‎Physique‎

‎"CLAUSIUS, R. (RUDOLF) - KINETIC THEORY OF GASES.‎

‎Ueber die Wärmeleitung gasförmiger Körper.‎

‎Leipzig, Johann Ambrosius Barth, 1862. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", 115. Bd., 1. issue (""Heft"" No 1, 1862). Titlepage to vol. 115. Pp. 1-176 a. 1 folded engraved plate. (The entire issue offereed (""Heft"" 1)). Clausius' paper: pp. 1-56. Some brownspots to right marginon some leaves.‎

‎First printing of this importent paper, the seciond of C's papers in the working out of the Kinetic Theory of Gases. In the paper he states that he found an error in Maxwell's theory of gases, an error Maxwell was to admit as far more serious. ""In his initial approach to the conduction of heat in gases, Maxwell drew a brilliant analogy between diffusion (a transfer of mass) and conduction (a transfer of kinetic energy), thereby making it possible to use the form of his diffusion equation to represent conduction, simply replacing the mass of a molecule with its kinetic energy. Clausius critized this adoption of the diffusion equation, because, given the assumptions, mass transfer would accompany the heat conduction and the process would not be one of energy transfer alone. He then offered a revised theory of conduction. ""(DSB III, p. 308).""Clausius was one of the founders of the kinetic theory of gases and of the science of thermodynamics. He and Lord Kelvin at about the same time and independently announced the Second Law of thermodynamics. Clausius particularly developed the theory of thermodynamics by applying it to the study of gases and vapors.""(Magie in ""A Source Book in Physics"", p. 228).‎

Référence libraire : 43530

‎"CLAUSIUS, R. (RUDOLF) - ANNOUNCING THE ""TEOREM OF EQUIVALENCE""‎

‎Ueber die Anwendung des Satzes von der Aequivalenz der Verwandlungen auf die innere Arbeit. (Vorgelen in der Züricher naturforschenden Gesellschaft am 27. Januar 1862).‎

‎Leipzig, Johann Ambrosius Barth, 1862. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Bd. 116, No. 5. Pp. 1-192 a. 1 folded lithographed plate. (Entire issue offered). Clausius' paper: pp. 73-112. With titlepage to volume 116.‎

‎First appearance of the paper in which Clausius makes importent contributions to the generalization and understanding of the Second Law of Thermodynamics by introducing the concept of disgregation and proving the equivalence of the transformation of heat.""Clausius began that search for understanding in 1862 by introducing the concept of disgregation, a concept that, he said, was based on an idea he had long held: that the force of heat for performing mechanical work (both internal and external together) was proportional to the absolute temperature.13 Clausius had never stated this idea explicitly before, although he had argued in 1853, by adopting an analogy between a reversible steam engine and a thermocouple, that the potential difference at a thermocouple junction should be proportional to the absolute temperature. In any event, he now wished to assert that the work which can be done by heat in any change of the arrangement of a body is proportional to the absolute temperature multiplied by a function of molecular arrangement, the disgregation Z. Given this assumption and his postulate that the heat in a body H was only a function of temperature, he was able (1) to prove his theorem of the equivalence of transformations and (2) to separate the equivalence function (entropy) into a temperature-dependent term and a configurational-dependent term...""(DSB).The issue contains other notable papers, Plücker ""Ueber recurrente Ströme und ihre Anwendung zur Darstellung von Gasspectra"", pp. 27-54, Tyndall ""Ueber Strahlung und Absorption der Wärme durch gasförmige Materie"", pp. 1-27.‎

Référence libraire : 45071

‎"CLAUSIUS, R. (RUDOLF) - ASSOCIATION COPY.‎

‎Ueber das Wesen der Wärme, vergleichen mit Licht und Schall. Ein populäret Vortrag gehalten zu Zürich den 12. Februar 1857.‎

