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Aula Subterranea domina Dominantium subdita subditorum. Das ist: Untererdische Hofhaltung Ohne welche weder die Herren regieren/ noch die Unterthanen gehorchen können. . .
Frankfurt am Mayn: Verlegt von Johann David Jung, 1736. Frankfurt am Mayn:: Verlegt von Johann David Jung, 1736., 1736. Two parts in 1. Small folio. (12), 208, (4), 36 pp. Engraved half-title (signed Badollet fe[cit].), title printed in red & black, 44 woodcuts (see 1672 printing); some browning, lower margins waterstained, occasional minor marginalia, pp. 97-98 torn at lower gutter (some minor loss), ink stain pp. 15, 31-32. Original full vellum, manuscript spine title; some tearing or damage to spine. From the library of John Stuart, the Third Earl of Bute (1713-1792), George III's tutor and his first Prime Minister (1762-3) [no markings]. CLASSIC WORK ON MINGING ENGINEERING & TECHNOLOGY Eighth edition, the final German edition and the most complete. "Designation as the fifth edition is erroneous. This edition contains the annotations, etc., as in the 1672 edition, and [Christian] Berward's Interpes Phraseologiae, with separate pagination (36 pp.). There is a new section, designated as Second Appendix to the Fifth Book, describing saltpeter plantations and the manufacture of gunpowder. This is illustrated with three new woodcuts showing recrystallization of saltpeter and the milling and graining of gunpowder." – Sisco & Smith, p. 334. "Although the title-page credit one 'J.E.C.' with editing and enlarging it, this is essentially a reprint of the 1703 edition, with an added section on gunpowder, illustrated by engravings of powder mills and graining shops. 'J.E.C.' may stand for Johann Hiskias Cardilucius, who wrote the Foreword to the 1672 edition . . . the illustrations in this 1736 edition are identical with the ones in the 1580 edition and with a few exceptions were obviously printed from the same blocks." – Sisco & Smith. Considering the importance of Ercker's treatise it is remarkable how little is on record about him. He was inspector-general of the mines in Hungary, Transylvania, and the Tyrol, which position he held under three consecutive emperors in the 16th century, and he calls himself of St. Annen Bergk. This town is in the Saxon Erzgebirge, close to the Bohemian border. His book was highly prized at the time, for it was a record of practical experiences, and was not burdened with theories and hypotheses. Ercker's work should prove of interest to the economic historian for throughout it one can catch glimpses of the relation between scientist and plant operator and see the utilization of scientific knowledge and techniques for the control of mill operations for an increase of profit. "The only one of Ercker's works to contain many drawings, it presents 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 salt-peter." – DSB, IV, pp. 393-394. Lazarus Ercker, (born c. 1530, Annaberg, Saxony [Germany]—died c. 1594, Prague, Bohemia [now in Czech Republic]) important German writer on early metallurgy. He studied at the University of Wittenberg (1547–48) and in 1554 was appointed assayer at Dresden, the first of many such positions he held in the state bureaucracy of Saxony. After 1567 he became control tester of coins at Kutná Hora, near Prague. In his great work, Beschreibung allerfürnemisten mineralischen Ertzt und Berckwercksarten (1574; "Description of Leading Ore Processing and Mining Methods"), he presented a systematic review of the techniques then in use for testing alloys and minerals of silver, gold, copper, antimony, mercury, bismuth, and lead; of obtaining and refining such metals; and of extracting acids, salts, and other compounds. It may be regarded as the first manual of analytic and metallurgical chemistry. – Britannica. REFERENCES: DSB, IV, p. 394; Ferguson I, 244-5; Duveen 195; Neu 1317; Neville Chemical Library, I, p. 422; Partington, II, p. 104; Wellcome II, p. 527. See: Hoover 280-284 (editions from 1574 to 1684).
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