Robert Laffont, 1978, 249 pages, in 8 broché, état correct, quelques usures et frottements.
1979 Robert Laffont, 1979, 240 pages, in 8 broché, état moyen, coins cornés, couverture salie, usures et frottements.
France Loisirs, 1986, 254 pages, in 8 reliure éditeur cartonnée et toilée rouge, bon état avec jaquette illustrée état d'usage (quelques légères déchirures).
NRF Gallimard, 1953, 307 pages, in 12 broché, état moyen, coiffes abimées et légèrement déchirées, taches sur le 2ème plat.
NRF Gallimard, Le Point du Jour, 1955, in 8 broché, 254 pages, légèrement insolé et jauni, état d'usage, petit manque sur le haut du 2ème plat, quelques frottements et usures.
J.Ferenczi, Le Livre Moderne Illustré N°333, 1940, 158 pages, illustrations par Jacob-Hians, in 8 broché, état d'usage, usures et frottements, papier légèrement jauni, coins cornés.
1964 Presses de la Cité, 1964, 314 pages, in 8 reliure éditeur cartonnée et toilée, état correct, papier jauni, quelques usures et frottements.
Amsterdam, Scheltens & Giltay, n.d., in-4to, 240 p. + photogr. plates, orig. clothband.
Phone number : 41 (0)26 3223808
"JANSSEN, PIERRE JULES CÉSAR - THE DISCOVERY OF HELIUM IN THE SUN.
Reference : 44231
(1878)
Paris, 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.
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.
"JANSSEN, PIERRE JULES. - DISCOVERY OF THE FIRST ALIAN ELEMENT, HELIUM.
Reference : 59086
(1869)
(Paris, Gauthier-Villars), 1869. 4to. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 68, No 7. Pp. (349-) 408. (Entire issue offered). Janssen's paper pp. 367-376.
First printing of the paper in which Janssen announced the discovery of a new element. On August 18, 1868, Janssen managed to do just that. He became the first person to observe helium, an element never before seen on Earth, in the solar spectrum. At the time, though, Janssen didn’t know what he’d seen""just that it was something new""""Helium, the second most abundant element in the universe, was discovered on the sun before it was found on the earth. Pierre-Jules-César Janssen, a French astronomer, noticed a yellow line in the sun's spectrum while studying a total solar eclipse in 1868. Sir Norman Lockyer, an English astronomer, realized that this line, with a wavelength of 587.49 nanometers, could not be produced by any element known at the time. It was hypothesized that a new element on the sun was responsible for this mysterious yellow emission. This unknown element was named helium by Lockyer.""
Maastricht, Stichting Historische Reeks Maastricht, 1983. in-8 carré (22 cm), 108 pages, abondante iconographie, broché.
Excellent etat - VG+++ [SO-9]
1952 Del Duca, 1952, 378 pages, in 8 reliure éditeur cartonnée (verte), bon état, avec jaquette, état d'usage (quelques usures ).
Le Club Français du Livre, Robert Laffont, 1963, 159 pages, in 8 reliure éditeur cartonnée et toilée beige, quelques frottements et traces d'usure, bon état général, papier bible, exemplaire n°2514/7000.
1925 Bibliothèque d'Education, prix scolaire Ecole de Filles de la rue Damrémont Paris 18ème, illustrations par JM.Porta, 1925, 63 pages, in 8 reliure éditeur cartonnée et illustrée, dos et mors toilés, état d'usage, quelques auréoles et petites taches, rousseurs, coins frottés, usures et frottements sur les coiffes et les plats.
1953 Le Club Français du Livre, édition originale, 1953, T1 : 1337 pages, in 8 reliure de cuir souple, état correct, quelques usures, pliures et frottements sur les coins et les bords des plats
Editions Nelson, 1934, 480 pages, in 12 reliure éditeur cartonnée et toilée beige, état d'usage, quelques frottements, usures et rousseurs (légères auréoles).
1891 Emile Testard, Paul Ollendorff, 1891, 384 pages + 85 illustrations de Georges Roux, ex-libris de A.Jacques "fais ce que je dois", in 12 reliure cartonnée demi chagrin, dos à 5 nerfs et mors de cuir noir, état d'usage, coins écrasés et frottés, papier jauni, quelques usures et frottements.
Librairie Plon, Plon Nourrit et Cie, imprimeurs editeurs, 1922, etat moyen, 248 pages, in12 broché, usures sur tranches, dos et plats, coins cornés.
Librairie Plon, 1928, 245 pages, in 12 broché, état moyen, papier jauni, rousseurs, coins cornés, exemplaire insolé, usures et frottements.
2006 Obsidiane, Les Belles Lettres, 2006, 77 pages, in 8 broché, très bon état
2006 Obsidiane, Les Belles Lettres, 2006, 159 pages, in 8 broché, très bon état, dédicacé par l'auteur.
Cahiers de Nizab, 1928, 28 poèmes, in 8 broché, état d'usage, insolé et jauni, quelques rousseurs.