‎Thé‎

‎"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

‎"HENRY, JOSEPH - THE DISCOVERY OF SELF-INDUCTION.‎

‎On the Influence of a Spiral Conductor in increasing the Intensity of Electricity from a Galvanic Arrangement of a Single Pair, &c.‎

‎(London, Richard and John E. Taylor, 1837). No wrappers. Extracted fron ""Scientific Memoirs, selected from The Transactions of Foreign Academies of Science and Learned Societies. Edited by Richard Taylor."", Vol. I. Pp. 540-547.‎

‎Henry's milestone paper announcing his discovery of electrical self-induction. ""Henry independently discovered electro-magnetic induction and in this paper announced his discovery of electric self-induction, one of the prime properies of an electro-magnetic circuit. Henry was an eminent experimenter but was casual in publishing his findings with resulting lack of recognition of his contributions.""(Bern Dibner).Dibner ""Heralds of Sciece"", No.63.It was also printed the same year in ""Transactions of the American Philosophical Society, New Series, Vol. 5"". The paper was later printed in ""Philosophical Magazine"", 1840.""The direction of Henry’s thought became somewhat apparent in his 1835 paper (refers to the papers reading before the American Phil. Soc., febr. 6th, 1835) on the action of a spiral conductor in increasing the intensity of galvanic currents. The paper started out as an affirmation of Henry’s priority in the discovery of self-induction. He then combined induction proper (using Faraday’s findings and his own) with selfinduction to show how these produce a pattern of repulsions yielding an increased effect in spirals. He specifically linked these “magneto-electrical” results to the principles of static induction developed by Cavendish and Poisson. This explanation was then applied to Savary’s report of changes of polarity when magnetic needles were placed at varying distances from a wire in which a current was being transmitted (""Mémoire sur l’aimantation,"" in Annales de chimie et de physique, 34 [1827],. That is, currents appeared periodically in the air surrounding a current-bearing straight wire as a result of the actions of induction and self-induction."" (DSB).Wheeler Gift: 2724-2725a.‎

Référence libraire : 47418

‎"HENRY, WILLIAM. - A CRUCIAL STEP TOWARDS THE ATOMIC THEORY - HENRY'S LAW.‎

‎Experiments on the Quantity of Gases absorbed by Water, at different Temperatures, and under different Pressures. Read December 23, 1802. (and) Appendix to Mr. William henry's Paper, on the Quality of Gases absorbed by Water, at different Temperature...‎

‎London, W. Bulmer and Co., 1803. 4to. No wrappers as extracted from ""Philosophical Transactions"" 1803 - Part I. Pp.29-42 and 1 engraved plate and Appendix: pp. 274-276. With titlepage to the volume Part I. Some browning to lower part of titlepage. Light foxing to the plate.‎

‎First appearance of this highly importent paper in which Henry announced his discovery of the law, which later was termed ""Henry's Law"". The law states that when a gas is absorbed in a liquid the weight of the gas dissolved is directly proportional to the pressure of the gas over the liquid. This discovery contributed directly to the atomic theory of Dalton.(Parkinson: Breakthroughs: 1803 C) ""Dalton's own experiments on the solution of gases and the stimulus afforded by Henry's work have been seen as crucial in the development of the atomic theory.""(DSB VI p. 285).A paper by Humphrey Davy: ""An Accont of some Experiemnts and Observations on the constituent Parts of certain astringent Vegetables"" and on their Operating in Tanning. Read February 24, 1803"", comes with. In the same volume Pp. 233-273.‎

Référence libraire : 45163

‎"HERAPATH, JOHN - THE KINETIC THEORY OF GASES.‎

‎On the Physical Properties of Gases. (To Dr. Thomsen) (+) A Mathematical Inquiry into the Causes, Laws, and principal Phaenomena of heat, Gases, Gravitation, &c. (3 Parts).‎

‎London, Baldwin, Cradock, and Joy, 1816 a. 1821. Bound in 2 uniform contemp. moiré boards. Light wear along edges and a fes smaller scratches. In: ""Annals of Philosophy"" or, Magazine of Chemistry, Mineralogy, Mechanics, Natural History... By Thomas Thomson."", Vol. VIII and New series Vol. I. VIII,479 pp. a. 9 engraved plates, VIII,479 pp. a. 7 engraved plates. (Entire volumes offered). Herapath's papers: pp. 56-60 (1816) a. pp. 273-293, 340-351 a. 401-416.‎

