‎Thé‎

Thèmes parents

‎Gastronomie‎

Nombre de résultats : 506,695 (10134 Page(s))

1 ... 11 12 13 [14] 15 16 17 ... 1462 2907 4352 5797 7242 8687 10132 ... 10134

‎"WILSON, C.T.R. - THE MOST ORIGINAL AND WONDERFUL INSTRUMENT IN SCIENTIFIC HISTORY - WILSON'S CLOUD CHAMBER.‎ ‎Über die Expansionsapparat zur Sichtsbarmachung der Bahnen ionisierender Teilchen in Gasen, und über einige mittels dieses Apparats gewonnene Ergebnisse. Mit 23 Figuren im Text und auf 5 Tafeln. (Eingegangen 6. Oktober 1912). (On an Expansion Apparatu...‎ ‎Leipzig, S. Hirzel, 1913. 8vo. Orig. printed wrappers, no backstrip. Wrappers loose. In ""Jahrbuch der Radioaktivität und Elektronik"", 10. bd., Heft 1. Pp. 1-138 (entire issue offered). Wilson's paper: pp. 34-54, textillustrations, showing apparatus and 5 photographic plates, showing ionizing by Alpha-, Beta- and Röntgen- radiation).‎ ‎Together with the English version - published 1912 in the Proceedings of the Royal Society - this is Wilson's main paper relating ""that the track of an ionizing particle might be made visible and photographed by condensing water of the ions which is liberated"". The first trails were obtained in 1911 where he submitted a short note of this to the Proceedings. In the offered paper he published the first tracks made by the ionizing particles of alpha, beta and Röntgen-rays. This, Wilson Cloud-Chamber, became an extremely valuable instrument of fundamental research, the discovery of the positron in 1932 and the kaon in 1963 were made by using cloud chambers as detectors.""But the whole course of the particle appears infinitely more clearly by the method invented by C.T.R. Wilson in 1911 and named after him. The radiation is allowed to enter an expansion-chamber, containing a gas saturated with water vapour. A sudden expansion of the chamber cools the gas, and cloud-drops are then formed instantly around the ions produced along the tracks of the particles. By suitable illumination these tracks can be made to stand out clearly as if they had been described by luminous projectiles. The ""Altmeister"" of modern nuclear physics, Lord Rutherford, once called the Wilson chamber ""the most original and wonderful instrument in scientific history"".""Thomson Rees Wilson (1869-1959), a Scottish physicist, is credited with inventing the cloud chamber. Inspired by sightings of the Brocken spectre while working on the summit of Ben Nevis in 1894, he began to develop expansion chambers for studying cloud formation and optical phenomena in moist air. Very rapidly he discovered that ions could act as centers for water droplet formation in such chambers. He pursued the application of this discovery and perfected the first cloud chamber in 1911. In Wilson's original chamber the air inside the sealed device was saturated with water vapor, then a diaphragm is used to expand the air inside the chamber (adiabatic expansion). This cools the air and water vapor starts to condense. When an ionizing particle passes through the chamber, water vapor condenses on the resulting ions and the trail of the particle is visible in the vapor cloud. Wilson, along with Arthur Compton, received the Nobel Prize in Physics in 1927 for his work on the cloud chamber. (Wikipedia).‎ Référence libraire : 45816	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"EULER, J. ALBERT. - THE LAW OF BILLIARD TRAJECTORIES - THE PHYSICS OF THE BILLIARD BALL.‎ ‎Recherches des Mouvemens d'un Globe sur un Plan horizontal. (1.-) Seond Mémoire. (2 Papers).‎ ‎(Berlin, Haude et Spener, 1765 u. 1767). 4to. No wrappers, as issued in ""Mémoires de l'Academie Royale des Sciences et Belles-Lettres"" 1758, tome XIV a. XVI, pp. 284-353 a. 2 folded engraved plates + pp. 261-284 a. 1 folded engraved plate.‎ ‎First printing of Johann Albert Euler's importent paper in which he set forth the so-called ""Theorem of Johann-Albert Euler"", stating that the trajectory of a ball is a parabola followed by a straight line. The eldest son of Leonhard Euler was a prominent geometer in his own right. In 1758, Johann-Albert Euler (1734-1800) published a study of the motion of a sphere on an horizontal plane in the presence of Newtonian friction. His main result would be rediscovered independently by Gaspard Coriolis as part of his authoritative theoretical work on the topic: Théorie mathématique des effets du jeu de billard (1835). Johann Albrecht Euler, born in St. Petersburg 1732 was a Swiss-Russian astronomer and mathematician and he was the first child born to the great Swiss mathematician Leonhard Euler.‎ Référence libraire : 45862	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎BERNOULLI, JOHN. - THE CENTER OF OSCILLATION.‎ ‎Nouvelle Theorie du Centre D'Oscillation. Contenant une Regle pour déterminer dans les Pendules composés & balancans non-seulement dans la vuide, mais aussi dans les liqueeurs" laquelle Regle est appuyée sur un fondement plus seûr qu'aucun qu'on a...‎ ‎(Paris, L'Imprimerie Royale, 1717). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences. Année 1714"". Pp. 208-229, 7 textfigs.‎ ‎First appearance of this importent paper in which John Bernoulli gives his famous solution to the question of the center of oscillation. The solutions of Bernoulli and Brook Taylor were in principle identical and became an occasion of a grat dispute between these two eminent mathematicians.‎ Référence libraire : 45866	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €201.45 Acheter
‎"EULER, LEONHARD. - ON THE PRINCIPLE OF LEAST ACTION.‎ ‎Réfléxions sur quelques Loix génerales de la Nature qui s'observent dans les Effets des Forces quelconques. (Reflection on some general laws of nature which are observed in the effects of random forces).‎ ‎(Berlin, Haude et Spener, 1750). 4to. No wrappers as issued in ""Mémoires de l'Academie Royale des Sciences et Belles-Lettres"" Tome IV, Année 1748. Pp. (189-) 218 and 1 engraved plate.‎ ‎First appearance of this paper, in which Euler proves that given the static principle, he can derive the equilibrium conditions for a fluid, and from these, he obtains the integrability conditions for a ""Pfaffian"" form in three variables. He also looks at the equilibrium of a weight suspended from three elastic cords by looking, via analogy, to a special case of the problem for fluids.""In his 1748 paper, Euler in ""Reflexions sur quelques loix generales de la nature.."" starts by declaring his commitment to the least-action principle. His expression corresponds to what we would now call potential energy, so that his statement of least action (formulated by Maupertuis in 1746) in statics is equivalent to the principle that a system of bodies at rest will adopt a configuration that minimizes total potential energy. Euler called this quantity ""effort"".""Enestrom: E 146.‎ Référence libraire : 45871	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €241.74 Acheter
‎WATT, GREGORY. - THE CRYSTALLIZATION HYPOTHESIS.‎ ‎Observations on Basalt, and on the Transition from the vitreous to the stony Texture, which occurs in the gradual Refrigeration of melted Basalt" with some geological Remarks. In a Letter from Gregory Watt to theRight Hon. Charles Greville. Read May 1...‎ ‎(London, W. Bulmer and Co., 1804). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1804 - Part II. Pp.279-314. Some scattered,mostly marginal brownspots. Wide-margined.‎ ‎First appearance of the paper in which Watt set forth his ""Crystallization Hypothesis"".""The first hypothesis as to the origin of prismatic structure which which had any experimental or observational basis was that of Gregory Watt, and may be entitled ""crystallization hypothesis"". Whatt in 1804 observed (the paper offered) that a large mass of basalt which he had melted down in a reverbatory furnace crystallized radially from centers which were fairly regularly spaced in a horizontal plane"" the intersections of these radially growing fibrous bundles formed a network of hexagonal partings through the mass, leading Watt to the conclusion that this manner of crystallization, by its vertical extension upward from the base of a mass of basalt, must have been the cause of the prisms found in the Giant's Causeway, Fingal's Cave, and elsewhere."" (Robert B. Sosman in ""Types of Prismatic Structure in Igneous Rocks"", p. 215).‎ Référence libraire : 45877	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €134.30 Acheter
