‎Émission de protons de grande vitesse par la substances hydrogénées sous l'influence des rayons gamma très pénétrants. (+) Effet d'absorption de rayons gamma de très haute fréquence par projection de noyaux légers. (+) Projections d'atomes par rayo...‎

‎Paris, Gauthier-Villars, 1932-33. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 194 and tome 197. - Tome 194: Nos 3,8,10,15 a. 25. - Tome 197: No 3. (6 entire issues offered). With titlepages to both volumes. The papers: pp. 273-275, 708-711, 876-877 a. 1 plate, 1229-1232, 2208-2211 a. 237-38 (tome 197). The issue no 25: pp. 2181-2248 lacks the first leaf, no affecting the paper. Titlepages with a faint stamp.‎

‎First printing of these papers of seminal importance to the evolution of particle physics - the results of these investigations immediately lead the way to the discovery of the neutron.They found that the 'Beryllium radiation', discovered by Bothe and Becker, ejected protons from a paraffin target. This discovery was amazing because photons have no mass. However, the Joliot-Curies interpreted the results as the action of photons on the hydrogen atoms in paraffin. They used the analogy of the Compton Effect, in which photons impinging on a metal surface eject electrons. The trouble was that the electron was 1,836 times lighter than the proton and, therefore, recoiled much more easily than the heavier proton after a collision with a gamma photon. When James Chadwick reported to Lord Rutherford on the Joliot-Curies’ results, Lord Rutherford exclaimed, ""I do not believe it!"" Chadwick immediately repeated the experiments at the Cavendish Laboratory in Cambridge, England. He not only bombarded the hydrogen atoms in paraffin with the beryllium emissions, but also used helium, nitrogen, and other elements as targets. By comparing the energies of recoiling charged particles from different targets, he proved that the beryllium emissions contained a neutral component with a mass approximately equal to that of the proton. He called it the neutron.‎

‎Développement, par pression, de l'èlectricité polaire dans les cristaux hémièdres à faces inclinées. Note de MM. Jacques et Pierre Curie, présentée par M. Friedel.‎

‎Paris, Gauthier-Villars, 1880. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 91, No 5 (entire issue offered). Pp. 251-310. The Curie's paper: pp. 294-295.‎

‎First apperance of the paper in which the two brothers announced their discovery of the Piezoelectric Effect, as they observed how an electric potential appeared across crystals of quartza and of Rochelle salt when pressure was applied to them. The potential varied directly with the pressure, and they named the phenomenon Piezoelectricity, meaning ""to press"" (Greek). Crystals with piezoelectric properties form an essential portion of sound-electronics devices such as microphones and record-players.""The applications of piezoelectric crystals are innumerable"" one of the most important is their use in frequency stabilization of oscillating electromagnetic cirasciots for radio broadcasting stations. They are used in most piezometers for measuring with great precision either very strong pressure variations, such as those of a cannon at the moment of firing, or very weak ones, such as artery pulsations. These applications have led to the creation of a new industry, the manufacture of large ""mono"" such as quartz obtained hydrothermally around 500°C. under high water pressures, or crystals such as Rochelle salt, obtained from aqueous solutions. These two substances were mentioned in the Curie brothers’ report announcing the discovery of piezoelectricity."" (DSB).""The first experimental demonstration of a connection between macroscopic piezoelectric phenomena and crystallographic structure was published in 1880 by Pierre and Jacques Curie. Their experiment consisted of a conclusive measurement of surface charges appearing on specially prepared crystals (tourmaline, quartz, topaz, cane sugar and Rochelle salt among them) which were subjected to mechanical stress. These results were a credit to the Curies' imagination and perseverance, considering that they were obtained with nothing more than tinfoil, glue, wire, magnets and a jeweler's saw."" (Piezo Systems, Inc.).Magee ""A Source Book in Physics"", p. 547 ff.‎

‎Rayons émis par les composés de l'uranium et de thorium. Presentée par M. Lippmann. Séance du Mardi 12 Avril 1898).‎

