- Camille FLAMMARION Popular Astronomy. Paris, C. Marpon et E. FLAMMARION, 1880. In-4. Half-bound in green leather and marbled paper (wear, beginning of cuts to the hinges). Some soiling. - DELAUNAY] Cours élémentaire d'Astronomie. s.d. In-12. Half-bound in red leather and marbled paper (wear and rubbing). Spots and stains. - A. ANGOT Traité de Physique élémentaire. Pari, Lib. Hachette, 1881. Half-bound in brown leather and marbled paper (wear, rubbing and tearing). Stains, paper unstained, leaves detached. - Ch. BRIOT Leçon d'Algèbre... Paris. Lib. Ch. Delagrave, 1874. 2nd part. In-8. Half-bound in red leather and marbled paper (wear and rubbing). Spots and stains. = not collated. Provenance: Library of Auguste VERNEUIL (1856-1913), inventor of synthetic ruby.