‎"HERSCHEL, WILLIAM. - THE DYNAMICAL THEORY OF STARS AND NEBULAE.‎ ‎Astronomical Observations relating to the Construction of the Heavens, arranged for the Purpose of a critical Examination, the Result of which appears to throw some new Light upon the Organization of the celestial Bodies. Read June 20, 1811.‎ ‎(London, W. Bulmer and Co., 1811). 4to. No wrappers as extracted from ""Philosophical Transactions"" Year 1811-Part II. With titlepage to vol. II. 269-336 and 2 engraved plates showing the shapes of 42 nebulae and star-clusters. Some brownspots to margins of the plates, otherwise clean and wide-margined.‎ ‎First appearance of a milestone papers in cosmology in which Herschel demonstrates the irregular distribution of the stars in space, and ""for the first time recognized that the clusters in and near the Milky Way really belonged to it, and were not independent systems that happened to lie in the same direction as seen by us.""(Berry, Short History of Astronomy, p. 340).""In 1811 and 1814 he published a complete theory of a possible process wherby the shining fluid consisting a diffused nebula might gradually condense - the denser portions of it being centres of attraction - first into a denser nebula or compressed star cluster, then into one or more nebulous stars, lastly into a single star or group of stars. Every supposed stage in this process was abundantly illustrated from records of actual nebulae and clusters which he had observed.""(Berry).‎ Référence libraire : 45879	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €470.05 Acheter
‎"HERSCHEL, WILLIAM. - DETRONING THE SUN AS THE CENTER OF THE UNIVERSE.‎ ‎On the Direction and Velocity of the Motion of the Sun, and the Solar System. Read May 16, 1805.‎ ‎(London, W. Bulmer and Co., 1805). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1805 - Part II. Pp. 233-256 a. 1 engraved plate, folded. Clean and fine.‎ ‎First printing of an importent paper in cosmology in which Herschel's by analyzing a large number of stars, believed that he could explain the regularities he observed by assuming that the sun itself was moving toward a point in the consellation of Hercules. ""Just as Copernicus had detroned the earth as the motionless center of the universe, so Herschel detroned the sun.""(Asimov). - In this paper he tries to estimate the speed of the sun's motion.In a memoir published in 1783 Herschel had been occupied with the possibility that the sun was moving relative to the stars. ""More than 20 years later (1805, in the paper offered) Herschel took up the question again, using six of the brightest stars in a collection of the proper motions of 36 published by Maskelyne in 1790, which were much more reliable than any earlier ones, and employing more elaborate processes of calculation" again the apex was placed in the constellation of Hercules, though at a distance of nearly 30 degr. from the position given in 1783. Herschel's results were avowedly to a large extent speculative and were received by contemporary astronomers with a large measure of distrust" but a number of far more elaborate modern investigations of the same subject have confirmed the general correctness of his work.""(Berry ""A Short History of Astronomy"", p. 346.).‎ Référence libraire : 45882	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"HERSCHEL, WILLIAM. - THE BASIS OF INTERFEROMETRIC IMAGING IN ASTRONOMY.‎ ‎Experiments for ascertaining how far Telescopes will enable us to determine very small Angles, and to distinguish the real from the spurious Diameters of celestial and terrestrial Objects: with an Application of the Result ofthese Experiments to a ser...‎ ‎(London, W. Bulmer and Co., 1805). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1805 - Part I. Pp. 31-64 and 1 engraved plate. Clean and fine.‎ ‎First appearance of an importent paper, founding the metric of interstellar space.It was the contemporous discoveries of the first minor planets, ceres in 1801, Pallas in 1802 and Juno in 1803, that prompted Herschel to investigate the origin of the spurious diameters of stars. ""Were their apparent diameters as real as those of planets or spurious as for stars? To address this question Herschel conducted an extensive series of experiments in his garden in Slough, examining through his telescope small globules of differing sizes and materials placed in a tree some 800 ft (ca. 244 m) away (Herschel 1805). His observations showed that for the smallest globules the diameters were all spurious and all of the same size. Furthermore, he found that, if just the inner part of the aperture of the telescope were used, the spurious diameters, whether of globules or of stars, were larger. If the whole aperture was employed, the diameters were smaller, and if only an outer annular aperture was used the diameters were smaller still. This experimental discovery that unfilled apertures can be used to obtain high angular resolution remains today the essential basis for interferometric imaging in astronomy (in particular Aperture Masking Interferometry). The theoretical justification of this result came with Airy's analysis of the diffraction pattern of a circular aperture 30 years later (Airy 1835), and it took a further 30 years before the idea of using multiple apertures was developed. In an early study the Reverend W. R. Dawes noted that he had frequently found great advantage from the use of a perforated whole aperture' and that when observing Venus this produced a central image of the planet perfectly colourless, and very sharply dened' (Dawes 1866). But it was left to Fizeau, in his submission to the Commission for the Prix Bordin the following year, to remark on une relation remarquable et n´ecessaire entre la dimension des franges et celle de la source lumineuse' and suggest that by using an interferometric combination of light from two separated slits il deviendra possible d'obtenir quelques donn´ees nouvelles sur les diametres angulaires de ces astres' (Fizeau 1868).""‎ Référence libraire : 45883	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €470.05 Acheter
‎DAVY, HUMPHRY - THE DISCOVERY OF POTASSIUM AND SODIUM.‎ ‎The Bakerian Lecture, on some new Phenomena of chemical Changes produced by Electricity,particularly the Decomposition of the fixed Alkalies, and the Exhibition of the new substances which constitute their bases" and on the general Nature of alkaline ...‎ ‎(London, W. Bulmer and Co., 1808). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1808 - Part I. Pp. 1-44. Clean and fine, wide-margined.‎ ‎First printing of this importent historical paper in chemistry, in which Davy shows that electricity is capable of decomposing some alkalies, isolating two new substances and discovering potassium and sodium. Neville in his Historical Chemical Library vol. I, p.340, writes about this paper ""ONE OF THE GREAT CLASSIC RESEARCHES IN CHEMISTRY, in which Davy announced in this, his second Bakterian lecture, the isloation of metallic potassium and sodium by the electrolytic decomposition of their fused oxides.""""He (Davy) began his own electrical experiments...The results were spectacular. On October 6, 1807, the current passing through molten potash liberated a metal, which Davy called potassium. The little globules of shining metal tore the water molecule apart as it eagerly recombined with oxygen and the liberated hydrogen burst into lavender flame. Davy danced about in a delirium of joy. A week later he isolated sodium from soda.""(Asimow). The paper offered here describes these discoveries.""Humphry Davy was one of the most brilliant chemists of the early nineteenth century. His early study of nitrous oxide brought him his first reputation, but his later and most importent investigations were devoted to electrochemistry. Following Galvani's experiments and the discovery of the voltaic pile, interest in galvanic electricity had become widespread. The first electrolysis by means of the pile was carried out in 1800 by Nicholson and Carisle, who obtained oxygen and hydrogen from water. Davy began to examine the chemical effects of electricity in 1800, and his numerous discoveries were presented in his Bakerian lecture to the Royal Society on November 20, 1806.(A Source Book in Chemistry p. 243). - Wheeler Gift: 2514.‎ Référence libraire : 45884	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €1,141.55 Acheter
‎DAVY, HUMPHRY. - ISOLATION OF BARIUM, MAGNESIUM, CALCIUM AND STRONTIUM FOR THE FIRST TIME.‎ ‎Electro-Chemical Researches, on the Decomposition of the Earth" with Observations on the Metals obtained from the alkaline Earths, and on the Amalgam procured from Ammonia. Read June 30th, 1808.‎ ‎(London, W. Bulmer and Co., 1808). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1808 - Part I. Pp. 333-370.‎ ‎First printing of a historical paper in chemistry, his third Bakerian Lecture, in which he obtained for the first time, by means of electrolysis, the metals barium, magnesium, calcium and strontium. He further utilized the strong reducing power of potassium to prepare boron.""Humphry Davy was one of the most brilliant chemists of the early nineteenth century. His early study of nitrous oxide brought him his first reputation, but his later and most importent investigations were devoted to electrochemistry. Following Galvani's experiments and the discovery of the voltaic pile, interest in galvanic electricity had become widespread. The first electrolysis by means of the pile was carried out in 1800 by Nicholson and Carisle, who obtained oxygen and hydrogen from water. Davy began to examine the chemical effects of electricity in 1800, and his numerous discoveries were presented in his Bakerian lectures."" - Not in Wheeler Gift. - The Ronalds Library p. 128.‎ Référence libraire : 45885	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €470.05 Acheter