‎Paris, Gauthier-Villars, 1898. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 126, No 15). Entire issue offered. With htitle and titlepage to vol. 126. Pp. 1059-1110. Curie's paper: pp. 1101-1103. Clean and fine. A punched stamp in lower margin of title-page.‎

‎First printing of this milestone paper, being the first ""Note"" from Marie Curie about ""radioactivity"". This same ""Note"" contains a the fundamental observation: ""Two uranium ores... are much more active than uranium itself. This fact... leads one to believe that these ores may contain an element much more active than uranium."" This paper gives the first proof of the fact that radiation is an atomic property.""Henri Becquerel, discovered (1896) that uranium salts shielded from light for several months spontaneously emit rays related in their effects to Roentgen rays. Mme. Curie became enthusiastic about this subject filled with the unknown and, as she later acknowledged, involving no bibliographic research.The first step in the research was to determine whether there existed other elements capable, like uranium, of emitting radiation. Abandoning the idea of hyperfluorescence, couldn’t one calculate by electrical measurement the effects on the conductivity of air that were revealed by the gold-leaf electroscope? Pierre Curie and his brother Jacques had constructed an extremely sensitive apparatus to measure weak currents"" Mme. Curie employed it in testing both pure substances and various ores. In her first ""Note"" in the Comptes rendus""de l Académie des sciences (12 April 1898) she described the method that she followed throughout her life, the method that enabled her to make comparisons through time and crosschecks with other techniques:""I employed... a plate condenser, one of the plates being covered with a uniform layer of uranium or of another finely pulverized substance [(diameter of the plates, eight centimeters"" distance between them, three centimeters). A potential difference of 100 volts was established between the plates.]. The current that traversed the condenser was measured in absolute value by means of an electrometer and a piezoelectric quartz. In general she preferred the zero method, in which the operator compensates for the current created by the active material by manipulating the quartz. All of her students followed this procedure.""(DSB).The first results came in 1898: the measurements varied between 83 × 10-12 amperes for pitch blende to less than 0.3 × 10-12 for almost inactive salts, passing through 53 × 10-12 for thorium oxide and for chalcolite (double phosphate of uranium and copper). Thorium would thus be ""radioactive"" (the term is Mme. Curie’s" its radioactive properties were discovered at the same time, independently, by Schmidt in Germany. ‎

‎Rayons émis par les composés de l'uranium et de thorium. Presentée par M. Lippmann. Séance du Mardi 12 Avril 1898).‎

‎Paris, Gauthier-Villars, 1898. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 126, No 15). Entire issue offered. With htitle and titlepage to vol. 126. Pp. 1059-1110. Curie's paper: pp. 1101-1103.‎

‎First printing of this milestone paper, being the first ""Note"" from Marie Curie about ""radioactivity"". This same ""Note"" contains a the fundamental observation: ""Two uranium ores... are much more active than uranium itself. This fact... leads one to believe that these ores may contain an element much more active than uranium."" This paper gives the first proof of the fact that radiation is an atomic property.""Henri Becquerel, discovered (1896) that uranium salts shielded from light for several months spontaneously emit rays related in their effects to Roentgen rays. Mme. Curie became enthusiastic about this subject filled with the unknown and, as she later acknowledged, involving no bibliographic research.The first step in the research was to determine whether there existed other elements capable, like uranium, of emitting radiation. Abandoning the idea of hyperfluorescence, couldn’t one calculate by electrical measurement the effects on the conductivity of air that were revealed by the gold-leaf electroscope? Pierre Curie and his brother Jacques had constructed an extremely sensitive apparatus to measure weak currents"" Mme. Curie employed it in testing both pure substances and various ores. In her first ""Note"" in the Comptes rendus""de l Académie des sciences (12 April 1898) she described the method that she followed throughout her life, the method that enabled her to make comparisons through time and crosschecks with other techniques:""I employed... a plate condenser, one of the plates being covered with a uniform layer of uranium or of another finely pulverized substance [(diameter of the plates, eight centimeters"" distance between them, three centimeters). A potential difference of 100 volts was established between the plates.]. The current that traversed the condenser was measured in absolute value by means of an electrometer and a piezoelectric quartz. In general she preferred the zero method, in which the operator compensates for the current created by the active material by manipulating the quartz. All of her students followed this procedure.""(DSB).The first results came in 1898: the measurements varied between 83 × 10-12 amperes for pitch blende to less than 0.3 × 10-12 for almost inactive salts, passing through 53 × 10-12 for thorium oxide and for chalcolite (double phosphate of uranium and copper). Thorium would thus be ""radioactive"" (the term is Mme. Curie’s" its radioactive properties were discovered at the same time, independently, by Schmidt in Germany. ‎

