Diderot on Canon casting.
DIDEROT, Denis. Fonderie des canons (Canon casting) Encyclopédie, ou dictionnaire raisonné des sciences, des arts et des métiers. Plates vol. 5 Paris (1767)
Folio, 253 x 393mm. 11 pages of descriptive text & 25 loose plates with their accompanying 17 text sheets from the volume of plates. Slight browning to margins, a little spotting otherwise very good.
The 25 plates and descriptive text for the entry of Fonderie des canons from volume V of plates. Plates are numbered 1-25. Plates 3, 6, 7, 8, 24 and 25 are all double plates. The editors miscounted the number of double plates as five when there are in fact six.
11 pages (606-616) from volume II of the Encyclopédie (1751) with information on the foundry.
With some browning to a few leaves.
This impressive suite of plates on the casting of canons includes many attractive double plates of different canons and the machines used to make them. The Arms of France appear on many of these, as do those of Louis Auguste de Bourbon, Louis XIV's son. The creation of the canon mould and the casting of the weapon are also explained, with fascinating details on the drills used to produce the correct bore. Several detailed plates also depict the casting of various weights of canon ball. Furthermore two plates examine a recent Spanish invention, an improvement on the design of the gun carriage. The plates are supported by a number of entries under Canon, dans l'art militaire.