‎First printing of these contoversial papers where Herapath revived the kinetic theory of gases. His theory was more or less neglected by the scientific community at his time. The kinetic theory remained dormant and forgotten after Euler's and Bernouilli's work ""until 1816, when Herapath proposed a theory which is essential Bernoulli's. Unfortunately he chose to define temperature as being proportional to the momentum rather than the kinetic energy of molecules. Herapath was the first to show, more or less, that kinetic theory can provide simple explanations for the changes of state, diffusion, and the propagation of sound.""(Trousdell ""Essayas in the History of Mechanics"", pp. 283 ff.).Euler, Bernoulli, Herapath and Waterston may be considered the principal scientists who prior to 1850 attempted a more or less complete mathematical treatment of gases, based on a set of molecular postulates. (Jamie Wisniak).""Having published a preliminary notice of his theory in the Annals of Philosophy in 1816, Herapath submitted a detailed account to the Royal Society in 1820. Davy, who was elected to the presidency of the Society in November of that year, was primarily responsible for the fate of the paper. Although Davy was already known as an advocate of the qualitative idea that heat is molecular motion, he found Herapath’s quantitative development too speculative and complicated"" he rejected the hypothesis of an absolute temperature implying an ""absolute zero"" of cold. Having been told that his paper would not be accepted for publication in the Philosophical Transactions, Herapath withdrew it and published it instead in the Annals of Philosophy in 1821. Five years later he launched an attack on Davy in the Times of London, accusing him of circulating unfounded criticisms of his experimental work, which prevented its publication. Although Davy ignored a series of letters and challenges published in the Times, Herapath later claimed Davy’s resignation from the presidency of the Royal Society (1827) as a victory for himself.""(DSB).‎

Référence libraire : 46878

‎"HERMITE, CHARLES. - SOLVING THE QUINTIC EQUATION.‎

‎Sur la résolution de l’équation du cinquième degré. (On the Solution of the Equation of the Fifth Degree).‎

‎(Paris, Mallet-Bachelier), 1858. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 46, No 11. Pp. (503-) 546 (entire issue offered). Hermite's paper: pp. 508-515.‎

‎First apperance of Hermite's famous paper in which he, by the application of elliptic functions, provided the first solution to the general equation of the fifth degree, the quintic equation.Hermite was a major figure in the development of the theory of algebraic forms, the arithmetical theory of quadratic forms, and the theories of elliptic and Abelian functions. He first studied the representation of integers in what are now called Hermitian forms. His famous solution of the general quintic equation appeared in Sur la résolution de l’équation du cinquième degré (1858"" ""On the Solution of the Equation of the Fifth Degree""). (Encyclopedia Britannica).Parkinson ""Breakthroughs"" 1858 M.‎

Référence libraire : 47568

‎"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

‎"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 : 42938

‎"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 : 42389

‎"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. (+)Astron...‎

‎(London, W. Bulmer and Co., 1811 a.1814). 4to. No wrappers as extracted from ""Philosophical Transactions"" Year 1811-Part II. 269-336 and 2 engraved plates showing the shapes of 42 nebulae and star-clusters. And 1814 - Part I. Pp. 248-84 a. 1 engraved plate. Both fine and clean.‎

‎First appearance of two 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 (the papers offered) 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).""Illustrated with many examples at every stage, these papers (1811 a. 1814) showed brilliantly how dynamic changes can be inferred from virtually static evidence"" and Herschel concluded by characterizing the Milky Way in its present stage of dissolution as ""this mysterious chronometer"". (DSB VI, p. 333). A paper by Henry Kater attached: ""Further Experiments on the Light of the Cassegrainian telescope compared with that of the Georgian"". 1814. Pp. 231-247.‎

Référence libraire : 42810

‎"HERTZ, H. (HEINRICH RUDOLF). - A NEW INTERPRETATION OF THE ETHER.‎

‎Ueber die Grundgleichungen der Electrodynamik für bewegte Körper.‎

‎Leipzig, Johann Ambrosius Barth, 1880. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 41, 11. Heft. Pp. 369-640 (entire issue offered, Heft 11). Hertz's paper: pp. 369-399. cLEAN AND FINE.‎