‎Sur la radio-activité des sels de radium. (+) Sur la radio-activité provoquée par des sels de radium. (These 2 with Debierne). (+) Sur la constante de temps caractéristique de la disparition de la radioactivité induite par leradium dansune enceinte fe...‎

‎(Paris, Gauthier-Villars), 1901. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 133, No 5 and No 23. Pp. (969-) 1044 and pp. (909-) 966. The papers: pp. 276-279 + pp. 931-934 (both from vol. 133, and entire issues offered) + Tome 135, No 20. Pp. (821-) 880. (Entire issue offered). The paper: pp. 857-59. + Tome 136, No 4. Pp. (181-) 262. (Entire issue offered). The paper: pp. 223-226.‎

‎First printing of these four papers, constituting a revolution in time measuring, as Pierre Curie here defined a STANDARD FOR THE ABSOLUTE MEASURING OF TIME ON THE BASIS OF RADIOACTIVITY, and hereby departing from the relative measurements in geology and archaeology.After the discovery of Polonium and Actinium (1898 a. 1899 ) further discoveries followed. ""First came the announcement in 1899 by Marie Curie of induced radioactivity, brought about by the action of polonium or radium on inactive substances. The induced radioactivity persisted over a considerable period of time, a phenomenon of great concern to Pierre Curie. He took up the question with Debierne, with whom he published two papers in 1901(the first two papers offered)"" their experiments could be explained by Rutherford’s theory of emanation (radon), a radioactive gas emitted by radium. With J. Danne, Curie measured the diffusion coefficient of radium emanation in the air and proved, as Rutherford had done, that it liquefies at - 150°C. In order to clarify the nature of the emanation he studied the law of diminution of the activity of a solid after having removed it from a chamber in which a radium salt was present. In two notes presented to the Academy on 17 November 1902 and 26 January 1903 (the third and fourth papers offered), Curie showed that this activity diminishes according to an exponential law characterized by a time constant that, for the emanation, is equal to 5,752 days, regardless of the conditions of the experiment. The importance of this discovery, which marks the point of departure for all modern measurements of archaeological and geological dating, did not escape his, for at a meeting of the Société Française de Physidque in 1902 he defined a standard for the absolute measurement of time on the basis of radioactivity. Almost immediately Rutherford and Soddy showed that the exponential diminution was caused by the transmutation of radioactive elements."" (DSB. Pierre Curie).‎

‎Curse of the spawn. ‎

‎S.l., Semic, 1997-1999; in-8, broché, couverture illustr. Volumes suivant n°4/5/7/le prix du volume est de 6 euros.‎

‎Volumes suivant n°4/5/7/le prix du volume est de 6 euros.‎

‎ Ex-libris.‎

‎ Ex-libris (104*70mm). ‎

‎A VICEROY'S INDIA, Leaves from Lord Curzon's Note-Book‎

‎Sidgwick & Jackson. 1984. In-8. Relié. Bon état, Couv. convenable, Dos satisfaisant, Intérieur acceptable. 192 pages. Photo en couleur en frontispice (portrait). Illustré de nombreuses photos en noir et blanc et en couleur, dans et hors texte.. Avec Jaquette. . . Classification Dewey : 420-Langue anglaise. Anglo-saxon‎

‎By the Marquess Curzon of Kedleston. Edited by Peter KING. Intro. by Elizabeth LONGFORD. Classification Dewey : 420-Langue anglaise. Anglo-saxon‎

