LA LANDE [Joseph Jerome Le Français] de. Astronomie, Paris, 1771-1781, 4 volumes, 4°, second edition, profusion of engraved folding plates, contemporary calf (rebacked, old spine labels preserved, some rubbing to edges, minor staining and browning), bookplates of Luton Library. [Brunet III, 777] -- Joseph Louis LAGRANGE. De la Résolution des équations numériques de tous les degrés, Paris: Chez Duprat, An. VI [1798], 4°, FIRST EDITION, with half-title, 19th century gilt prize binding (some rubbing at extremities, early owner's signature on title). [Riccardi I (2),4; Honeyman V, 1883]. With the same author's Méchanique Analytique (Paris, 1853-55). (6)