‎First edition of this importent paper in which Hertz went beyond Maxwell and hereby took the first step on the way to RELATIVITY THEORY.In his second theoretical paper (the paper offered), Hertz applied Maxwell’s equations to moving, deformable bodies. Maxwell had not treated this problem systematically in the Treatise although, unknown to Hertz, he had done so elsewhere. Hertz recognized that to develop an electrodynamics of moving bodies, it was first necessary to specify whether or not the ether moves with bodies. For his part he would assume that the ether is mechanically dragged by moving bodies. The first ground for this assumption was that within the restricted domain of electromagnetic phenomena there was nothing incompatible with the idea of a dragged ether. The second ground was that its denial entailed the complication that two sets of electric and magnetic vectors had to be assigned to each point of space, one for the ether and one for the independently moving body. He recognized at the same time that a dragged ether was an unsure foundation for electrodynamics....""(DSB).Schilpp ""Einstein"" pp. 31 ff. - Whittaker ""A History of the Theories of Aether and Electricity"", pp. 328 ff.‎

Référence libraire : 44844

‎"HERTZ, H. (HEINRICH RUDOLF). - THE BIRTH OF RADIO-COMMUNICATION, TELEVISON AND RADAR‎

‎Ueber sehr schnelle electrische Schwingungen. (+) Nachtrag zu der Abhandlung über sehr Schnelle electrische Schwingungen.‎

‎Leipzig, Johann Ambrosius Barth, 1887. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von G. Wiedemann."", Neue Folge Bd. 31, 7. Heft. With the titlepage to vol. 31. Pp. 337-544 a. 2 folded plates, (entire issue offered ""Heft"" 7). Hertz's paper: pp. 421-448 A. PP. 543-544. A Stamp on titlepage and verso of. Clean and fine.‎

‎First edition of Hertz's seminal paper on electromagnetic waves in which he empirically demonstrates Maxwell's equations. This discovery and its demonstration led directly to the invention radio of communication, television and Radar. The paper is the ""ANNOUNCEMENT OF THE DISCOVERY OF THE PRODUCTION BY ELECTRICAL DISCHARGE OF WAVES WHICH HAVE THE PROPERTY OF VERY LONG WAVES""(H.M. Evans).Hertz demonstrates what Maxwell had predicted that electromagnetic waves radiated in space with the speed of light. Hertz determined these waves to be of greater length than light and that they could be reflected.""Experimental proof by Hertz of the Faraday-Maxwell hypothesis that electrical waves can be projected through space was begun in 1887, eight years after Maxwell's death. The two main requirements were (a) a method of producing the waves, supposing that they existed, and (b) a method of detecting them once they were produced."" (PMM, 377.). In the present paper Hertz ""describes the apparatus that he had devised for the detection and measurement of electromagnetic waves, the key to his later success. To prove that electromagnetic waves can be projected through space it was necessary to devise a means of both producing the waves and, more difficult at the time, of detecting them once produced."" (Norman Library, No. 1123).""Hertz's researches on electrical waves vindicated the Helmholtz ideal of the physicist as one whose competences embraced both experiment and mathematics. Hertz entered physics at the right time for one of his abilities to make a critical contribution"" because the outstanding problem of physics was the disorderly condition of electrodynamics, what was needed was someone with the theoretical power to analyze the competing theories and with the experimental judgment to produce the evidence that would persuade the physical community that a decision between the theories had been reached."" (DSB, VI, 348b.)""In the early 1890's the young inventor Guglielmo Marconi read of Hertz's electric wave experiments in an Italian electrical journal and began considering the Possibility of communication by wireless waves. Hertz's work initiated a technological development as momentous as it physical counterpart."" (DSB, VI, 349a.).‎

Référence libraire : 44842

‎"HESS, (GERMAIN HENRY). - ""THE LAW OF HEAT FORMATION""‎

‎Recherches sur les quantités de chaleur dégagées dans les combinaisons chimiques. (Lettre à M. Arago).‎

‎Paris, Fortin, Masson et Cie, 1840. 8vo. Contemp. hcalf. Spine gilt and with gilt lettering. Some scratches to spine. In: ""Annales de Chimie et de Physique"", 2e series, tome 74. 448 pp., 1 folded plate. Hess' paper: pp. 325-335. Stamps on verso of titlepage. Internally clean.‎