‎Zürich, Meyer & Zeller, 1857. Uncut in orig. printed wrappers. Some browning to upper wrapper. S tamp on title-page. 31 pp. Scattered brownspots. From the library of Max v. Laue, having his stamp on top of upper wrapper ""M. Laue"".‎

‎First edition of Clausius' popular account of his dynamical theory of heat (the second law of thermodynamics).‎

Référence libraire : 59924

‎"CLAIRAUT, (ALEXIS CLAUDE de). - THE FIRST DIRECT CONFIRMATION OF THE COPERNICAN THEORY.‎

‎De L'Abberation apparente des Etoiles, causée par le mouvement progressif de la Lumière.‎

‎(Paris, L'Imprimerie Royale, 1740). 4to. Without wrappers. Extracted from ""Mémoires de l'Academie des Sciences. Année 1737"". Pp. 205-227 a. 2 folded engraved plates.‎

‎"CLAIRAUT, ALEXIS-CLAUDE. - CORRECTING NEWTON'S INVERSE SQUARE LAW.‎

‎De L'orbite de la Lune dans le Systeme de M. Newton.‎

‎(Paris, L'Imprimerie Royale, 1746). 4to. Without wrappers. In ""Histoire de L'Academie Royale des Sciences. Année MDCCXLIII. Avec les Memoires de Mathematiques & de Physique, pour la même Année."" Pp. 17-32 and 3 folded engraved plates.‎

‎"CLAUSIUS, R. (RUDOLF) - ASSOCIATION COPY.‎

‎Ueber das Wesen der Wärme, vergleichen mit Licht und Schall. Ein populäret Vortrag gehalten zu Zürich den 12. Februar 1857.‎

‎Zürich, Meyer & Zeller, 1857. Uncut in orig. printed wrappers. Some browning to upper wrapper. S tamp on title-page. 31 pp. Scattered brownspots. From the library of Max v. Laue, having his stamp on top of upper wrapper ""M. Laue"".‎

‎"CLAUSIUS, R. (RUDOLF) - HELMHOLTZ, HERMANN von. - THE ""CENTRAL FORCE"" CONTROVERSY.‎

‎Ueber einige Stellen der Schrift von Helmholtz ""über die Erhaltung der Kraft""" (and Helmholtz:) Erwiederung auf die Bemerkungen von Hrn. Clausius " (and Clausius:) Ueber einige Stellen der Schrift von Helmholtz ""über die Erhaltung der Kraft"", zweite No...‎

‎Leipzig, Johann Ambrosius Barth, 1853-54. No wrappers. ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Vol. 89, No 8 and vol. 91 No 2 a. 4. Pp. 497-628, pp. 161-320 a. pp. 497-628 a. 1 folded plate. (3 entire issues offered). Clausius's papers pp. 568-579 (vol. 89, ""Heft"" 8) a. pp. 601-604 (vol. 91,""Heft"" 4). Helmholtz paper: pp. 241-260 (vol. 91, ""Heft"" 4). With titlepages to both volumes 89 a. 91. All three issues clean and fine.‎

‎"CLAUSIUS, R. (RUDOLF) - THERMODYNAMICS.‎

‎Ueber das mechanische Aequivalent einer elektrischen Entladung und die dabei stattfindende Erwärmung des Leitungsdrahtes.‎

‎Leipzig, Johann Ambrosius Barth, 1852. Without wrappers as issued in ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", 86. Bd., Drittes Stúck (""Heft"" No 7, 1852). Entire issue offered. Pp. 337-500. Clausius' paper: pp. 337-375. Clean and fine.‎

‎"CLAUSIUS, R. (RUDOLF).‎

‎Ueber die Anordnung der Elektricität auf einer einzelnen sehr dünnen Platte und auf den beiden Belegungen einer Franklin'schen Tafel.‎

‎Leipzig, Johann Ambrosius Barth, 1852. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Bd. 86, No 6. Pp. 161-336 a. 1 plate. Clausius' paper: pp. 161-205. With titlepage to volume 86.‎

