‎Découverte à Saqqarah. Le vizir oublié.‎

‎ 1990 Editions du Seuil - 1990 - In-Folio, cartonnage toilé décoré à froid sous jaquette illustrée - 195 pages - Illustrations en couleurs et N&B, in et hors-texte, dans l'ouvrage‎

‎Bon état - jaquette très légèrement frottée au niveau du coin supérieur ‎

‎Galapagos, caméra au poing au plus fantastique pays du monde.‎

‎Paris, Presses de la Cité, 1971. 14 x 21, 314 pp., plusieurs illustrations et cartes, cartonnage d'édition + jaquette, bon état.‎

‎envoi de l'auteur.‎

‎Télescope et microscope ‎

‎in 12 broché titre,190 pages,1 page de catalogue Germer Baillière & Cie Bibliothèque utile XLI rousseurs éparse, plus fortes en début et fin de volume ‎

‎Ueber die Fraunhofer'schen Linien im Sonnenspectrum. (Mitgetheilt vom Hrn. verf. aus d. Oefversigt af K. vet. Acad. Förhandl."" 1861, No 8, nebst einem späteren Zusatz).‎

‎Leipzig, Johann Ambrosius Barth, 1862. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Vierte Reihe Bd. 27 (117), Stück Zwei, No. 10. The entire issue offered. Titlepage to vol. 27. Pp. 193-352 a. 1 engraved plate. Ångströms paper: pp. 290-302.‎

‎First appearance in German of Ångström's famous paper in which he announced the discovery of hydrogen in the atmosphere of the sun and in which he also confirmed the probable existence of of other elements there. The paper appeared in ""Oefversigt af K. Vet. Acad. Förhandl."" in 1861. The German paper here is expanded. At the same time it was translated into English and publishe as ""On the Fraunhofer Lines Visible in the Solar Spectrum"".Ångström was one of the early formulators of the science of modern spectroscopy" he wrote extensively on terrestrial magnetism, the conduction of heat, and especially spectroscopy. He published a monumental map of the normal solar spectrum that expressed the length of light waves in units of one ten-millionth of a millimeter, a unit of length now known as the angstrom. He discovered that hydrogen is present in the sun's atmosphere, and he was the first to examine the spectrum of the aurora borealis. ‎

‎Experimenta circa Effectum, etc. Expériences sur l'effet du conflict électrique sur l'aiguille animantée.‎

‎Paris, Crochard, 1820. Recent hcloth. Some repairs to inner margin of titlepage to ""Annales"". In ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago"" Tome XIV pp. 417-25. The whole volume present: 448 pp. and 3 folded engraved plates.‎

‎First French translation and the first translation of Oersted's epoch-making announcement in his Latin pamphlet ""Extperimenta circa effectum conflictus electrici in acun magneticam. Hafniæ, 1820"" (privately printed in a very small number, and only distributed to colleques in Europe). This discovery and confirmation of the connection between 2 forces, electricity and magnetism, must be considered one of the happiest events in the history of science, both with regard to scientific and practical results. - ""From the moment that Ørsted's discovery became known it created an enormous sensation. The results communicated were so astounding that they were received with a certain distrust, but they were stated with such accuracy that it could hardly be permitted to entertain any doubts. In the course of a short time the treatise was translated into all the chief languages."" (Kirstine Meyer). - Dibner:61 - PMM: 282 - Horblitt: 3 b. - Sparrow: 152.‎

‎Experimenta circa Effectum, etc. Expériences sur l'effet du conflict électrique sur l'aiguille animantée.‎

‎(Paris, Crochard, 1820). No wrappers. In ""Annales"". In ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago"" Tome XIV, Cahier 4, Titlepage to vol. 14 + pp. 337-442. (Entire issue offered). Ørsted's paper: pp. 417-25. A few scattered brownspots.‎

‎First French translation and the first translation of Oersted's epoch-making announcement in his Latin pamphlet ""Extperimenta circa effectum conflictus electrici in acun magneticam. Hafniæ, 1820"" (privately printed in a very small number, and only distributed to colleques in Europe). This discovery and confirmation of the connection between 2 forces, electricity and magnetism, must be considered one of the happiest events in the history of science, both with regard to scientific and practical results. - ""From the moment that Ørsted's discovery became known it created an enormous sensation. The results communicated were so astounding that they were received with a certain distrust, but they were stated with such accuracy that it could hardly be permitted to entertain any doubts. In the course of a short time the treatise was translated into all the chief languages."" (Kirstine Meyer). - Dibner:61 - PMM: 282 - Horblitt: 3 b. - Sparrow: 152.‎