‎"MUDGE, WILLIAM. - FIRST MEASUREMENT OF AN ARC OF THE MERIDIAN IN ENGLAND.‎ ‎An Account of the Measurement of an Arc of the Meridian, extending from Dunnose, in the Isle of Wright, Latitude ....,to Clifton in Yorkshire, Latitude.., in the coursee of the Opertions carried on foor the Trigonometrical Survey of England, in the ye...‎ ‎(London, W. Bulmer and Co., 1803). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1803 - Part II. Pp. 383-508 and 8 engraved plates (3 folio size and folded, 1 map), depicting the apparatus for measuring. 4 plates with some marginal brownspots.‎ ‎First appearance of an importent paper, which contributed to the discussion of the dimension of the earth. William Mudge was appointed in 1791 to the ordnance trigonometrical survey, and became superintendent of the survey in 1798 and in that same year was also elected as a Fellow of the Royal Society. Shortly afterwards, he completed the first ever measurement of an arc of meridian stretching from Dunnose on the Isle of Wight to Clifton in Yorkshire. This was regarded as a very considerable advance in the scientific work of what had by then become the Ordnance Survey and contributed significantly to the international debate about the precise figure of the earth.‎ Référence libraire : 45886	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €201.45 Acheter
‎"DAVY, HUMPHRY - THE DISCOVERY OF HYDROGEN TELLURIDE.‎ ‎The Bakerian Lecture for 1809. On some new Electrochemical Researches, on various Objects, particularly the metallic Bodies, from the Alkalies, and Earth, and on some Combinations of Hydrogene. Read November 16, 1809.‎ ‎(London, W. Bulmer and Co., 1810). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1810 - Part I. Pp. 16-74 and 2 engraved plates showing Davy's electrochemical apparatus for decomposing substances, Davy's versions of the Voltaic-pile.. Plates a bit brownspotted, otherwise clean and fine, wide-margined.‎ ‎First appearence of this historical chemical paper, Davy' fifth Bakerian Lecture, in which he announced his discovery of hydrogen telluride.""Mr. Davy having from the commencement of his electro-chemical researches, communicated the several steps of his progress to the Society (The Royal Society), takes the present opportunity of reporting the results of his further inquiries under four principal heads. First, on the nature of the metals of the fixed alkalis. Second, on the nature of Hydrogen and composition of ammonia. Thirdly, on the metals of the earth"" and Fourthly he makes a comparison between the antiphlogistic doctrine, and a modified phlogistic hypothesis.""(Abstract). He further gives arguments for considering potassium and sodium, which he discovered in 1808, as a element.""Humphry Davy was one of the most brilliant chemists of the early nineteenth century. His early study of nitrous oxide brought him his first reputation, but his later and most importent investigations were devoted to electrochemistry. Following Galvani's experiments and the discovery of the voltaic pile, interest in galvanic electricity had become widespread. The first electrolysis by means of the pile was carried out in 1800 by Nicholson and Carisle, who obtained oxygen and hydrogen from water. Davy began to examine the chemical effects of electricity in 1800, and his numerous discoveries were presented in his Bakerian lectures."" - Wheeler Gift: 2518.Also with William Hyde Wollaston ""The Croonian Lecture. Read November 16, 1809.(On Muscular Action - On Sea-Sickness - On the salutary Effects of Riding, and other Modes of Gestation). Pp. 1-15.‎ Référence libraire : 45887	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €604.35 Acheter
‎"HELMHOLTZ, HERMANN Von. - THE RESOLUTION LIMIT OF THE MICROSCOPE.‎ ‎Die theoretische Grenze für die Leistungsfähigkeit der Mikroskope. (The Theoretical Limit of the Efficiency of Microscopes).‎ ‎Leipzig, J.A. Barth, 1874. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Jubelband. With titlepage to ""Jubelband"". Titlepage with a stamp. Pp. 557-584‎ ‎First appearance of a fundamental paper in modern optics in which Helmholtz published his discovery of the resolution limit of the microscope. He found that the limit for the difference of magnitude that we are able to distinguish plainly is in general found equal to half the wave-lenght of theparticular light employed. A further increase in optical power beyond that of the best modern instruments does not therefore seem possible.‎ Référence libraire : 45923	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"BARON, (THÉODORE). - THE COMPOSITION OF BORAX.‎ ‎Examen Chymique d'un Sel apporté de Perse, sous le Nom de Borech, avec des réflexions sur une Dissertation latine concernant la même matière, dédiée à la Société Royale de Londres.‎ ‎(Paris, Imprimerie Royale, 1755). 4to. Extract from ""Mémoires de Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome II. Pp. 412-434.‎ ‎First printing of one of the 2 papers in which baron finally settled the composition of Borax. He showed that Borax is formed by the combination of soda with the substance (boric acid) previously called se sédatif.‎ Référence libraire : 45935	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €67.15 Acheter
‎"DE GEER, (CHARLES). - ON THE GLOW-WORM.‎ ‎Mémoire sur un Ver luisant femelle, et sur sa Transformation.‎ ‎(Paris, Imprimerie Royale, 1755). 4to. Extract from ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome II. Pp. 261-275 and 1 engraved plate.‎ ‎First printing of De Geer's study of the Glow-worm.‎ Référence libraire : 45937	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €67.15 Acheter
‎"OUTHIER, ABBÉ R. ET (PIERRE-CHARLES) LE MONNIER. - MAP OF THE PLEIADES.‎ ‎Carte des Pléyades, dont la position de trente-cinq principales étoiles est déterminée par les observations de M. le Monnier, faites en 1744, 1745, 1746 & 1748. Les autres étoiles qui suivent, ont été placées par estime des distances & par des alignem...‎ ‎(Paris, Imprimerie Royale, 1755). 4to. Extract from ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome II. Pp. 607-608 and 1 folded engraved map ""Carte dee Etoiles des Pleiades ajoutées a celles qui ont etes observées par Mr. le Monnier, suivant divers Alignements &c. par Mr. l'abbé Outhier"" (ca. 25x19 cm.).‎ ‎First printing of Le Monnier's famous star map of the Pleiades.‎ Référence libraire : 45938	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €201.45 Acheter
‎"LINDNER, DAVID JONATHAN. - ILLUSTRATING THE BIBLE IN 100 LARGE ENGRAVINGS.‎ ‎The holy Scripture of the old and new testament in one hundred copper-plates represented accordingly to the order of the books in the bible. With historical explanations. Translated into English by J.A.E. Schmidt.‎ ‎Leipzig, Edward Kummer, 1836. Small folio-oblong. (23x37 cm.). Contemp. modest hcloth. Boards rubbed. (4),27 pp. in double-columns with description of the plates. Before the plates an engraved titlepage with the text: ""Biblia Sacra Veteris et Novi Testamenti representata Centum Imaginibus Aeri incisis in Forma dimidii Plagulae transverssae, una cum Expositione dilucidativa. Augustae Vindelicorum. Prostat apud Antonium Klauber. MDCCCXXXV"". With 100 large engraved plates. (Plates sign. C.P.S.C.M. - Klauber Cath. Sc. et exc. A.V.). A bit of browning to edges of text and plates. Otherwise internally fine.‎ Référence libraire : 45942	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €604.35 Acheter
‎"CASSINI, J. - DISCOVERY OF THE INCLINATION OF A SATELITTE.‎ ‎Nouvelles Decouvertes sur les Mouvements des Satellites de Saturne.‎ ‎(Paris, L'Imprimerie Royale, 1717). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences. Année 1714"". Pp.361-378 and 1 folded engraved plate.‎ ‎First printing of the paper in which Cassini describes his discovery of the inclination of the orbit of Saturn's fifth satellite.‎ Référence libraire : 45962	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €161.16 Acheter
‎"BREGUET, ANTOINE. - THE THEORY OF THE GRAMME MACHINE.‎ ‎Recherches sur la Théorie de la Machine de Gramme, sur la Cause de la Position dissymétrique de ses Frotteurs, et incidement, Étude des Écrains magnetiques.‎ ‎Paris, G. Masson, Imprimerie Gauthier-Villars, 1879. 8vo. Contemporary half calf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of title-page. In ""Annales de Chimie et de Physique"", Cinquiéme Series - Tome XVI. 576 pp. a. 2 folded plates. (Entire volume offered). Breguet's paper: pp. 5-48 a. 1 large folded engraved plate.‎ ‎First edition of this importent paper giving the first physical theory of the Grammo machine's magnetic function. - Wheeler Gift No. 3990.A Gramme machine, Gramme ring, Gramme magneto, or Gramme dynamo is an electrical generator which produces direct current, named for its Belgian inventor, Zénobe Gramme, and was built as either a dynamo or a magneto. It was the first generator to produce power on a commercial scale for industry.‎ Référence libraire : 45987	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €134.30 Acheter