‎First edition of Hess's most famous paper, in which he outlined his law on thermochemistry. His principle, a progenitor for the first law of thermodynamics, came to be called Hess's law. It states that in a series of chemical reactions, the total energy gained or lost depends only on the initial and final states, regardless of the number or path of the steps. This is also known as the law of constant heat summation. Hess described here his newly discovered law, known as Hess's Law, in form of a letter to Arago. (The letter was also published in Comptes Rendus in a slightly modified form). ""Here thermochemistry received its first importent advance at the hands of Germain Hess, who showed that the heat evolved in a reaction is the same regardless of whether the reaction is carried out directly or in a number of steps..."" (Leicester & Klickstein ""A Source Book in Chemistry"", pp. 329-332). This paper preceded the larger papers also published in ""Annales de Chimie et de Physique"" and the original (and larger) paper in ""Bulletin scientifique, Academie impériale des Sciences (St. Petersbourg, 1840)"". The volume contains also papers by Laurent, Biot, Mulder, Melloni etc.Parkinson ""Breakthroughs"" 1840 C.‎

Référence libraire : 48910

‎"HITTORF, JOHANN WILHELM. - INTRODUCING THE NOTION OF ""TRANSPORT NUMBERS"" OF IONS.‎

‎Ueber die Wanderungen der Ionen während der Elektrolyse. Erste-Zweite und Dritte Mittheilung (+) Rechtfertigung seiner Mittheilungen ""Ueber Wanderungen der Ionen"". Elektrolyse einer lösung zweier Salze. (4 papers).‎

‎Leipzig, Johann Ambrosius Barth, 1853, 1856, 1858, 1859. Without wrappers in ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Dritte und Vierte Reihe, Bd. 89 No. 6 u. 7, Bd. 98 No 5, Bd. 103 No 1, Bd. 106 No. 3. The 5 entire issues offered. Hittorf's papers pp. 177-211 (Bd. 89), pp. 1-33 (Bd.98), pp. 1-56 (Bd.103), pp.337-411 a. 513-586 (Bd. 106). In all 7 engraved plates. All issues fine and clean.‎

‎First printing of all 4 fundamental papers on electrochemistry, where Hittorf states his concepts of ionic migration and transport numbers, concepts that should be the foundation stones of the later evolved theory of ionization, culminating in Svante Arrhenius's famous discovery of electrolytic dissociation.""After Faraday's experimental investigations in 1834, it was accepted that the electricity passing through an electrolytic cell was carried by the movement of charged ions produced from the decomposition of the compounds making up the solution. Daniell had extended these ideas in 1839 and showed that salts were compounds not of acid anhydrides and metallic oxides as had been thought, but of metallic cations and elemental or compound acid anions. Believing that the conductivity of solutions was due to these ions, he began a study of their transference. In 1853 Hittorf took up the problem. He extended the ideas of Daneill by reasoning inthe following manner: Cations and anions exist in solutions and migrate under the influence of current through the solution. The migration of the cation toward the cathode and away from the anode, and the deposition of the anode on the positive electrode, together result in a decrease of teh salt in the neighborhood of the anode. A similar analysis shows that there is also a decrease in the concemtration of the salt in the neighborhood of the cathode. If the motion of the two dissimilar ions were the same, the decrease in the concentration of the salt would be the same at the two electrodes.....Hwe concluded that the speeds of migration...were different and he characterized this fact by defining ""transport numbers"", which specified the portion of the transport of electricity carried by each ion. (DSB VI, p. 439). - Leicester & Klickstein ""A Source Book of Chemistry"", p. 400-406.In the 2 issues of 1853 are contained 2 papers by Helmholtz of fundamental cjharacter, both in physiology and on the theory on the conservation of energy. HERMAN HELMHOLTZ: ""Ueber einige Gesetze der Vertheilung elektrischer Ströme in körperlichen Leitern mit Anwendung auf die thierisch-elektrischen Versuche (+) Ueber einige Gesetze....(Schluss). 2 papers. 1853. (Bd. 89 No.6 a. 7). Pp. 211-233 a. pp. 353-377.""In this work (the papers offered) Helmholtz for the first time enters the field of mathematical physics and physiology, with the full equipment of the higher mathematical analysis, of which he was the only master in its application to the latter science.....This very interesting and fundamental work on the distribution of electrical currents in material conductors is purely mathematical in character, owing to Helmholtz's method of proving the theorems, which are intelligible enough from the physical point of view, It is essentially connected with the treatise on the CONSERVATION OF ENERGY, since helmholtz merely substitutes for the expression 'free tension' there employed, the identical concept of Gauss's potentia, or Green's potential function.""(Koenigsberger in ""Hermann von helmholtz"", p. 99-103.).‎

