Projekt: Bestände der Universitätsbibliothek Freiberg
LDP: UB Freiberg Druckschriften
Strukturtyp
Monographie
Parlamentsperiode
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Wahlperiode
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Titel
A Discovery Of Subterranean Treasure
Untertitel
Viz. Of all Manner of Mines and Minerals, from the Gold to the Coal; with plain Directions and Rules for finding of them in all Kingdoms and Countries. And also, The Art of Melting, Refining, and Assaying of them is plainly shewn; so that every Man of an ordinary Capacity may, with a small Charge, presently try the Value of such Oars as shall be found either by Rule or by Accident. To which is added, A real Experiment, whereby every one may presently try whether any Piece of Gold that shall come to his Hands be true or counterfeit, without defaceing or altering the Form thereof, and more certainly than any Goldsmith or Refiner whatsoever can do. Also A perfect Way to try what Colour any Berry, Leaf, Flower, Stalk, Root, Fruit, Seed, Bark, or Wood will give; with an infallible Method of preparing Colours, which shall neither stain, nor fade, like ordinary Colours. Very necessary for every one to know, whether he travels by Land or Sea, or in whatsoever Country, Dominion, or Plantation he may reside
( i»7 ) CHAP. V. Wherein is Jhewed the Operation of Iron. A S for the melting hereof, feeing that it is no Work to be done in the Chimney Corner, I will turn over the Reader to learn the Pra&ife thereof in every Country almoft where he (hall come. As for the Refining thereof it may be done in this Manner: Take Filings of Iron two Parts, Antimony one Part, it will melt down like your Lead Oar ; take the pure Metal, which will be much more brittle than the Lead was, and melt it with four times as much Lead as it weigheth, then refine it, as before is taught; if you know the Goodncfs of your Lead before, you may know the Augmentation out of the Iron, which will not quit the Charges out of any Iron made in thefe Northern Countries, nor yet out of Spanifh Iron ; but what it may do out of Iron made in the burning Zone I know not ; but I conceive it may do well, if any fuch Iron can be found and made in that Climate. It is true, that good Gold may be ex tradied out of any Iron, but not by any common Way, but by a tedious, laborious, and coltly Way ; and when all is done, there will.