‎Tales of Travel.‎

‎London: Hodder and Stoughton, 1923 in-8, viii-344 pages, portrait frontispice (détaché), 26 illustrations hors texte dont une carte dépliante (Map of Afghanistan prepared and circulated by Amir Abdur Rhaman Khan). Index. Reliure percaline d'éd., plat décoré, rousseurs infimes, bel exemplaire. Edition originale. Notes de voyage en Tunisie, Afghanistan, Egypte, Zambèze, Sainte-Hélène Japon, Koweit, ...‎

‎Tales of Travel. (London: Hodder and Stoughton, 1923). [M.C.: voyages, Tunisie, Afghanistan, Egypte, Zambeze, Japon, Koweit, Sainte-Hélène, Napoléon]‎

‎SOUVENIRS DU CHEVALIER DE CUSSY Garde du Corps, diplomate et Consul Général 1795-1866. Publiés par le Comte Marc de Germiny. ‎

‎ 1909 2 volumes, reliure demi-chagrin vert olive (binding half shagreen) in-octavo (22,8 x 14,5 cm), reliure d'époque, dos 5 nerfs (spine with raised bands) insolé (le vert olive a viré au soleil en marron-clair)- entre-nerfs à fleuron au fer plein or (floweret with full blocking stamp) - titre frappé or (gilt title) et tomaison (volume numbering), papier marbré vert aux plats (cover with marbled paper), toutes tranches lisses (all edges smooth), orné d'un portrait en frontispice en héliogravure en noir,[4]-IV-417 et [4]-426 pages, 1909 Paris E. PLON, Nourrit et Cie Imprimeurs-Editeurs,‎

‎Tulard, 380, Bertier de Sauvigny, 294. Seuls les chapitres I à III concernent l'Empire : Entrée des alliés à Paris, Première Restauration et Cent-Jours. "Garde du corps en 1815, Ferdinand de Cussy ne suivit pas le roi à Gand mais revint dans l'armée après Waterloo pour s'engager dès l'année suivante dans la carrière diplomatique. D'abord en poste à Berlin où il connut Chateaubriand, et à Dresde, il devint directeur des consulats au ministère en 1825, consul à Bucarest en 1828, à Corfou en 1829. La Restauration occupe presque tout le premier volume et les 117 premières pages du second." (Bertier de Sauvigny). L'ouvrage est utile pour l'étude de l'histoire diplomatique de la Restauration et donne un bon tableau de la vie mondaine du temps. L'ouvrage se termine avec le coup d'état de Napoléon III en 1852.................trés bel exemplaire......................en bon état malgré le petit défaut signalé (very good condition in spite of the small defect indicated). ‎

‎Maxfield Parrish and the American Imagists‎

‎The Wellfle et Press 2008 Fort In-4 à l’italienne, cart. éditeur illustré sous jaquette, 448pp. En anglais.‎

‎ Très bon état d’occasion ‎

‎Catalogus codicum hagiographicorum graecorum Germaniae Belgii Angliae‎

‎, Brepols - Harvey Miller, 1968 Hardcover. 423 p., 160 x 250 mm, Languages: Greek, Including an index. Fine copy. ISBN 17010130200.‎

‎Saints' Lives by Walter of Chatillon, Brendan, Alexis, Thomas Becket. Lives of Brendan and Alexis edited from London, British Library, MS. Cotton Vespasian D.ix. Thomas Becket edited from Vatican City, Biblioteca Apostolica Vaticana, MS. Reginensis latinus 344‎

‎, Brepols - Harvey Miller, 2002 Hardcover. VIII 104 p., 140 x 215 mm, Languages: English, Including an index. Fine copy. ISBN 9780888444776.‎

‎The Secret Cyclist‎

‎Yellow Jersey (5/2019)‎

‎LIVRE A L’ETAT DE NEUF. EXPEDIE SOUS 3 JOURS OUVRES. NUMERO DE SUIVI COMMUNIQUE AVANT ENVOI, EMBALLAGE RENFORCE. EAN:9781787290211‎

