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2020-11-19 09:11:04
ROMÉ DE L'ISLE (Jean-Baptiste Louis de)
Cristallographie ou description des formes propres à tous les corps du règne minéral dans l'état de combinaison saline, pierreuse ou métallique. [Followed with] Des caractères extérieurs des minéraux
Paris: mprimerie de Monsieur [then] Chez l'auteur, Didot, Barrois, 1783-1784. Extremely rare copy, with the supplement, in uniform binding complete with the supplement, Des caractères extérieurs des minéraux, published one year later.We haven't be able to find such a set in private hands. 2 books in 4 volumes 8vo I. XXXVIII, (2), 623 and (1) pages ; II. (4), 659 and (1) pages ; III. (4), 611 and (1) pages ; and IV. XVI, 80 pages, 12 plates and 32 tables [then] (4), 82, (2) pages and 3 three large folding tables ; contemporary half-calf."Romé's chief scientific goal was the establishment of mineralogy on a firm basis of crystallography. His major contribution toward this end was the formulation of the law of the constancy of interfacial angles which became the cornestone of crystallography. Although earlier investigators had made incidental statements about such a constancy in one or two substances, Romé and Carangeot were the first to enunciate it as a general law of nature... His major work, the Cristallographie (1783), was first advertised as a second edition of his Essai, but instead it was expanded and comprised three volumes and an atlas describing more than 450 crystal forms. In this book rather than using any physical basis, Romé followed both Linnaeus and Domenico Guglielmini in classifying crystals by arbitrary primitive formes. Each crystal described was measured precisely. In the course of making terracotta models, Romé's assistant, Arnould Carangeot, had discovered the fundamental law of the constancy of interfacial angles ; and, using a contact goniometer inven … [Click Below for Full Description]
Bookseller: Le Zograscope [France]
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