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ORSCHALL, Oeuvres métallurgiques, 1760
ORSCHALL, Johann Christian.
Oeuvres métallurgiques, contenant : I. l'Art de la Fonderie - II. un traité de la Liquation - III. un traité de la Macération des Mines - IV. le traité des trois Merveilles.
Paris, Hardy, 1760.
12mo (172x99 mm), xxxii-394-(1) pages and 1 folding plate (leaves 389 and 391 misplaced in introduction). binding : Later full calf, gilt flat spine.
First french edition.
The collected edition of the author's scattered German works on mining, metallurgy, and metallurgical chemistry, translate by Baron d'Holbach.
Detailed descriptions are given of three alchemical processes for making large quantities of gold.
Despite its alchemical overtones, the book gives much valuable information on extractive metallurgy.
Orschall remains known for his description of a process for obtaining false rubies by dyeing glass (described in this work).
references: Duveen [441 : "French translation probably by Demachy, of the author's work "Sol sine veste", in which the manufacture of ruby glass is described"].
Price : 700 €
European VAT number: FR87515091171
© Eric Zink, Antiquarian Bookseller