‎S.P.N. Cyrilli Archiepiscopi Hierosolymitani, Opera quae exstant omnia, accedunt Petri II, Timothei, Alexandrinorum praesulum, Apollinari Laodiceni, Diodori Tarsensis, Scripta vel scriptorum Fragmenta quae supersunt (1 Tome - Complet). Patrologiae Cursus completus. Series Graeca. Tomus XXXIII [ Patrologia Graeca Tome 33 - Cyrille de Jérusalem, Apollinaire de Laodicée, Diodore de Tarse, Pierre II d'Alexandrie, Timothée d'Alexandrie, Isaac l'ancien juif ]‎

‎Accurante et recognoscente J.P. Migne, 1 vol. in-4 reliure de l'époque demi-chagrin vert, dos à 4 nerfs dorés, Apud J.P. Migne, Petit-Montrouge, 1857, 1720 colonnes Rappel du Titre complet : S.P.N. Cyrilli Archiepiscopi Hierosolymitani, Opera quae exstant omnia, accedunt Petri II, Timothei, Alexandrinorum praesulum, Apollinari Laodiceni, Diodori Tarsensis, Scripta vel scriptorum Fragmenta quae supersunt (1 Tome - Complet). Patrologiae Cursus completus. Series Graeca. Tomus XXXIII [ Patrologia Graeca Tome 33 - Cyrille de Jérusalem, Apollinaire de Laodicée, Diodore de Tarse, Pierre II d'Alexandrie, Timothée d'Alexandrie, Isaac l'ancien juif ] ‎

10 Images

‎Rare exemplaire en bon état, bien relié, du tome 33 de la Patrologie grecque de Migne, bien complet des oeuvres de Saint Cyrille de Jérusalem, Apollinaire de Laodicée, Diodore de Tarse, Pierre II d'Alexandrie, Timothée d'Alexandrie, Isaac l'ancien juif Avec le texte grec et la traduction latine en regard (coupes très lég. frottées, ancien cachet de monastère, rares rouss., très bon état par ailleurs). Peu commun, surtout en si bon état. A rare, well-bound, and in good condition copy of Volume 33 of Migne's Greek Patrology, complete with the Works of Cyril of Jerusalem, Apollinaris of Laodicea, Diodorus of Tarsus, Peter II Bishop of Alexandria, Timotheus Bishop of Alexandria, Isaac the ex-Jew... With the Greek text and the Latin translation opposite.‎

‎Esclaves au paradis (1CD audio)‎

‎Vents d'ailleurs 2007 156 pages 23 8x1 6x24 6cm. 2007. Relié. 156 pages.‎

‎Très bon état‎

‎Esclaves au paradis (1CD audio)‎

‎Vents d'ailleurs 2007 156 pages 23 8x1 6x24 6cm. 2007. Relié. 156 pages.‎

‎Neuf‎

‎Esclaves au paradis (1CD audio)‎

‎Vents d'ailleurs 2007 156 pages 23 8x1 6x24 6cm. 2007. Relié. 156 pages.‎

‎Bon état‎

‎Philology in Turbulent Times. Joseph Bosworth, His Dictionary, and the Recovery of Old English‎

‎, Brepols, 2023 Hardback, xxx + 314 pages, Size:152 x 229 mm, Language: English. ISBN 9780888449108.‎