‎"ØRSTED (OERSTED), H.C. & FOURIER, (JEAN BAPTISTE JOSEPH). - COINING THE WORD 'THERMO-ELECTRIC""‎ ‎Sur quelques nouvelles Expériences thermo-électriques faites par M. le Baron Fourier et M. Oersted.‎ ‎Paris, Crochard, 1823. No wrappers. In: ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", tome 22 (Cahier 4), With titlepage to vol. 22. Pp. 337-444. (Entire issue offered). Oersted & Fourier's paper: pp. 375-389 and 1 folded engraved plate. showing apparatus used.‎ ‎First appearance of this importent paper - which can bee seen as the precursor of OHM'S LAW - in which Ørsted explains the experiments he did together with Fourier on the thermo-electric effects discovered by Seebeck. They proved with different experiments, that the effect depended solely on the heating of the plates in the voltaic arrangements. Ørsted calls Seebech's observations ""the most beautiful of the discoveries which have as yet grown out of mine (his discovery of electromagnetism three years before)""""We learn from his letters that thet the experiments on which the paper was founded had taken him 3 weeks, a space of time which evidently much too short for the performance of the work" thus Ørsted himself points out a fundamental flaw in the experiments, but there has been no time to remedy it. The work is of interest, both by what has been gained through it, and by what does not plainly appear" in some of its results it is the precursor of Ohm's law and by its defects it shows how great was the feat of the actual discovery of this law.""(Kirstine Meyer).The offered issue contains further Poisson ""Sur le Phénomene des anneaux colorés"", pp. 337-347., Ørsted ""Sur le Multiplacateur électro-magnetique de M. Schweigger, et sur quelques applications qu'on en a faites"", pp. 358-365, Ampère ""Extrait d'une Lettre de M. Ampère à M. Faraday"", pp. 389-400.‎ Référence libraire : 45991	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €268.60 Acheter
‎"LAURENT, AUGUSTE. - CLEARING THE CONCEPTS EQUIVALENTS, ATOMS AND MOLECULES.‎ ‎Recherches sur les Combinaisons Azotées.‎ ‎Paris, Victor Masson, 1846. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", Troisieme Series - Tome 18. 512 pp. and 2 folded engraved plates. Laurents paper: pp. 266-298. Somewhat brownspotted.‎ ‎First printing of this classic work in the history of organic chemistry in which Laurent made clear ""the distinction between equivalents, atoms and molecules, by attaching to these terms meanings similar to those given to them at the present day. Like Avogadro and Ampère, Laurent regarded the molecules of hydrogen, of oxygen, of chlorine, etc., as consisting of two atoms and of forming ""homogenous Compounds"" which could then give rise to ""heterogenous compounds"" by double decomposition -(HH) + (CICI) = (HCI) + (HCI) - as had long before been pointed out by Avogadro.""(Findley ""A Hundred Years of Chemistry"", p. 32.""A founder of modern organic chemistry, Laurent was one of the most important chemists of the nineteenth century. He considered the behavior of matter to be a manifestation of its intimate internal structure, which one cannot determine with certainty but which one has to investigate if one wants to understand. Laurent’s preoccupation was to construct a method that could guide the chemist forward along this path, from facts to their causes. He was the first chemist to intimately associate crystallo-graphic data and chemical studies. Louis Pasteur and Charles Friedel later followed the way.""(DSB).‎ Référence libraire : 45993	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €201.45 Acheter
‎"GIESEL, F. (FRIEDRICH OSKAR). - THE CONCENTRATION OF RADIUM AND POLONIUM.‎ ‎Einiges über die Verhalten des radioactiven Baryts und über Polonium. (+) Ueber die Ablenkbarkeit der Becquerelstrahlen im magnetischen Felde. (2 Papers).‎ ‎Leipzig, J.H. Barth, 1899. Contemp. hcalf. Gilt spine. Slightly rubbed. Light wear to spine ends. In ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 69. VIII,875 pp. and 8 plates. (Entire volume offered). Small stamp on title and verso of. Internally clean and fine. Giesel's papers: pp. 91-94 and pp. 834-836.‎ ‎First edition of an early and importent paper in the study of radioactivity, explaining how to prepare radium compounds, and thus being the first to place preparations of pure radium bromide on the market.The second paper offered, contains the first proof that Becquerel rays could be deflected by a magnet.Giesel ""A past master at the art of extracting and preparing pure substances in phytochemistry, after the Curies’ 1898 discovery of polonium, he applied his craft to radiochemistry. By 1900 he had developed an improved method of fractional crystallization, producing a greater concentration of radium salts in a shorter time, by using bromide instead of chloride. One direct result of his highly influential efforts, by which pure radium bromide became commercially available for research, was the 1903 verification by William Ramsay and Frederick Soddy of the production of helium from radium. Giesel was the first to observe the decomposition of water by radium salts.""(DSB).When his close friends and nearby colleagues Julius Elster and Hans Geitel obtained inconclusive results regarding magnetic influence upon Becquerel rays, Giesel provided a key to these rays’ non-X-ray character by his decisive proof of their magnetic deflectability in October 1899.‎ Référence libraire : 46000	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"REGNAULT, V. (HENRI VICTOR) et J. REISET. - INSPIRING JULES VERNE - THE ""RESPIRATORY QUOTIENT""‎ ‎Recherches chimiques sur la Respiration des Animaux des diverses Classes.‎ ‎(Paris, Victor Masson, 1849). Without wrappers. In: ""Annales de Chimie et de Physique"", Troisieme Series - Tome 26. Cahier 3-4. Pp. 299-528 a. 2 folded engraved plates, showing apparatus used.(Entire issues offered). The joint paper takes up both issues. With half-title to tome 26.‎ ‎First appearance of this classic paper, which contains extensive comparative studies of respiration and calorimetry. They refined Lavoisier's experiments on measuring the oxygen uptake and carbon dioxide production of animals and calculated the first good ratios of what came to be called the ""RESPIRATORY QUOTIENT"". It was the use of the apparatus and methods developed here, that enabled scientists the world over to gain some understanding of utilization of energy by many different animals.The inspiration for the space age scientific novel by JULES VERNE ""De la Terre a la Lune"" (1865) was based on the methods described by Regnault and Reiset in this paper to provide oxygen and remove carbon dioxide produced by men, dogs and chickens in the ""projectile"". The paper is cited several times in this famous novel.The species study in the Regnault and Reiset collaboration included warm-blooded animals, such as dogs, cats, and rabbits as well as hibernating and non-hibernating marmots. Cold-blooded animals , such as frogs, salamanders, reptiles and lizards were also described...In over 100 experiments their assays included the effects of temperature, season, diet, level of nutrition, compositionof air, sex, hibernation, age, body weights and other variables onrespiratory exchange and nitrogen exhalation or absorption (Based on W. Flatt & W. Payne).Garrison & Morton: 932.‎ Référence libraire : 46006	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €470.05 Acheter