‎"CLAUSIUS, R. (RUDOLF). - COINING THE WORD ""ENTROPY""‎

‎Ueber verschiedene für die Anwendung bequeme Formen der Hauptgleichungen der mechanischen Wärmetheorie. (Vorgetragen in der naturfor. Gesellsch. zu Zürich den 24. April 1865).‎

‎(Leipzig, Johann Ambrosius Barth, 1865). Without wrappers in ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Fünfte Reihe Bd.5, Stück 3 (= Poggendorff Bd. 125, No. 9). Pp. 353-512 a. 2 plates (the entire ""Heft"" (Stück) 3 offered). Clausius's paper: pp. 353-400. Clean and fine.‎

‎"CLAUSIUS, R. (RUDOLF). - RADIANT HEAT AND THE SECOND THERMODYNAMIC LAW.‎

‎Ueber die Concentration von Wärme- und Lichtstrahlen und die gränzen ihrer Wirkung. (Vorgetragen in der Züricher naturforschenden Gesellschaft am 22. Juni 1863).‎

‎Leipzig, Johann Ambrosius Barth, 1864. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Bd. 121, No 1. Pp. 1-192 a. 2 plates. (Entire issue offered). Clausius' paper: pp. 1-44. With titlepage to volume 121.‎

‎"CLAUSIUS, R. (RUDOLF). - THE HEATH-DEATH OF THE UNIVERSE - ESTABLISHING THE SECOND LAW OF THERMODYNAMICS.‎

‎Ueber eine veränderte Form des zweiten Hauptgesatzes der mechanichen Wärmetheorie.‎

‎Leipzig, Johann Ambrosius Barth, 1854. No wrappers as extracted from: ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Vierte Reihe Bd. 3, (= Poggendorff Bd. 93, No. 12). Pp. 481-506. Clean and fine.‎

‎"CLAUSIUS, R. (RUDOLF). - THE HEATH-DEATH OF THE UNIVERSE - ESTABLISHING THE SECOND LAW OF THERMODYNAMICS.‎

‎Ueber eine veränderte Form des zweiten Hauptgesatzes der mechanichen Wärmetheorie.‎

‎Leipzig, Johann Ambrosius Barth, 1854. Contemp. marbled boards. In: ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Vierte Reihe Bd. 3, (= Poggendorff Bd. 93,). Entire volume offered. Two stamps to titlepage. X,632 pp. and 4 folded engraved plates. Clausius's paper: pp. 481-506. Internally clean and fine.‎

‎"CLAUSIUS, RUDOLF. - INTRODUCING THE SECOND LAW OF THERMODYNAMICS.‎

‎Ueber die bewegende Kraft der Wärme und die Gesetze, welche sich daraus für die Wärmelehre selbst ableiten lassen.‎

‎Leipzig, Johann Ambrosius Barth, 1850. Contemp. marbled boards. Gilt spine, titlelabel with gilt lettering. Light wear to spineends, corners and edges. Stamps on title-page (Gusstahlfabrik Fried. Krupp). In ""Annalen der Physik und Chemie"", Dritte Reihe, 19. Band (79. Band der ganzen Reihe). IX,(1),580 pp. and 3 folded engraved plates. (Entire volume offered). Endpapers and the first and last few leaves with brownspots. Clausius's paper: pp. 368-397 a. pp. 500-524. Internally clean.‎

‎"COMPTON, ARTHUR HOLLY.‎

‎A Quantum Theory of the scattering of X-Rays by Light Elements. - [THE DISCOVERY OF THE COMPTON-EFFECT, NOBEL PRIZE PAPER]‎

‎Lancaster, American Physical Society, 1923. Royal8vo. In the original printed wrappers. In: Physical Review, Second Series, Vol. 25, No. 5, May 1923. With black cloth back-strip. Front wrapper missing top right corner and front wrapper washed/polished. Internally fine and clean. [Compton's paper:] pp. 483-502. [Entire issue:] Pp: 483-584.‎

