D'ALEMBERT (JEAN LE ROND): Traité de Dynamique ... nouvelle edition, Paris, chez David, 1758, 4to, 5 folding engraved plates (library blind stamp and accession no. on title, repeated at foot of D2 recto), contemporary stained calf, spine gilt. [Brunet II, 471; Sotheran I, 73: 'best edition'; Honeyman 804]; and another vol. by D'Alembert (defective). (2)