Référence libraire : 43082

‎"HOFFMANN, FRIEDRICH. - ""THE GEOLOGY OF ROME""‎

‎Ueber die Beschaffenheit des römischen Bodens, nebst einigen allgemeinen Betrachtungen über den geognostiscehn Charakter Italiens.‎

‎(Leipzig, Johann Ambrosius Barth, 1829). Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg.von Poggendorff"", Bd. 16, Fünftes Stück. Halftitle to vol. 16. Pp. 1-192 a. 2 engraved plates. (Entire issue offered). Hoffmann's paper: pp. 1-40 and 1 folded engraved handcoloured plate ""Geognostische Skizze von Rom"". Clean and fine.‎

‎Importent early investigations into the geological structures of the underground of Rome.‎

Référence libraire : 43602

‎"HOMBERG, (WILHELM, GUILLAUME). - THE FIRST DETERMINATION OF EQUIVALENT WEIGHTS IN CHEMISTRY.‎

‎Observation sur la quantite exacte des sels volatiles Acides contenus dans les differens esprites acides. (+) Observations sur la quantité D'Acides absorbe's par les Alcalis terreux. (2 Memoirs).‎

‎(Paris, Jean Boudot, 1702 a. 1703). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences"". Année 1699 a. Année 1700. Pp. 44-51 and 1 textillustration. (depicting his + pp. 64-71.‎

‎First appearance of the 2 papers which represents Homberg's main works. In these papers he shows for the first time how to determine equal weights of substances, that all acids differ only in water content, and that dry acids combines in equal proportions with alkali. In the first paper he also gives the Pygnometer Bottle its modern form.""Probably his most importent work was on the strenght of acids and the quantity required to neutralize a given quantity of alkali (two papers published in 1699 and 1700) - the papers offered - Homberg recognized that different alkalis neutralized the same acid in different proportion but believed that the relative strenghts of two acids could be determined by using the same alkali in each case. he treated the the question of neutralization (or dissolvability, as he called it) in quite quantitative fashion, showing that if an alkaline salt were treated with an acid, the gain of weight ofthe salt wasan indication of the amount of acid absorbed....Homberg nevertheless understood the fundamentals of the process and thereby laid the foundation for an understanding the nature of salts.""(DSB VI, p. 478).Parkinson ""Breakthroughs"" 1700 C.‎

Référence libraire : 44405

‎"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

‎"HUGGINS, WILLIAM and W.A. MILLER. - HEAVEN AND EARTH BUILT OF THE SAME ELEMENTS.‎

‎On the Spectra of some of the Fixed Stars. Received April 28, - Read May 26, 1864. (+ Supplement:) On the Spectra of some of the Nebulae. A Supplement to the Paper ""On the Spectra of some of the Fixed Stars."" Received September 8, 1864, and printed i...‎

‎(London, Taylor and Francis, 1864). 4to. No wrappers as extracted from ""Philosophical Transactions"", Vol. 154 - Part II, pp. 413-435 a. pp. 437-444 and 2 lithographed plates.(1 plate showing the spectroscope which could be attached to his eight-innch telescope invented by Huggin's and Miller, the start of stellar spectroscopi, the other plate showing the obtained spectra of the nebulæ Aldebaran and Orionis).‎

‎First printing of a historical paper in spectroscopy and cosmology in which the authors shows, by analysing the spectrae of nebulae, of stars, of planets, of comets, and of the sun, that they are all built of the same elements as the earth. Thus was ""laid to rest the twenty-one-century notion of Aristotle's that the heavens were composed of a unique substance not found on the earth.""(Asimov). They also shows that there is a considerable diversity of chemical composition among the stars.In this paper Huggins also describes his discovery, by spectroscopy, that a number of nebulae are luminous gas clouds.""William Huggins (1824-1910), English astronomer, a pioneer in spectroscopy and photography. He examined spectroscopically the chemical constitution of stars and comets, and the gaseous nature of planetary and diffuse nebulae"" he applied the Doppler Principle to the measurement of the radial velocities of stars, and published an atlas of representative stellar spectra"" (Ripley: Source Book in Astronomy).‎

Référence libraire : 42260

‎"HUMBOLDT, ALEXANDER von. - ON THE SNOW-LINE OF THE HIMALAYA.‎

‎Sur la Limite inférieure des neiges perpétuelles dans les montagnes de l'Himâlaya et les régions équatoriales.‎