‎"FOURCROY, VAUQUELIN & SEGUIN. - THE SYNTHESIS OF WATER.‎ ‎Mémoire sur la Combustion du Gaz Hydrogene. Lu à l'Academie Royale des Sciences, le 21 Mai 1790.‎ ‎Paris, Rue et Hotel Serpente, 1791. 8vo. Contemporary half calf. Gilt spine. In: ""Annales de Chimie: ou Recueil de Mémoires Concernant la Chimie et les Arts qui en Dépendent. Par MM. de Morveau, Lavoisier, Monge, Berthollet, De Fourcroy, le Baron de Dietrich, Hassenfratz & Adet."" Tome Huitieme. (2),336 pp. The entire volume offered. The paper: pp. 230-308. A few scattered brownspots. Small stamps on verso of titlepage.‎ ‎First appearance of the paper in which the authors records a series of experiments on the combustion of hydrogen, the aim of which was to confirm Lavoisier's large scale experiments on the synthesis of water. They finally proved that water only contains hydrogen and oxygen, and found the approximate ratio of their weights.""In May 1790 Séguin read to the Académie des Sciences the report on the larg-scale synthesis of water carried out in Fourcroy’s laboratory by himself, Fourcroy, and Vauquelin. The purpose of this experiment was to establish finally that water is composed only of hydrogen and oxygen and that the weight of water is fully accounted for by the weights of the two gases. They also sought to determine accurately the combining ratio of the components of water, an especially important constant in oxygen chemistry. They found that the ratio hydrogen: oxygen is 2.052:1 by volume and 14.338:85.662 by weight. (The discrepancies from the true figure probably arose from the difficulties of weighing the gases.)""(DSB).Apart from other importent chemical papers by Fourcroy, Seguin, Klaproth etc., the volume contains Joseph Black's famous letter to Lavoisier, where Black gives up his phlogistic theory and accepts the new chemistry, lead by Lavoisier. ""Copie d'une Lettre de M. Joseph Black a M. Lavoisier"", pp. 225-229.‎ Référence libraire : 46011	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"LANGLEY, S.P. - INVENTION OF THE BOLOMETER.‎ ‎Le Bolomètre. Mémoire lu devant la Societe Mét´rorologique américaine, décembre 1880.‎ ‎Paris, Imprimerie Gauthier-Villars, 1881. 8vo. Contemporary half calf, raised bands, gilt spine. Light wear along edges. Two small stamps on verso of title-page, and one on verso of the plates. In ""Annales de Chimie et de Physique"", Cinquiéme Series - Tome XXIV. 576 pp. + 2 folded plates. Langley's paper: pp. 275-284, textillustrations.‎ ‎First French edition of the paper in which Langley describes the function of his invention of the bolometer for measurements of the cosmic microwave background radiation. A bolometer is a device for measuring the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent electrical resistance.""Correctly recognizing the need for measurements of the energy of radiation as a function of wavelenght, Langley developed a new instrument ""the bolometer"" between 1879 and 1881 to do this......The superior measurements by means of the bolometer, the newly discovered extent of the solar spectrum, and the new results for selective absorption of the earth’s atmosphere were significant contributions to the study of the sun and its effects on the earth.""(DSB).Langley was awarded the Nobe l in physics in 1908.The volume conatins also Gabriel Lippmann (Nobel Prize 1908) ""Princiope de la Coservation de L'électricité"", pp. 145-178 and Crooke's famous paper (in French) ""Sur la viscosité des Gaz trés raréfies"", pp. 476-547 with 1 plate.‎ Référence libraire : 46019	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €134.30 Acheter
‎"BERTHOLLET, CLAUDE LOUIS. - PREPARING THE WAY FOR THE ATOMIC THEORY IN CHEMISTRY.‎ ‎Recherches sur les lois de l'affinité. (+) Suite des Recherches... (+) Suite des Recherches... (+) Suite des Recherches... (+) Suite des recherches.. (5 Parts).‎ ‎Paris, Chez Fuchs, An IX(1801). Boundin 3 contemp. hcalf. Gilt spuines. Light wear along edges. In: ""Annales de Chimie, ou Recueil de Mémoires concernant la Chemie"" Tome 36, 37 and 38. (Entire volumes offered). 336"330,(2)"334,(2) pp. and 5 engraved plates. Berthollet's paper: pp. 302-317, pp. 151-181, 221-252, pp. 3-29, 113-134.‎ ‎Together with the memoir printed at the same time in ""Mémoires de l'Institut.."" this is the first appearance of B's groundbreaking work on the nature of chemical affinity and the fact that many factors influence chemical reactions, comparing chemical affinity to the force of gravity. The paper was at the end of the year published separately.The theory set forth here ""led directly to Prout's investigations which yielded a knowledge of definite chemical proportions and thus played a very importent part in preparing the way for the development of the Atomic Theory on which the whole modern chemistry is based.""(Duveen, p. 75).""Berthollet read a memoir on the general theory of affinities while he was still in Egypt. This was the starting point of his complete new system of chemistry, first briefly sketched in Recherches sur les lois de l’affinité (1801) and later developed into the comprehensive, two volume Essai de statique chimique. Here he attempted to provide a proper basis for chemistry, so that its experimental results could be viewed in the light of theoretical first principles. Berthollet developed a theory and a model adequate for the understanding and the interpretation of the rapidly growing body of chemical knowledge in his time. He was aware that the positive work of constructing a new theory had yet to be performed after the shock of Lavoisier’s criticism of the old chemistry.(DSB).Parkinson ""Breakthroughs"", 1801 C.‎ Référence libraire : 46023	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €671.50 Acheter
‎"ØRSTED (OERSTED), H.C. - THE DISCOVERY OF ELECTROMAGNETISM - FIRST ANNOUNCEMENT IN FRENCH.‎ ‎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.‎ Référence libraire : 46026	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €2,484.55 Acheter
‎"SAVART, FELIX. - THE RATIONALIZED VIOLIN AND THE PHYSICS OF THE VIOLIN.‎ ‎Sur la Communication des mouvemens vibratoires entre les corps solides.‎ ‎(Paris, Crochard, 1820). No wrappers. In ""Annales"". In ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago"" Tome XIV, Juin issue, pp. 113-222. (Entire issue offered with halftitlepage to vol. 14). Savart's paper: pp. 113-172 and 3 folded engraved plates. Plates with some scattered brownspots.‎ ‎First printing of a pioneer paper on the acoustics of the violin and on the construction of the Trapezoidal Fiddle.""In his earliest work Savart gave the first explanation of the function of certain parts of the violin. To learn how vibrations are transmitted from the strings to the rest of the instrument, he induced vibrations in a free wood plate by passing a vibrating string over a bridge at its center" he also used Chladni’s sand-pattern technique to observe the resulting nodal lines. Savart showed that the bridge transmits the string’s vibrations that the plate can be made to vibrate at any frequency" and that the corresponding mode is a modification of an unforced mode. He demonstrated that the sound post also serves to transmit vibrations, and he explained that it therefore should not be placed under a nodal line. Thinking that symmetry and regularity would produce the best tone, Savart built a trapezoidal violin with rectangular sound holes. When the instrument was played before a committee that included Biot, the Composer Cherubini, and other members of the Academy of Sciences and the Académie des Beaux-Arts, its tone was judged as extremely clear and even, but somewhat subdued.""(DSB).The issue also contains Eilhard Mitscherlich' famous paper in the first French version ""Sur la Relation qui existe entre la forme cristalline et les proportions chimiques"", pp. 172-190.‎ Référence libraire : 46029	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €376.04 Acheter
‎"BERZELIUS, JÖNS JACOB. - ONE OF THE MOST IMPORTENT WORKS IN THE HISTORY OF CHEMISTRY - THE FRENCH VERSION.‎ ‎Essais sur les proportions déterminées dans lesquelles se trouvent réunis les élémens de la nature inorganiques. (+) Suite des experiences sur les proportions déterminées, d'après lesquelles les élémens de la nature inorganique s'unissent... (In all...‎ ‎Paris, Chez J. Klostermann fils, 1811-12. Bound in 6 contemp. hcalf. Gilt spines, slightly rubbed. Wear to top of spines. In: ""Annales de Chimie, ou Recueil de Mémoires concernant la Chemie"" Tome 78, 79, 80, 81, 82 and 83. (Entire volumes offered). The 14 parts: (Tome 78:) pp. 5-37, 105-132, 217-242. - (Tome 79:) pp. 113-142, 233-264. - (Tome 80:) pp. 5-37, 225-258. - (Tome 81:) pp. 5-36, 278-303. - (Tome 82:) pp. 5-33, 113-125, 225-72. (Tome 83:) pp. 5-35 a. pp. 117-127. With in all 3 engraved plates. Some scattered brownspots.‎ ‎The papers represents one of the first announcements of Berzelius' discovery of the fixed chemical proportions, determining the weights and valencies of the various constituent elements in inorganic compounds. The papers were published at the same time in Swedish, German (both here in Annalen and in Schweiger's Journal), and in French. By running many hundreds of analysis of chemical compounds he gave so many examples of the law of definite proportions that the world of chemistry could no longer doubt its validity, and in so doing he gave experimental evidence to the atomic theory. He hereby laid a solid fundation for the further development of chemistry. A reprint is found in Ostwald's Klassiker der exakten Wissenschaften, No. 35.According to Söderbaum (Jac. Berzelius, 2, p.12) ""It was a giant work, one of the most importent in the history of chemistry, which was here presented. One is even more impressed when one remembers that it was a pioneer undertaking in every sense of the term. Analytic and synthetic methods existed before Berzelius' time, to be sure, but there were no precise methods of the sort which he required. They all had to be elaborated at the cost of time and labour.""(J. Erik Jorpes ""Jac. Berzelius"", p.45).""In general Berzelius's efforts were directed toward the consolidation and extension of the atomic theory. He improved chemical analysis and determined the composition of a large number of compounds, thus verifying the laws of constant and multiple proportions and furnishing the most accurate equivalent weights then available. By ingenious methods he arrived at the correct atomic composition of most common substances, and thus was enabled to draw up (in 1826) a table of atomic weights very nearly identical with the modern one.""(Leicester & Klicktein ""A Source Book in Chemistry"", p. 258).Parkinson ""Breakthroughs"", 1810-20 C.‎ Référence libraire : 46030	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €1,678.75 Acheter
