perfect way to make colours that they shall not stain nor fade like ordinary colours. : Very necessary for every one to know, whether he be a traveller by land or by sea, in what country, dominion, or plantation soever he shall either sojourn or inhabit. / - Plattes, Gabriel, (Printed and sold by Robert Bell, in Third Street,, 1784)