‎Paris, Crochard, 1820. Uncut in orig. printed wrappers. In ""Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago."", Tome XIV - Mai 1820. The entire issue offered. Htitle a. titlepage to vol. 14. (4),112 pp. Humboldt's paper: pp. 5-56. Clean and fine.‎

‎First appearance of Humboldt's importent investigation of the snow-line in the Himalayas. He found, that the snow-line on the northern side of the Himalaya is much higher than below the equator, and that there is a connection between the lowest line of the permanent snow, the oscillations of the snowl-line and the lowest line of snowfall.The issue also contains the importent chemical paper by PELLETIER & CAVENTOU ""Examen chimique de plusieurs végétaux de la famille des colchicées, et du principe actif qu'ils renferment. (Cévadille (veterum album)"" colchique commun (colchicum autumnale))."", pp. 69-83.‎

Référence libraire : 44059

‎"IBSEN, HENRIK. - [PMM 375 - REVOLUTION IN THE THEATRE].‎

‎Hedda Gabler. Skuespil i fire Akter. + Fru Inger til Østråt. Skuespil i fem Handlinger. Tredje Udgave.‎

‎København, 1891. Indb. i ét samt. hldrbd. m. rygforgyldn. (Anton Larsens Bogbinderi). Ryg lidt skrammet og plettet. Indvendig ren og frisk.‎

‎Originaludgaven af ""Hedda Gabler"". First edition of ""Hedda Gabler"" bound with the third edition of ""Fru Inger"" in one cont. hcalf w. gilt back (Anton Larsens Bogbinderi). Back w. some tears and soiling. Internally very nice and clean. ""Ibsen's influence on the whole course of modern drama may be indicated by the inclusion of his plays in the repetoire of every Anvant-garde theatre of his day - the Théâtre Libre, Paris, 1887, Die Freie Bühne in Berlin, 1887, and The Independant Theatre in London, 1891-"" (Printing and the Mind of Man: 375).‎

Référence libraire : 31388

‎"IRELAND, JOHN - WILLIAM HOGARTH. - FROM THE LIBRARY OF DUDLEY COUTTS MAJORIBANKS.‎

‎Hogarth Illustrated by John Ireland. From the original Picture in the Shakspeare Gallery. 3 Vols.‎

‎(London), J. & J. Boydell, 1791, 1791 a. 1798. Beautifully bound in 3 contemp. straight grained full morocco. On covers 4-double gilt line fillets with 4 large gilt floral cornerpieces. All compartments richly gilt with lines and small floral-like stamps. Titles with gilt lettering. Inside gilt borders. Edges of covers gilt. Edges gilt. All volumes with the printed paperlabel of the bookbinder ""Bound by C. Smith, 108, Strand"". All volumes with the gilt exlibris in leather of Dudley Coutts Majoribanks (1st Baron Tweedmouth). 2 engraved frontispieces. 3 engraved title-pages (vol. 3 with both engraved and printed title-page). (6),CXXII,311"(2),(311-) 607,(4)XXIII,380,(1, errata) pp. and with 136 engravings on plates and engraved vignettes. With the engraved dedication-plate. A clean fine copy, printed on good paper with occassionally a bit of offsettings from the plates. Bindings in near mint condition.‎

‎First edition in an exquisite copy.‎

Référence libraire : 54524

‎"IVORY, JAMES. - THE INTRODUCTION OF IVORY'S THEOREM.‎

‎On the Attraction of homogenous Ellipsoides. Read June 15, 1809.‎

‎(London, W. Bulmer and Co., 1809). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1809 - Part II. Pp. 345-372. Clean and fine.‎

‎First printing this importent paper in which Ivory introduces his well-known theorem which bears his name. It states that the attraction of an ellipsoid upon a point exterior to it is dependent upon the attraction of another ellipsoid upon a point interior to it.""In 1809 J. Ivory proved the three-dimensional version of this theorem by straightforward calculation and by using an appropriate parametrization. This theorem holds in the n-dimensional Euclidean space (n > 1). It has been shown that it is also true in the pseudo-Euclidean plane (Minkowski)"" (H. Stachel).""Ivory's scientific reputation, for which he was awarded many honours during his lifetime, including knighthood of the Order of the Guelphs, Civil Division (1831), was founded on the ability to understand and comment the work of the French analysts rather than any great originality of his own...Ivory's work, conducted with great industry over a long period, helped to foster in England a new interest in the application of analysis to physical problems."" (DSB VII. p. 37).‎