‎"UNVERDORBEN, OTTO. - THE DISCOVERY OF ANILINE.‎ ‎Ueber das Verhalten der organischen Körper in höheren Temperaturen.‎ ‎Leipzig, Johann Ambrosius Barth, 1826. Contemp. hcalf. Gilt spine. A few scratches to spine. In ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Bd. 8. (10),526 pp. and 3 folded engraved plates. Small stamps onverso of titlepage. (Entire volume offered). Unverdorben's paper: pp. 253-265, 397-410, 477-487. Clean and fine.‎ ‎First appearance of the paper in which Unverdorben describes the method by which he discovered Aniline, which became so importent in the manufacture of dyes, plastics, and pharmaceuticals. ""Aniline (from the Portugese anil, applied to indigo, and derived from the Arabic an-nil, the blue substance), was first obtained by Unverdorben by heating indigo, and was given the name 'crystalline'. In 1841 Carl Julius von Fritzsche (1807-71), an assistant to Mitscherlich and, later, a member of the Academy of Sciences in St. petersburg, obtained the same compound from anthranilic acid, which was produced by the action of caustioc alkalis on indigo, and called it 'aniline'... in 1843 Hofmann showed that the three substances, crystalline, aniline and benzidam, were identical with the base isolated from coal tar.""(Findlay ""A Hundred years of Chemistry"", p. 134).Parkinson ""Breakthroughs"" 1826 C.The volume contains other importent papers Antoine Jerome Balard ""Ueber eine besondere Substanz im Meereswasser"" in which he describes his discovery of the element BROMINE, first German edition, pp. 114-124 a. pp. 319-336. (Parkinson ""Breakthroughs"" 1826 C.). And Eilhard Mitscherlich ""Ueber eine neue Klasse von Krystallformen"", pp. 427-442.‎ Référence libraire : 46031	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"SAVART, FELIX. - THE RATIONALIZED VIOLIN AND THE PHYSICS OF THE VIOLIN.‎ ‎Sur la Communication des mouvemens vibratoires entre les corps solides.‎ ‎Paris, Crochard, 1820. Uncut with orig. printed wrappers (Juin-issue). In ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago"" Tome XIV, Juin issue, pp. 113-222. (Entire issue in orig. wrappers). Savart's paper: pp. 113-172 and 3 folded engraved plates.‎ ‎First printing of a pioneer paper on the acoustics of the violin and on the construction of the Trapezoidal Fiddle.""In his earliest work Savart gave the first explanation of the function of certain parts of the violin. To learn how vibrations are transmitted from the strings to the rest of the instrument, he induced vibrations in a free wood plate by passing a vibrating string over a bridge at its center" he also used Chladni’s sand-pattern technique to observe the resulting nodal lines. Savart showed that the bridge transmits the string’s vibrations that the plate can be made to vibrate at any frequency" and that the corresponding mode is a modification of an unforced mode. He demonstrated that the sound post also serves to transmit vibrations, and he explained that it therefore should not be placed under a nodal line. Thinking that symmetry and regularity would produce the best tone, Savart built a trapezoidal violin with rectangular sound holes. When the instrument was played before a committee that included Biot, the Composer Cherubini, and other members of the Academy of Sciences and the Académie des Beaux-Arts, its tone was judged as extremely clear and even, but somewhat subdued.""(DSB).The issue also contains Eilhard Mitscherlich' famous paper in the first French version ""Sur la Relation qui existe entre la forme cristalline et les proportions chimiques"", pp. 172-190.‎ Référence libraire : 46032	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €470.05 Acheter
‎"VARIGNON, (PIERRE). - VARIGNON'S MANOMETER COINING THE WORD 'MANOMÉTRE'‎ ‎Manometre, ou Machine pour trouver le raport des raretés ou raréfaction de l'Air naturel d'un même lieu en différens tems, ou de différens lieux en un même ou en différens tems, &c.‎ ‎(Paris, Jean Boudot, 1706). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences"". Année 1705. Pp. 300-331, textillustrations.‎ ‎First apperance of this importent paper in which Varignon describes the function and theory behing his invention of the manometer, a term which he coined in this paper. 'Manometre' from Greek (manos + metron) = sparce measure.Stitched together is another importent paper JOSEPH TOURNEFORT ""Observations sur les Maladies des Plantes"", pp. 332-345 in which he made the first classification of plant diseases.‎ Référence libraire : 46059	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €241.74 Acheter
‎"WOLLASTON, WILLIAM HYDE. - THE INVENTION OF THE FIRST PHOTOGRAPHIC CAMERA LENS.‎ ‎On a Periscopic Camera Obscura and Microscope. Read June 11, 1812.‎ ‎London, W. Bulmer and Co., 1812. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1812. With titlepage to the year 1812 - Part I. Pp. 370-377. Light yellowing to titlepage.‎ ‎First appearance of the paper in which Wollaston explains his invention and function of photography's first lens, the Wollaston Meniscus, invented more than 25 years before the first photography appeared.""Wollaston developed the first lens specifically for camera lens called Wollaston's meniscus lens, or just meniscus lens, in 1812. The lens was designed to improve the image projected by the camera obscura. By changing the shape of the lens, Wollaston was able to project a flatter image, eliminating much of the distortion that was a problem with many of that day's biconvex lenses"" (DSB).‎ Référence libraire : 46063	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎SOUTH, JAMES. - THE SECOND STAR CATALOGUE.‎ ‎Observations of the apparent distances and positions of 458 double and triple Stars, made in the Years 1823, 1824, and 1825" together with a re-examination of 36 Stars of the samer description, the distances and positions of which were communicated in...‎ ‎London, W. Nicol, 1826. 4to. ""Philosophical Transactions"" 1826 - Part I. With titlepage to Part I. (2),391,,XVIII pp. Titlepage with a stamp on verso. A faint brownspots to p. 1. One leaf a bit creased.‎ ‎First printing of South's second large star catalogue of the distances and positions of double and triple stars.""Double stars, essentially discovered by Wiiliam Herschel, were of great interest throughout the nineteenth century—new ones being found and position measurements made more precise with each improvement in telescope construction. South, working with John Herschel during the years 1821–1823. reobserved the double stars charted originally by William Herschel, mainly for the purpose of detecting position changes. Their observations helped verify the newly recognized orbital motion of these neighboring stars. Their resulting catalog of 380 double stars, presented to the Royal Society in 1824, earned them the gold medal of the Astronomical Society and the grand prize of the Institut de France. For his second catalog of double stars, two years later, South was awarded the Copley Medal of the Royal Society.""(DSB).‎ Référence libraire : 46064	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €248.45 Acheter
‎SOUTH, JAMES. - THE SEVEN-FEET TRANSIT INSTRUMENT DESCRIBED.‎ ‎On the discordances between the Sun's observed and computed Right Ascensions, as determined at the Blackman-street Observatory, in the years 1821 to 1822" wih Experiments to show that they did not originate in instrumental derangement. Aklso a descrip...‎ ‎London, W.Nicol, 1826. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1826 - Part III. With titlepage to Part III.Pp. 423-482 and 3 engraved plates, of which 2 are larger and folded. A faint dampstain to margins of plates.‎ ‎James South "" fitted up an observatory attached to his house in Blackman Street, Borough, with two equatoreals of respectively five and seven feet focal length, besides a first-rate transit instrument by Troughton Here he observed, jointly with John Frederick William Herschel, 380 double stars. In presenting him with the gold medal of the Astronomical Society in 1826, Francis Baily spoke of his ‘princely collection of instruments, such as have never yet fallen to the lot of a private individual’. In 1835 South removed his five-foot telescope to Passy, near Paris, where he came to know Humboldt and Arago, and convinced Laplace of the reality of revolving stars by ocular demonstration in the case of 70 Ophiuchi. He executed there in a few months what Herschel called ‘a noble series of measures’ on 458 compound stars, of which 160 were new " and for these labours, together with his paper ‘On the Discordances between the Sun's observed and computed Right Ascensions,’ presented to the Royal Society on 8 June 1826 (the paper offered), was awarded the Copley medal in 1826. He was elected a member of the Royal Society in 1821.‎ Référence libraire : 46067	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €161.16 Acheter