‎First printing of this milestone paper in quantum physics in which Compton verifies Planck's quantum postulate and found that some of the X-rays had, in scattering, lenghtened their wavelenght. This phenomena was called the ""Compton Effect"" in his honour. For this discovery Compton received the Nobel prize in physics in 1927.""Compton was able to account for this (lenghtening of wavelenght) by presuming that a photon of light struch an electron, which recoiled, subtracting some energy from the photon and therefore increasing its wavelenght. This made it seem that a photon acted as a particle: thus after more than a century, the particulate natuer of light, as evolved by Newton, was revived... What itamounted to was that Compton brought to fruition the view that electromagnetic radiation had both a wave aspect and a particle aspect, and that the aspect which was most evident depended on how the radiation was tested. De Broglie was, at the same time, showing that this held true also for ordinary particles, such as electrons."" (Asimov)Parkinson ""Breakthroughs"", 1923 P. - Sigmund Brandt ""The Harvest of as Century"", Episode 31.‎

Référence libraire : 57202

‎"COLDING, LUDVIG AUGUST.‎

‎Naturvidenskabelige Betragtninger over Slaegtskabet mellem det aandelige Livs Virksomheder og de almindelige Naturkraefter. [i.e. ""Scientific Reflections on the Relationship between the Intellectual Life's Activity and the General Forces of Nature""]. - [PRESENTATION-COPY]‎

‎Copenhagen, 1856. 8vo. Bound with the original blank glitted front wrapper in contemporary boards with cloth back-strip. Stamp to title-page. A bit of overall wear and minor brown-spotting. 15 pp.‎

‎Rare first edition, presentation-copy, of colding's highly interesting first work on the philosophical and religious aspects of his discovery of the principle of conservation of energy, which is of importance for his discussions of joule's experiments and for his priority dispute with mayer, independently of and simultaneusly with both of whom he discovered the principle of conservation of energy. Presentation inscription from the author (""Hr. Generalmajor v. Schlegel / ærbødigt fra A. Colding"") [i. e. ""Mr. General Major v. Schlegel / Yours faithfully A. Colding""] to verso of the original front wrapper.Ludvig August Colding (1815 - 1888) was a famous Danish engineer and physicist. He was originally educated as a carpenter but graduated as mechanical engineer in 1841. In 1845 he became water-inspector in Copenhagen and in 1847 he was also given the responsibility of the gas- and waterworks. Together with the famous chemist Julius Thomsen, he proved that the cholera spread throughout Copenhagen through the drinking water (1853) - a most significant discovery. After this he was responsible for replacing much of the sewer-system of Copenhagen. In 1857 he became state engineer. During this period he overhauled the desperately inadequate water and sanitation system. He articulated the principle of conservation of energy contemporaneously with, and independently of, James Prescott Joule and Julius Robert von Mayer though his contribution was largely overlooked and neglected.""The Philosophical and religious side of Colding's thesis was first elaborated in his cumbersome treatise of 1856, ""Naturvidenskabelige Betragtninger over Slaegtskabet mellem det aandelige Livs Virksomheder og de almindelige Naturkraefter"" (""Scientific Reflections on the Relationship between the Intellectual Life's Activity and the General Forces of Nature""), his last paper on this topic to the Danish Society of Sciences"" it was published on the occasion of his being elected member of the Society. It stressed his own philosophical conviction and dwelt at length on the relationship between the material and the spiritual in nature, clearly echoing the intellectual and aesthetic influence of Oersted and in a tone reminiscent of Kant and Schelling. This paper is also of interest for Colding's discussions of Joule's experiments, with which he was acquainted by then, and for his passionate priority dispute with Mayer."" (Dictionary of Scientific Biography, 15 & 16, s. 86)‎

