232 résultats
18511119691851 A Chartres, Chez Noury-Coquard, Libraire-Editeur et à Paris, Chez Chamerot, Libraire-Commissionnaire et dans les principales stations du chemin de fer de l'Ouest - 1851 - In-8, broché - 171 p. - 4 gravures hors texte
18221092331822 A Paris, Chez Béchet Ainé, Libraire et chez le Capitaine Bacheville - 1822 - Deuxième édition, revue et corrigée - In-8 (12,5 x 20cm environ), reliure pleine peau, 5 nerfs, fleurons, filets et titre doré au dos, tranches jaunes - 432 pages - Frontispice - Signature du Capitaine Bacheville, attestant de l'originalité du volume
1846WOC-127Illustrés d'après des dessins de l'auteur et de 15 grands dessins hors texte. 2 ème édition. Paris, Chez J.J. Dubochet, Le Chevalier et Compagnie, 1846. Grand in-8(28x18cm)relié demi chagrin noir,dos à faux-nerfs orné de larges caissons dorés,et tranches dorées,petite fente sur la charnière supérieure vers la coiffe supérieure. VIII,420pp.Un feuillet légèrement déboîté et quelques rousseurs.
18801223401880 Editions Librairie Hachette, Bibliothèque des écoles et des familles - 1880 - In-8, pleine percaline rouge avec décors dorés - 206 pages - Illustrations en N&B hors-texte
1863E011416 cm X 24,5 cm, 468 pp + 23 planches d'illustrations du Durand-Brager dont 1 en frontispice sous serpentine, reliure demi-cuir, dos à 4 nerfs, titres dorés, décorations dorées sur les caissons. 3 tranches dorées. Signet
187844231Paris G. Masson 1878. 8vo. Contemp. hcalf raised bands gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: "Annales de Chimie et de Physique" 4e Series - Tome 15. 512 pp. a. 3 folded engraved plates. The entire volume offered. Janssen's memoir: pp. 414-426. <br/><br/><em>First appearance of this milestone paper in chemistry physics and astronomy announcing the discovery of the helium lines in the spectrum of the sun. It was Lockyer in the same year that named it 'helium' for Helios the Greek God of the Sun. Helium was not discovered on the earth before 1895 by William Ramsay and it was Crookes who established its identity with the helium Janssen and Lockyer observed in the spectrum of the sun."He Janssen met immortality by travelling to India in 1868 to study the total eclipse. It was then that he observed the helium line and forwarded the spectral data to ockyer. He also noted the size of the solar prominences. The day after the eclipse he attempted to take their spectra again and succeeded despite the absence of the obscuring moon. he then announced jubilantly that it was the day after the eclipse that was the real eclipse day for him. Lockyer also reported this method of studying prominences without an eclipse.Like Lockyer he lived to see his observation of the helium line vindicated by Ramsay's discovery of that element on earth."Asimov."This the discovery of helium lines in the sun by Lockyer was announced on the same day by the French astronomer Janssen who was in India observing a total eclipse. As a result the French government some ten years later struck a medallion showing the heads of both scientists.By that time the two men had made a much more dramatic discovery at the same time this time in cooperation. Janssen studying the spectrum ofthe sun during the eclipse had noted a fine line he did not recognize. he send a report on this to Lockyer an acknowledges expert on solar spectra. Lockyer compared the reported position of the line with lines of known elements concluding that it must belong to a yeat unknown element possibly not even existing on the earth. He named the element from the Greek word for the sun."Asimov.Parkinson "Breakthroughs" 1868 A. - The volume contains other notable papers by Dumas Berthelot et al. </em> hardcover
187844231Paris, G. Masson, 1878. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", 4e Series - Tome 15. 512 pp. a. 3 folded engraved plates. (The entire volume offered). Janssen's memoir: pp. 414-426.
