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Histoire de la Découverte faite en France, de Matières semblables à celles dont la Porcelaine de la Chine est composée. Lûe à l'Assemblée publique de l'Académie Royale des Sciences, le Mercredi 13 Novembre 1765
23 pp. Large 4to, orig. marbled wrappers bound in later cloth. Paris: de l'Imprimerie Royale, 1765. First separate edition, an offprint with new pagination. Guettard (1715-86), who served as curator of Réaumur's natural history collections, was elected to the Académie Royale des Sciences as an adjoint botaniste. He is most famous for his discovery of the volcanic nature of the Auvergne and his attempt to construct a geological map of France in collaboration with Lavoisier. Guettard played an important role in the development of the porcelain industry in France. About 1750 the Duc d'Orléans founded a laboratory, under the direction of Guettard, in order to discover the art of making hard or Chinese porcelain. Having examined samples of the rare materials sent from China, Guettard determined that kaolin and petuntse near Alençon could be used. In the present work, Guettard describes his findings. The discovery of kaolin in France enabled the porcelain industry to finally successfully replicate the hard-paste porcelains of China which had for centuries been considered the finest in the world. This great discovery led to the enormous development of the porcelain industries of both Limoges and Sèvres. A year later, Brancas (1733-1824), Comte de Lauraguais, scientist and Academician, disputed the claims of Guettard regarding the discovery of kaolin, in his Observations sur le Mémoire de M. Guettard concernant la Porcelaine. Brancas claimed that he was the first, in 1758, to make French hard-paste, also using kaolin from Alençon. Tipped-in is a one-page autograph by Guettard regarding the transport of kaolin and difficulties with the customs agents. Fine copy and rare. Bookplate of Frederic Cheron. ❧ D.S.B., V, pp. 577-79. Poggendorff, I, 973-74.
      [Bookseller: Jonathan A. Hill, Bookseller, Inc.]
Last Found On: 2017-06-22           Check availability:      IOBABooks    


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