Référence libraire : 42620

‎"Jack the Sniper", "Jack the Sniper"‎

‎"A Peep Over the Barleycorn" in the Firing Line with the P.W.O. 2nd West Yorkshire Regiment Through the Relief of Ladysmith‎

‎new. unknown‎

Référence libraire : 11485530-n ISBN : 1845748980 9781845748982

‎"Jack the Sniper"", ""Jack the Sniper""‎

‎"A Peep Over the Barleycorn"" in the Firing Line with the P.W.O. 2nd West Yorkshire Regiment Through the Relief of Ladysmith‎

‎paperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback‎

Référence libraire : 1845748980.G ISBN : 1845748980 9781845748982

‎"JACOBI, C.G.J. - KINETICS OF THE TOP.‎

‎Sur la rotation d'un corps.‎

‎(Berlin, Georg Reimer, 1850). 4to. Later marbled wrappers. In ""Journal für die reine und angewandte Mathematik, 39. Band, 24 Heft. Jacobi's paper takes up the whole issue . pp. 293-350.‎

‎First printing of main paper in Rigic Body Dynamics, where Jacobi studied the motion of a top and derived the analytic solution for the motion of a free body and defined the so-called ""Jacobi analytic functions"". The problem was first treated by Leonhard Euler in 1758 in the case where the fixed point is the centre of gravity of the top, but it was Jacobi who first solved the problem completely, making use of elliptic functions which he himself had introduced.‎

Référence libraire : 46889

‎"JANSSEN, PIERRE JULES CÉSAR. - THE PHOTOGRAPHIC REVOLVER AND THE ""FIRST FILM"".‎

‎Passage de Vénus"" Methode pour obtenir photographiquement l'instant des contacts, avec les circonstances physiques qu'ils présentent. (+) Présentation de quelques spécimens de photographies solaires obtenues avec un appareil construit pour la mis...‎

‎Paris: Gauthier-Villars, 1873, 1874, 1874 a.1882. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences"", Vol. 76, No 11, Vol. 78, No 25, Vol. 79, No 1, Vol. 94, No 14. (3 entire issues offered). Pp. (677-) 732, pp. (1721-) 1780, pp. (5-) 72 and pp. (901-) 996. Janssen's papers: pp. 677-679, pp. 1730-31, pp. 6-7 and pp. 909-911. (The main paper having the title-page to the volume (vol. 79), stamp to title-page).‎

‎First printings of this series of epoch-making papers in which Janssen introduced the ""PHOTOGRAPHIC REVOLVER"" and its first successfull use leading to the ""First Film"" and hereby ""realized one of the operations necessary for cinematography""(DSB).In the first papers he conceived the idea of a device of historical interest, the photographic revolver, the technique of short exposures, which is announced here. The third paper is the epoch-making paper in which he specifically describes the ""revolver"" and its results, the ""first film"". The fourth paper is his responce to Marey's famous expriments with the ""revolver"" recording the flight of birds.""A long barreled canon-like automatic camera was invented in 1874 by an outstanding pioneer of modern astronomical photography, Jules Janssen. Janssen used the revolving plate technique and called his camera a 'pistol'. Janssen's method used the forerunner of a number of 'gun' cameras with a slowly revolving plate and shutter operated by clockwork. The photos were taken every 70 seconds along the margin of the negative and he used his pistol to record a 48 image sequence of the transit of Venus across the sun at an exposure rate of 1.5 seconds.""""In planning for the observation of the transit of Venus, which he was to observe in Japan on 9 Deembe 1874, Janssen decided to substitute for visual observation at the time of transit a series of photographs taken in rapid succession, which would permit him to measure the successive positions of the planet in relation to the solar limb. He ordered the construcion of an apparatus consisting of three circular disks with the same axis: the first, pierced by twelve slits, served as the shutter"the second contained a window" the photographic plate, which was circular, was fixed to the third. The first two disks turned with a synchronized movement, the shutter disk continuously and the other irregularly in the intervals of time in which the window was not swept by a slit. A series of separate images laid out on a circle was thus obtained on the plate. In a general manner the apparatus provided an analysis of a motion on the basis of the sequence of its elemental aspects. Here Janssen realized one of the operations necessary for cinematography, which was invented twenty years later, and which required, besides analysis, the synthesis of images."" (DSB).‎

Référence libraire : 49205