Référence libraire : 42140

‎"COULOMB, (CHARLES AUGUSTIN) - THE PRIZE-WINNING PAPER ON MAGNETIC COMPASSES INTRODUCING THE TORSION BALANCE‎

‎Recherches sur la meilleure Manière de fabriquer les Aiguilles Aimantées, de les suspendre, de s'assurer quelles sont dans le véritable Méridian magnétique: enfin de rendre raison de leurs Variations diurnes régulières: Pièce qui a partae le Prix p... - [THE PRIZE-WINNING PAPER ON MAGNETIC COMPASSES INTRODUCING THE TORSION BALANCE]‎

‎Paris, Moutard, Panckoucke, 1780. 4to. Extract from ""Mémoires fe Mathematique et de Physique, Présentés à l'Academie des Sciences par divers Savans"", Tome IX. With titlepage to vol. IX. Pp. (2), (167-) 264 and 4 folded engraved plates. The memoir has also its own titlepage. Fine and clean. Wide-margined.‎

‎First printing of this monumental memoir (the invention of the TORSION BALANCE) dealing with the best way to construct a magnetic compass. The paper contains the design of a torsion suspension declination compass and the demonstration that the forces of torsion is proportional to the angle of twist. Coulomb received the prize awarded by the Academy for this paper drafted by the Academy in 1777 (he shared the prize with Van Swinden). - ""The importance of this memoir for Coulomb's career is that it CONTAINED ELEMENTS OF ALL HIS MAJOR PHYSICAL STUDIES: the quantitative study of magnetism, torsion and the torsion balance, friction and fluid resistance, and the germ of his theories of elasticity and magnetism.""(DSB).""Coulomb’s first writings on torsion were presented in his Academy prize-winning memoir of 1777, ""Recherches sur la meilleure maniere de fabriquer les aiguilles aimantées.""......... his simple, elegant solution to the problem of torsion in cylinders and his use of the torsion balance in physical applications were important to numerous physicists in succeeding years. In chapter 3, Coulomb developed the theory of torsion in thin silk and hair threads. Here he was the first to show how the torsion suspension could provide physicists with a method of accurately measuring extremely small forces. He showed that within certain angular limits, torsional oscillation consisted of simple harmonic motion. He examined the parameters relating the angle of twist to the length, diameter, and elastic properties of the torsion thread. In the range of simple harmonic oscillation Coulomb demonstrated that the force of torsion was proportional to the angle of twist. He used this principle in measuring small magnetic forces and also called attention to its use in measuring other forces, notably those of fluids in motion. Eventually he was able to measure forces of less than 9 x 10-4 dynes.""""Coulomb’s major memoirs in electricity and magnetism are his 1777 memoir on magnetic compasses, the famous series of seven electricity and magnetism memoirs read at the Academy from 1785 to 1791, and several magnetism memoirs prepared after the French Revolution. In his electrical studies Coulomb determined the quantitative force law, gave the notion of electrical mass, and studied charge leakage and the surface distribution of charge on conducting bodies. In magnetism he determined the quantitative force law, created a theory of magnetism based on molecular polarization, and introduced the idea of demagnetization (basically, that combinations of magnetic poles can ""cancel"" each other).""(DSB).Parkinson ""Breakthroughs"": 1777:P‎

Référence libraire : 44921

‎"COLDING, A(UGUST LUDVIG).‎

‎Undersøgelse over Vanddampene og deres bevægende Kraft i Dampmaskinen [Investigation of the Water Steams and their Moving Power in the Steam Engine]. (Særskilt aftrykt af det Kgl. Danske Videnskabernes Selskabs Skrifter, 5te Række, naturvidenskabelig ... - [THE STEAM ENGINE - PRESENTATION-COPY]‎

‎Kjöbenhavn (Copenhagen), 1852. 4to. Original blue-green blank glitted gift-binding. Wear to spine with loss of paper, otherwise just a bit of wear to extremities. Internally a bit of occasional brownspotting. Stamps to title-page. 35 pp.‎