‎Summary This book situates Joseph Bosworth's A Dictionary of the Anglo-Saxon Language (1838) and its revised 1898 version in their cultural context, reconstructing their history from a wealth of archival materials. It opens up a larger investigation into the central role played by Bosworth's work in the birth and growth of Old English studies in the nineteenth century. And it examines the challenges faced by T. Northcote Toller in completing the revision of the Dictionary after Bosworth's death, as well as his compilation of its Supplement in 1921. Overall, this study aims to rectify widespread disciplinary ignorance of the Dictionary's conception, compilation, and publication, and to examine its impact on the development of the discipline. TABLE OF CONTENTS List of Figures Abbreviations Chronology PREFACE Recovering Bosworth-Toller INTRODUCTION Building a Lexicographical Empire in Turbulent Times CHAPTER 1 Dictionary Bosworth: The Making of a Lexicographer CHAPTER 2 Beginning: Origins, Sources, and Method of A Dictionary of the Anglo-Saxon Language (1838) CHAPTER 3 Compiling: Antiquarian Foundations CHAPTER 4 Collaborating: The Bosworth Syndicate, the New Philology, and the Battle over Method CHAPTER 5 Revising: Expanding the Lexicon, 1840-1876 CHAPTER 6 Ending: An Anglo-Saxon Dictionary Based on the Manuscript Collections of the Late Joseph Bosworth (1898) CHAPTER 7 Supplementing: T. Northcote Toller's An Anglo-Saxon Dictionary Supplement (1921) APPENDIX 1 The Bosworth Donation APPENDIX 2 Sources: A Dictionary of the Anglo-Saxon Language (1838) APPENDIX 3 Bodleian Library Entry Books, 1813-1875 APPENDIX 4 Holograph Drafts of A Dictionary of the Anglo-Saxon Language (1838) Bibliography Index of Manuscripts and Archival Collections General Index‎

‎Dizionario tecnico e nautico di marina, Nautisch-technisches Wörterbuch der Marine, 1. Band und Ergänzung zum 1. Band. Deutsch, Italienisch, Französisch und Englisch - Italienisch, Deutsch, Französisch und Englisch - Dictionnaire technique et nautique de marine multilingue Tome 1 seul‎

‎ 1883 Pola : direzione del periodico "Mittheilungen aus dem Gebiete des Seewesens, 1883. "Verlag der Redaktion der "Mittheilungen aus dem Gebiete des Seewesens", Pola] kl.4°, OLn. mit reichlich schwarz- und goldgeprägten Titeln. 1.Band: XV + 1248 Seiten, 1883. 1. Ergänzungsband: bringt die Terminologie der seit zwanzig Jahren aufgetauchten Neuerungen, Tome 1 seul :XV + 1248 p, Fort IN4 cartonnage bleu decoré editeur,dos à ancre,texte à 2 colonnes multilingues,bon etat .Le tome 2 parut en 1910‎

‎ Remise de 20% pour toutes commandes supérieures à 200 €‎

‎FRENCH LANDSCAPE. THE MODERN VISION 1880 - 1920,‎

‎, New York, The Museum of Modern Art, 1999**, Pictorial softcover, frontispice, 230 x 285mm., 143pp., 136 illustrations, including 45 in color and 28 in duotone. ISBN 0870700278.‎

‎This volume examines different styles of representing landscape throughout four decades (1880-1920) and investigates the changing attitudes of the artists and their approach to diverse locations in works that range from Atget to Seurat. Paintings, documentary photographs, plus maps and topographical descriptions of locations depicted. Book is new.‎

‎UN FAISEUR DE BOÊTES (boites) A THÉ, A CANISTER-MAKER - LES COSTUMES ET METIERS DE CHINE, COSTUMES CHINOIS, planche n° 53. Gravure‎

‎Londres W. Miller 1799 32.5 x 25 cm COSTUMES CHINOISGravure sur cuivre au petit point, rehaussée couleur. Gravure de J. DADLEY d'après PU QUA. Vendue avec sa planche de texte recto en anglais et verso en français de George henry MASON. Publiée en mai 1799 par W. MILLER, Old Bond Street, Londres.Cette gravure est une véritable gravure ancienne. Se méfier de certaines gravures dites "artistiques" qui ne sont en fait que des procédés de reproduction faites avec des imprimantes jet d'encre de très fine qualité !32.5 x 25 cm‎

‎Envoi sous carton plat par lettre recommandée avec assurance ; pour plusieurs gravures les frais d'envoi sont comptés une seule fois. Remise possible pour l'achat de plusieurs lots. Bon état avec des traces de scotch au dos Remises possibles sur les achats en lot, achetez plusieurs objets à la fois ! Reçoit sur rendez-vous pour consultation des ouvrages.‎