‎"HOME, EVERARD. - THE REPRODUCTION OF THE OYSTER.‎ ‎The Croonian Lecture for 1826. (An enquiry into the mode by which the propagation of the species is carried on, in the common oyster, and in the large fresh-water muscle). read November 16, 1826.‎ ‎London, W.Nicol, 1827. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1827 - Part I. Pp. 39-48 and 4 fine engraved plates. The palets having a faint dampstai to lower part of inner margins.‎ ‎First printing of a classic study on the reproduction of the oyster.‎ Référence libraire : 46071	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €67.15 Acheter
‎"BARLOW, PETER. - THE FIRST ""BARLOW LENS""‎ ‎An account of a Series of experiments made with the view to the construction of an achromatic telescope with a fluid concave lens, instead of the usual lens of flint glass. In a letter adressed to Davies Gilbert.... Read January 17, 1828.‎ ‎(London, Richard Taylor, 1828). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1828 - Part I. Pp. 105-112.‎ ‎First appearance of the paper in which Barlow described his invention of the so-called first ""Barlow-Lens"".He constructed his first achromatic telescope lens by enclosing liquid carbon disulfide between two pieces of glass. The Barlow- lens has come into general use for increasing the eyepiece power of any optical instrument.‎ Référence libraire : 46089	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €134.30 Acheter
‎"SABINE, EDWARD. - THE ARCTIC EXPEDITIONS.‎ ‎An account of experiments to determine the acceleration of the Pendulum in different Latitudes. Read March 8, 1821.‎ ‎(London, W.Bulmer and W. Nicol, 1821). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1821 - Part I. Pp. 164-190 a. 5 folded tables.‎ ‎First appearance of the paper in which Sabine relates his discoveries with the pendulum on his 2 voyages, the first on John Ross' expedition in 1818 - relating observations from Island of Brassa, Shetland, Hare Island, London - and from the second voyage with William Parry on the arctic expedition - relating observations from Melville Island. From these observations he estimated the figure of the earth.""An artillery officer, Sabine was a graduate of the Royal Military Academy, Woolwich. While retaining his commission - Sabine eventually reached the rank of general - the started scientific work at the close of the Napoleonic Wars. On the recommendation of the Royal Society, he accompanied John Ross on an expedition to seek the Northwest Passage in 1818 and was with William Edward Parry on his 1819-1820 Arctic expedition. From the latter voyage. he said, came the idea of a great ship-borne expedition of “physical discovery” to the southern hemisphere.""(DSB).‎ Référence libraire : 46092	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €114.15 Acheter
‎"WHEWELL, W. - THE FOUNDATION OF MATHEMATICAL CRYSTALLOGRAPHY.‎ ‎A general Method of Calculating the Angles made by any Planes of Chrystals, and the Laws according to which they are formed. Read November 25, 1824.‎ ‎(London, G. and W. Nicol, 1825). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1825 - Part I. Pp. 87-130 and 2 engraved plates with many figs. Upper right corner dampstained, mostly on the first page and here only slightly touching a few letters.‎ ‎First appearance of this importent paper in which Whewell gave crystallography a mathematical foundation.""In a paper read before the Royal Society in 1824, Whewell, according to Herbert Deas, ""laid the foundations of mathematical crystallography."" His system for calculating the angles of planes of crystals assumed that crystals are aggregates of small rhomboids that can be thought to shrink below the level of possible measurement, thus suggesting that crystals are latticelike. In 1825 Whewell visited Mohs in Germany. In 1828, the year in which Whewell became professor of mineralogy, he published a revision of Mohs’s system of mineralogical classification.""(DSB).‎ Référence libraire : 46098	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €248.45 Acheter
‎"HERSCHEL, J.F.W. (JOHN FREDERICK WILLIAM). - THE ""HERSCHEL CONDITION"" INTRODUCED.‎ ‎On the aberration of compound lenses and object-glasses. Read March 22, 1821.‎ ‎London, W. Bulmer and W. Nicol, 1821. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1821 - Part I. With titlepage to Part I. Pp. 222-267 a. 1 engraved plate. Verso of titlepage with 2 stamps.‎ ‎First appearance of this importent paper in optical theory in which Herschel described how to free lenses from the aberration for two axis points, one of which is infinitely distant. It is known as Herschel's condition. ""Sir John Herschel gave the condition which must be satisfied in order that a symmetrical optical system, free from spherical aberration for two conjugate axial points, may also be free from spherical aberration for two neighbouring and conjugate points upon the axis of the system" but Herschel's condition applies only to first order aberration, i.e. to aberration depending upon the cube of the inclination of the ray to the axis. Abbe shewed, later, that this condition could be included in a wider result, viz. that the spherical aberration, supposed zero, is stationary for axial variations provided that the incident and emergent rays for two conjugate axial points, associated with modified magnification m, satisfy the relation. (G.C. Stewart)‎ Référence libraire : 46100	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €241.74 Acheter
‎HILBERT, D. UND W. ACKERMANN. - THE FOUNDATION OF MODERN MATHEMATICAL LOGIC.‎ ‎Grundzüge der theoretischen Logik.‎ ‎Berlin, Springer, 1928. Orig. full cloth. Lower part of spine with loss of cloth. Lower right cornerof titlepage cut away, no loss of letters. VIII,120 pp.‎ ‎First edition. (Die Grundlehren der Mathematischen Wissenshaften in Einzeldarstellungen, Band XXVII). In the years 1917-22 Hilbert gave three seminal courses at the Univeristy og Göttingen on logic and the foundation of mathematics. He received considerable help in preperation and eventual write up of these lectures from Bernays. This material was subsequently reworked by Ackermann into the monograph 'Grundzüge der Theoretischen Logik' (the offered item). It containes the first exposition ever of first-order logic and poses the problem of its completeness and the decision problem ('Entscheidungsproblem'). The first of these questions was answered just a year later by Kurt Gödel in his doctorial dissertation 'Die Vollständigkeit der Axiome des logischen Funktionenkalküls'. This result is known as Gödel's completeness theorem. Two years later Gödel published his famous 1931 paper 'Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I' in which he showed that a stronger logic, capable of modeling arithmetic, is either incomplete or inconsistent (Gödel's second incompleteness theorem). The later question posed by Hilbert and Ackermann regarding the decision problem was answered in 1936 independantly by Alonzo Church and Allan Turing. Church used his model the lambda-calculus and Turing his machine model to construct undecidable problems and show that the decision problem is unsolvable in first-order logic. These results by Gödel, Church, and Turing rank amongst the most important contributions to mathematical logic ever.‎ Référence libraire : 46101	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €201.45 Acheter
‎KOSAY, HAMIT ZÜBEYR. - THE PULUR EXCAVATIONS.‎ ‎Keban Projesi Pulur Kazisi 1968-1970. Keban Project Pulur Excavations 1968-1970.‎ ‎Ankara, 1976. Folio. Orig. hcloth. With dustjacket, some tears to jacket. Frontispiece map. XVIII,237 pp., 121 plates (the last ab. 40 plates a bit creased in upper right corners), 5 colourplates. Asmall stamp to foot of titlepage.‎ Référence libraire : 46169	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €67.15 Acheter
