Développement et défense du système de la noblesse commerçante. A Amsterdam, et se trouve à Paris, chez Duchesne, 1757. 2 volumes. - (Bound with:) (BELOT, Dame Octavie Guichard, later: présidente Octavie Guichard DUREY DE MEYNIERES.) Observations sur la noblesse et le Tiers-Etat par Madame ***.

A Amsterdam, chez Arkstée & Merkus, 1758. Together 2 works in 1 volume. 151 pp.; 206, (2, publisher's catalogue) pp.; (2), xxiv, 113 pp. Small 8vo. Contemporary calf, spine gilt with raised bands. First work: Kress 5597; Goldsmiths 9241; Einaudi 1383; Higgs 1478; INED 1227; not in Mattioli; Conlon 57:658.First edition.Coyer wrote his famous La Noblesse Commerçante ... in 1756. He outlined in this work the advantages for the noblity if they were to be engaged in commerce, and the advantages of a commercial active nobility for the State: development of commerce and trade, rise in population growth and consumption. The work generated a substantial polemic and against the many criticisms of his system the Abbé Coyer wrote this defense, particularly against the Chevalier d'Arcq's La Noblesse Militaire. Second work: Kress 5663; Goldsmiths 9395; Einaudi 397; Higgs 1728 (under Durey de Meynieres) & 1793 (under Belot); INED 391; Conlon 58:664. First edition.'C'est en répriment le luxe qui dévore les citoyens, énerve leur courage, dépeuple les provinces et dévaste les campagnes' (INED). - Preliminairies of the second work browned.