‎Son exigence Gaster.Roman nutritif, humoristique.Le ventre gouverne le monde.‎

‎ Montluçon, imp. Deneuvy, s.d. (1920), 1 br., 4ème couverture manquante. in-8 de 292 pages, dessins de Maurice Rondest ; ‎

‎Récit érotique et gastronomique.[...] 1re pipe. - Défloré. - Adultère. - Patisseries, glaces, fromages, fruits. - Etude des boissons: bière, cidre, rôle du vin, liqueur. - Epices, café, thé, aphrodisiaques et ana, tabac. - Gaz intestinaux. - Esthétique gastronomique. - L'amour libre. - Prémices préconjugales. Etc... ‎

‎Le Daguerréotype.(Analyse de la communication faite à l'Academie par M. Arago).‎

‎Paris, Crochard et Comp., 1839. Orig. printed yellow wrappers (no backstrip). In 'Annales de Chimie et de Physique', 2e series, Volume 71, Juillet- issue, pp. 225-352 (entire July-issue offered with orig. wrappers and titlepage to vol. 71). Arago's paper: pp. 313-340.‎

4 Images

‎First printing of probably the first (the Juillet issue of Annales) official announcement of Daguerre's invention of the photographic process. The paper offered here preceeded the official report in Comptes Rendues which was published at the end of 1839 (in the July-December issue). The first report of on the discovery was presented to the Royal Academy on January 7, 1839 and delivered in full on August 19, 1839 (and printed in the July-Dec. issue of Comptes Rendues). The paper also preceeded Daguerre's own publication of 1839 ""Historique et description du daguerréotypie...""In 1839 Arago took a personal interest in announcing and popularizing the inventions of Niepce and Daguerre, who were awarded government pensions as a result of Arago’s recognition of their inventions’ potential significance.""In 1829 Daguerre went into partnership with Niepce, who had managed to produce images by the action of light some three years earlier but had failed to make the process really practical. Daguerre carried on and began to use copper plates on which silver salts were deposited. ight was made to focus upon that and an image was formed. The light portions of the image darkened the salts, while the shadowy portions left them unaffected. The unchanged salt was dissolved away by sodium thiosulfate (a process that had been suggested by John Herschel and a permanent image of sorts was left behind.""(Asimov).Together with JEAN CHARLES PELTIER ""Mémoire sur la Formation des Tables des Rapports qu'il y entre la Force d'un Courant électrique et la Déviation des aiguilles des multiplicateurs"" suivi de Recherches sur la Causes de Pertubation des couples thermo-électriques..."", pp. 225-313.‎

‎Le Daguerréotype.(Analyse de la communication faite à l'Academie par M. Arago).‎

‎Paris, Crochard et Comp., 1839. Contemp. hcloth. Gilt lettering to spine. In 'Annales de Chimie et de Physique', 2e series, Volume 71. (4),445,(3) pp. (Entire volume offered). Arago's paper: pp. 313-340. The first and last leaves with some browning. A few scattered brownspots.‎

‎First printing of probably the first (in the Juillet issue of Annales) official announcement of Daguerre's invention of the photographic process. The paper offered here preceeded the official report in Comptes Rendues which was published at the end of 1839 (in the July-December issue). The first report of on the discovery was presented to the Royal Academy on January 7, 1839 and delivered in full on August 19, 1839 (and printed in the July-Dec. issue of Comptes Rendues). The paper also preceeded Daguerre's own publication of 1839 ""Historique et description du daguerréotypie...""In 1839 Arago took a personal interest in announcing and popularizing the inventions of Niepce and Daguerre, who were awarded government pensions as a result of Arago’s recognition of their inventions’ potential significance.""In 1829 Daguerre went into partnership with Niepce, who had managed to produce images by the action of light some three years earlier but had failed to make the process really practical. Daguerre carried on and began to use copper plates on which silver salts were deposited. ight was made to focus upon that and an image was formed. The light portions of the image darkened the salts, while the shadowy portions left them unaffected. The unchanged salt was dissolved away by sodium thiosulfate (a process that had been suggested by John Herschel and a permanent image of sorts was left behind.""(Asimov).‎