‎First edition, off-print (separately paginated), presentation-copy, of Colding's major contribution to the development of the steam engine. The hand-written presentation on front free end-paper reads as thus: ""Høivelbaarne/ Hr. General-Major Schlegel C. af D. pp./ med høiagtelse/ fra/ Forfatteren."" [Honoured/ Mr. General v. Schlegel C. of D. pp. (honorary title)/ with high estimation/ from/ the author.].Ludvig August Colding is primarily remembered today for, together with Meyer, Joule, and Helmholtz, having determined the principle of Conservation of Energy. His final major contribution to this discovery consists in the publication of his elaborated experiments which once and for all determined the accuracy of his assumption (that no amount of energy gets lost, since what is apparently lost in energy will be found in other places or in different forms, e.g. heat) (1850). Two years after that seminal publication, he publishes his main contribution to the development of the steam engine, namely his ""Investigation of the Water Steams and their Moving Power in the Steam Engine"" (1850), which is obviously based on his determination of the principle of conservation and alteration of energy.Colding was a famous Danish engineer and physicist. He was originally educated as a carpenter but graduated as mechanical engineer in 1841. In 1845 he became water-inspector in Copenhagen and in 1847 he was also given the responsibility of the gas- and waterworks. Together with the famous chemist Julius Thomsen, he proved that the cholera spread throughout Copenhagen through the drinking water (1853) - a most significant discovery. After this he was responsible replacing much of the sewer-system of Copenhagen. In 1857 he became state engineer. He was also a member of the Academy of Sciences and honorary doctor at the University of Edinburgh.His work on the power of water-stem in the steam engine is considered one of his most significant.‎

Référence libraire : 41484

‎"COLDING, A(UGUST LUDVIG).‎

‎Undersøgelse over Vanddampene og deres bevægende Kraft i Dampmaskinen [Investigation of the Water Steams and their Moving Power in the Steam Engine]. (Særskilt aftrykt af det Kgl. Danske Videnskabernes Selskabs Skrifter, 5te Række, naturvidenskabelig ... - [THE STEAM ENGINE]‎

‎Kjöbenhavn (Copenhagen), 1852. 4to. Original blank wrappers. Uncut and unopened. Printed on vellum-paper. Mint copy. 35 pp.‎

‎First edition, off-print (separately paginated) of Colding's major contribution to the development of the steam engine. Ludvig August Colding is primarily remembered today for, together with Meyer, Joule, and Helmholtz, having determined the principle of Conservation of Energy. His final major contribution to this discovery consists in the publication of his elaborated experiments which once and for all determined the accuracy of his assumption (that no amount of energy gets lost, since what is apparently lost in energy will be found in other places or in different forms, e.g. heat) (1850). Two years after that seminal publication, he publishes his main contribution to the development of the steam engine, namely his ""Investigation of the Water Steams and their Moving Power in the Steam Engine"" (1850), which is obviously based on his determination of the principle of conservation and alteration of energy.Colding was a famous Danish engineer and physicist. He was originally educated as a carpenter but graduated as mechanical engineer in 1841. In 1845 he became water-inspector in Copenhagen and in 1847 he was also given the responsibility of the gas- and waterworks. Together with the famous chemist Julius Thomsen, he proved that the cholera spread throughout Copenhagen through the drinking water (1853) - a most significant discovery. After this he was responsible replacing much of the sewer-system of Copenhagen. In 1857 he became state engineer. He was also a member of the Academy of Sciences and honorary doctor at the University of Edinburgh.His work on the power of water-stem in the steam engine is considered one of his most significant.‎

