ERCKER, Lazarus.

Beschreibung Allerfurnemisten Mineralischen Ertzt unnd Bergkwercks arten, wie dieselbigen, und eine jede insonderheit, ihrer Natur und Eygenschafft nach, auff alle Metalla Probirt, unnd im kleinen Fewr sollen versucht werden...

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Fine woodcut on title of a metallurgical laboratory and 41 fine & large woodcuts in the text. Titleprinted in red & black. 1 p.l., 134, [4] leaves. Small folio, cont. vellum over boards (occasional light browning). Frankfurt am Main: G. Tampach, 1629. Fourth edition of this finely illustrated technological work; the first edition, issued in 1574 in Prague, is an extremely rare book. This is the first manual of analytical and metallurgical chemistry. Ercker (ca.1530-94), held various mining posts at Dresden, Goslar in the Tyrol, Prague, and elsewhere during a twenty year period. Because of these positions, Ercker acquired extensive experience in chemistry and metallurgy. The present work -- the author's magnum opus -- offers "a systematic review of the methods of testing alloys and minerals of silver, gold, copper, antimony, mercury, bismuth, and lead; of obtaining and refining these metals, as well as of obtaining acids, salts, and other compounds. The last chapter is devoted to saltpeter. Ercker described laboratory procedures and equipment, gave an account of preparing the cupel, of constructing furnaces, and of the assaying balance and the method of operating it. He used as his model Agricola's De re metallica, yet he was quite original and included only the procedures he himself had tested. Ercker was so hostile to alchemy that he did not use alchemical symbols..."­D.S.B., IV, p. 393. The attractive woodcuts depict apparatus including furnaces, balances, crucibles, etc. A very fine copy. Cisco & Smith (trans.), Lazarus Ercker's Treatise on Ores and Assaying (Chicago: 1951). Darmstaedter, Berg-, Probir- und Kunstbüchlein, p. 92. Dibner, Heralds of Science, 89­(1st ed.). Ferguson, I, pp. 245­(no copy of this ed. in the Young collection). Hoover 282. Partington, I, pp. 104-07.

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