by Diderot, Denis.
Paris (1763). Folio, 253 x 393mm. 21 pages of descriptive text & 2 loose plates with their accompanying text sheet from the volume of plates. Slight browning to margins, a little spotting otherwise very good. § The 2 plates and descriptive text for the entry of Diamantaire from volume III of plates. Plates are numbered 1-2. Plate 1 is continued on a second sheet.Also with the relevant entries listed under Diamant in the Table Analytique et Raisonnée du Dictionnaire des Sciences, Arts et Métiers. Vol 1 (1780)1 page (145) from volume II of the Encyclopédie (1751) which includes information on Bâton à égrifer1 page (193) from volume IV of the Encyclopédie (1754) which includes information on L'outil appellé coquille1 page (764) from volume V of the Encyclopédie (1755) which includes information on Lien de fer1 page (124) from volume XVI of the Encyclopédie (1765) which includes Tenailles4 pages (938-941) from volume IV of the Encyclopédie (1754) including information on Les diamants en général under Diamant1 page (877) from volume VI of the Encyclopédie (1756) including information on Le palais ducal à Florence under Diamant1 page (687) from volume VII of the Encyclopédie (1757) including information on Le défaut appellé glace under Diamant1 page (849) from volume VIII of the Encyclopédie (1765) including information on Progrés under Diamant1 page (282) from volume IX of the Encyclopédie (1765) including information on La maniere under Diamant2 pages (588 & 594)from volume XII of the Encyclopédie (1765) describing La gravure sur les diamants under Diamant1 page (634) from volume XIV of the Encyclopédie (1765) which includes Procédé par lequel on change le saphir en diamant under Diamant1 page (802) from volume XV of the Encyclopédie (1765) on Table du diamant under Diamant2 pages (417 & 876) from volume XVI of the Encyclopédie (1765) on Les topases & les saphirs and L'ouvrage de Tavernier under Diamant3 pages (710-712) from volume II of the Supplément à l'Encyclopédie (1776) which includes Les experiences qui prouvent la singuliere volatilité du diamant under DiamantWith some browning to a few leaves.These plates thoroughly examine the systems of pulleys and wheels involved in the precise art of cutting diamonds. Artisans are shown at work, and different blades and grinders are displayed. The main and supplementary articles on Diamant are also included to help explain the art as it was in the eighteenth-century, as are entries on Lapidaire, Saphir, Baton à Égriser, Coquille, Epée and Tenailles. (Inventory #: 122584)