Référence libraire : 42316

‎"CONDON, EDWARD UHLER. - EXPLAINING THE COVALENT BOND.‎

‎Wave Mechanics and the Normal State of the Hydrogen Molecule.‎

‎Easton, PA., Mack printing Compagny, 1927. Royal8vo. Contemp. full cloth. Spine gilt and with gilt lettering. In: ""Proceedings of the National Academy of Sciences of the United States of America"", Vol. 13. IX,865 pp. (Entire volume offered). Condon's paper: pp. 466-470.‎

‎First printing of pioneering paper uniting chemistry with Quantum mechanics. Condon explains the chemical bond by means of the new wave mechanics. A wave function is formulated that involves the introduction of a pair of electrons (the hydrogen molecule) in an electron orbital that extends about two ore more atomic nuclei. Together with a paper by Heitler and London from the same year, this paper marks the beginning of a new era in chemistry as it explains the chemical bond in terms of the new physics.Henry M. Leicester ""Source Book in Chemistry 1900-1950"", pp. 151-156.The volume contains also Condon's paper. ""Coupling of electronic and nuclear Motions in Diatomic Molecules"", pp. 462-466.‎

Référence libraire : 48883

‎"COLDING, A(UGUST LUDVIG).‎

‎Undersøgelse over Vanddampene og deres bevægende Kraft i Dampmaskinen [Investigation of the Water Steams and their Moving Power in the Steam Engine]. (Særskilt aftrykt af det Kgl. Danske Videnskabernes Selskabs Skrifter, 5te Række, naturvidenskabelig ... - [THE STEAM ENGINE - PRESENTATION-COPY]‎

‎Kjöbenhavn (Copenhagen), 1852. 4to. Original blue-green blank glitted gift-binding. Wear to spine with loss of paper, otherwise just a bit of wear to extremities. Internally a bit of occasional brownspotting. Stamps to title-page. 35 pp.‎

‎"COLDING, A(UGUST LUDVIG).‎

‎Undersøgelse over Vanddampene og deres bevægende Kraft i Dampmaskinen [Investigation of the Water Steams and their Moving Power in the Steam Engine]. (Extract from: Kgl. Danske Videnskabernes Selskabs Skrifter, 5te Række, naturvidenskabelig og Matemat... - [THE STEAM ENGINE]‎

‎(Kjöbenhavn [Copenhagen], 1853). 4to. Unbound. Uncut and unopened. A nice and clean copy. 35 pp.‎

‎"COLDING, LUDVIG AUGUST.‎

‎Naturvidenskabelige Betragtninger over Slaegtskabet mellem det aandelige Livs Virksomheder og de almindelige Naturkraefter. [i.e. ""Scientific Reflections on the Relationship between the Intellectual Life's Activity and the General Forces of Nature""]. - [PRESENTATION-COPY]‎

‎Copenhagen, 1856. 8vo. Bound with the original blank glitted front wrapper in contemporary boards with cloth back-strip. Stamp to title-page. A bit of overall wear and minor brown-spotting. 15 pp.‎

‎"COMPTON, ARTHUR HOLLY.‎

‎A Quantum Theory of the scattering of X-Rays by Light Elements. - [THE DISCOVERY OF THE COMPTON-EFFECT, NOBEL PRIZE PAPER]‎

‎Lancaster, American Physical Society, 1923. Royal8vo. In the original printed wrappers. In: Physical Review, Second Series, Vol. 25, No. 5, May 1923. With black cloth back-strip. Front wrapper missing top right corner and front wrapper washed/polished. Internally fine and clean. [Compton's paper:] pp. 483-502. [Entire issue:] Pp: 483-584.‎

‎"CONDON, EDWARD UHLER. - EXPLAINING THE COVALENT BOND.‎

‎Wave Mechanics and the Normal State of the Hydrogen Molecule.‎

‎Easton, PA., Mack printing Compagny, 1927. Royal8vo. Contemp. full cloth. Spine gilt and with gilt lettering. In: ""Proceedings of the National Academy of Sciences of the United States of America"", Vol. 13. IX,865 pp. (Entire volume offered). Condon's paper: pp. 466-470.‎