‎"NITZE, MAX. - FOUNDING UROLOGY - THE FIRST TEXTBOOK IN UROLOGY‎ ‎Lehrbuch der Kystoskopie. Ihre Technik und klinische Bedeutung. Mit 6 Tafeln und 26 Abbildungen im Texte.‎ ‎Wiesbaden, J.F. Bergmann, 1889. Contemp. hcalf. Raised bands, gilt, titlelabel in leather with gilt lettering. Compartments richly blindtooled. A small crack to backhinge, board still holding. VIII,(1),319,(1) pp. 5 lithographed plates (numb. I-V, No. I in chromolitography) and 1 folded woodengraved plate (Tafel A). Internally fine and clean, but with some pencil undrlinings (easy toremove) and some underlinings in ink on the last leaves (from p. 304 ff).‎ ‎First edition of Nitze's important monograph on cystoscopy, which revolutionized the surgery of the bladder. The first edition is of renowned scarcity.""The invention of the cystoscope by Nitze revolutionized endoscopy but his true genius lay in his lifelong pursuit of better methods to diagnose and treat patients with urological diseases and in teaching others the practical use and value of cystoscopy. He also designed the first operating cystoscope, took the first endoscopic photographs and published the first textbook in urology... The legacy of discovery of Max Nitze established the specialty of urology and a legitimate claim as the father of urology"" (Harry W. Herr).Garrison & Morton: 4184.‎ Référence libraire : 46232	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €2,014.50 Acheter
‎HELGASON, JÓN.‎ ‎Árbækur Reykjavikur 1786-1936. 2. Utg. Jón Jóhannesson sá um útgáfuna.‎ ‎Reykjavik, H.F. Leiftur, u.år Ca. 1950). Solidt hshirtbd. VIII,424,(1) pp. samt en del plancher.‎ Référence libraire : 46298	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €60.43 Acheter
‎"CHRISTIE, S. HUNTER. - THE INVENTION OF ""THE WHEATSTONE BRIDGE""‎ ‎The Bakerian Lecture.- Experimental Determination of the Laws of Magneto-electric Induction in different masses of the same Metal, and of its Intensity in different Metals. Read Feb. 28, 1833.‎ ‎(London, Richard Taylor, 1833). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1833 - Part I. Pp. 95-142 a. 2 engraved plates (showing the apparatus, the Wheatstone Bridge).‎ ‎First appearance of the paper in which Christie describes his invention of the electrical circuit meant to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component. It was later (1843) improved and popularized by Charles Wheatstone, and then baptized ""Wheatsone's Bridge"". Wheatstone called the circuit a ""Differential Resistance Measurer."" ""Christie’s paper ""Experimental Determination of the Laws of Magneto-electric Induction"" was the Bakerian lecture for 1833. In it Christie showed that ""the conducting power, varies as the squares of [the wires’] diameters directly, and as their lengths inversely."" He also concluded that voltaelectricity, thermoelectricity, and magnetoelectricity are all conducted according to the same law, which lent further support to the theory that all these electricities are identical. In this paper (the paper offered) Christie also gave the first description of the instrument that came to be known as the Wheatstone bridge.""(DSB).‎ Référence libraire : 46365	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €335.75 Acheter
‎"ANDREWS, THOMAS. - THE ""CRITICAL TEMPERATURE"" OF GASES.‎ ‎The Bakerian Lecture. - On the Continuity of the Gaseous and Liquid States of Matter. Received June 14, - Read June 17, 1869.‎ ‎(London, Taylor and Francis, 1870). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1869 - Vol. 159 - Part II. Pp. 575-590 and 1 plate. Clean and fine.‎ ‎First apperance of the paper in which Thomas Andrews announces his discovery of the ""CRITICAL POINT"", which states that for every gas there was a temperature above which pressure alone could not liquefy it.""This was a crucial discovery for it pointed the way toward the liquefaction of the permanent gases by demonstrating the necessity of dropping the temperature below the critical point before exerting pressure. This new view led within half a century to the work of Dewar and Kammerlingh-Onnes and the liquefaction of all known gases.""(Asimov).Magie: A Source Book in Physics, pp. 187-192. - Parkinson, Breakthroughs: 1869 C.‎ Référence libraire : 46366	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €470.05 Acheter
‎WATT, GREGORY. - THE CRYSTALLIZATION HYPOTHESIS.‎ ‎Observations on Basalt, and on the Transition from the vitreous to the stony Texture, which occurs in the gradual Refrigeration of melted Basalt" with some geological Remarks. In a Letter from Gregory Watt to theRight Hon. Charles Greville. Read May 1...‎ ‎(London, W. Bulmer and Co., 1804). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1804 - Part II. Pp.279-314.‎ ‎First appearance of the paper in which Watt set forth his ""Crystallization Hypothesis"".""The first hypothesis as to the origin of prismatic structure which which had any experimental or observational basis was that of Gregory Watt, and may be entitled ""crystallization hypothesis"". Whatt in 1804 observed (the paper offered) that a large mass of basalt which he had melted down in a reverbatory furnace crystallized radially from centers which were fairly regularly spaced in a horizontal plane"" the intersections of these radially growing fibrous bundles formed a network of hexagonal partings through the mass, leading Watt to the conclusion that this manner of crystallization, by its vertical extension upward from the base of a mass of basalt, must have been the cause of the prisms found in the Giant's Causeway, Fingal's Cave, and elsewhere."" (Robert B. Sosman in ""Types of Prismatic Structure in Igneous Rocks"", p. 215).‎ Référence libraire : 46371	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €134.30 Acheter
‎"ANDREWS, THOMAS. - THE NATURE OF OZONE‎ ‎On the Constitution and Properties of Ozone. Received May 16, - Read June 21, 1855.‎ ‎(London, Taylor and Francis, 1856). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1856 - Vol. 146 - Part I. Pp. 1-13 a. 1 lithographed plates.‎ ‎First printing of Andrew's paper in which he shows, that ozone is oxygen in allotropic form.Andrews subsequently turned his attention to the problem of the constitution of ozone. This had been investigated by a number of chemists, including Schöonbein, its discoverer. Its nature was still unknown, however, and it was by no means certain that the ozone obtained from different sources was one and the same substance" it was thought by some to contain hydrogen. Andrews says his researches extended over four or five years, and he finally reached the conclusion that all the supposed varieties of ozone were identical and that it was in fact oxygen in an altered or allotropic condition.‎ Référence libraire : 46372	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €100.72 Acheter
‎"AIRY, B.G. (GEORGE BIDELL). - WEIGHTING THE EARTH.‎ ‎Account of Pendulum Experiments undertaken in the Harton Colliery, for the purpose of determining the Mean Density of the Earth. Received December 26, 1855, - Read January 24 and 31, 1856. (+) Supplement to the ""Account of Pendulum Experiments...."" "" ...‎ ‎(London, Taylor and Francis, 1856). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1856 - Vol. 146 - Part I. Pp. 297-342 a. pp. 343-355. Clean and fine.‎ ‎First printing of the paper in which Airy describes his remarkable experiments aiming at finding the density of the earth. His approach to the problem was to determine the differences of gravity at the top as well at the bottom of a suitable deep mine.""One of the most remarkable of Airy's researches was his determination of the mean density of the Earth. In 1826, the idea occurred to him of attacking this problem by means of pendulum experiments at the top and bottom of a deep mine. His first attempt, made in the same year, at the Dolcoath mine in Cornwall, failed in consequence of an accident to one of the pendulums. A second attempt in 1828 was defeated by a flooding of the mine, and many years elapsed before another opportunity presented itself. The experiments eventually took place at the Harton pit near South Shields in 1854. Their immediate result was to show that gravity at the bottom of the mine exceeded that at the top by 1/19286 of its amount, the depth being 383 m (1,256 ft) From this he was led to the final value of Earth's specific density of 6.566.[This value, although considerably in excess of that previously found by different methods, was held by Airy, from the care and completeness with which the observations were carried out and discussed, to be ""entitled to compete with the others on, at least, equal terms."" (The currently accepted value for Earth's density is 5.5153 g/cm.). (Wikipedia).‎ Référence libraire : 46373	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €161.16 Acheter
‎"AIRY, B.G. (GEORGE BIDELL). - THE FIGURE OF THE EARTH.‎ ‎On the Figure of the Earth. Read June 15, 1826.‎ ‎(London, W. Nicol, 1826). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1826 - Part II. Pp. 548-579. Clean and fine.‎ ‎Airy's classic paper on the figure of the earth.‎ Référence libraire : 46375	Livre Rare Book Herman H. J. Lynge & Son Copenhagen Denmark Dinamarca Dinamarca Danemark [Livres de Herman H. J. Lynge & Son] €67.15 Acheter

Nombre de résultats : 506,695 (10134 Page(s))

1 ... 11 12 13 [14] 15 16 17 ... 1462 2907 4352 5797 7242 8687 10132 ... 10134

Main

Thèmes parents