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Kiøbenhavn, S. Poulsen, 1796. Samt. hldrbd. med rygforgyldning og skindtitel. Ryg med lettere brugsspor. (6),VI,372 pp. samt 12 kobberstukne foldeplancher. Originaludgaven. Bagerst i dette eksemplar er medindbundet Bugges lille lærebog: "Laanesætninger af de optiske Videnskaber og Aerometrien" fra 1810. 27 pp. Dog uden titelbladet.

(Leipzig, Barth), 1818. No wrappers. In: "Annalen der Physik. Neue Folge. Herausgegeben von L.W. Gilbert", Bd. 28, Drittes Stück. Pp. 233-344,(2) pp. a. 1 engraved plate. (Entire issue offered). The paper of Dulong & Petit: pp. 254-280. First appearance in German (edited by Gilbert) of this, their (first) joint paper, which initiated the recheches leading to the the "Law of Dulong and Petit", the connection between atomic weight and atomic heat. The original Frensh having the title: Recherches sur les lois de dilation des solides, des liquides et des fluides élastiques, et sur la mesure exacte des temperatures.""In 1815 Dulong’s famous collaboration with the mathematical physicist Alexis Thérèse Petit began; it produced three important memoirs on heat (of which this is the first). The best-known part of this work is the statement of the law of constant atomic heats that bears their names, .... They began with the fundamental problem of measuring quantities of heat, which involved a critical analysis of thermometric scales. In 1804-1805 Gay-Lussac had carried out a comparison of mercury and air thermometers between 0°C. and 100°C. Dulong and Petit extended the range of comparison up to 300°C. and found an increasing discrepancy between the two scales at higher temperatures." (DSB).

A La Haye, Voys, 1703. 8vo. In contemporary full calf with five raised bands and richly gilt spine. Edges of boards gilt. Small paper-label pasted on to top of spine. Scratches to boards. Title-page with underlinings in red, otherwise internally nice and clean. (10), 174, 189, (2) pp. First edition of this a political and historical treatise on the Dutch Republic and the War of the Spanish Succession (1701–1714), a large European conflict was initiated by the disputes over the Spanish throne after the death of Charles II of Spain.

Strasbourg, Jonas Lorenz, 1745. Uncut in contemporary marbled boards. Handwritten title on spine. Stamp on title-page. Engraved frontispiece. (16),322,(4) pp. and 12 large folded engraved plates showing machinery of war from antiquity (catapults, ballistas etc.). Internally fine and clean. First edition. - Rumpf No 87.

Leiden, ex Officina Abraham Commelini, 1646. 4to. 18th century half calf, spine and boards with signs of wear. Engraved titlepage torn at right edge with loss of paper. (16], 996, [56] pp. Index pages with tears and loss of text. Old Danish inscriptions on flyleaf.

Berlin, 1755. 4to. Uncut in contemp. clothbacked stiff boards. X,102 pp. and 2 folded engraved plates. Wide-margined. A few scattered brownspots. Klaus Jordan, 2703.

Berlin, Gruyter & Co., 1930. 4to. Orig. printed orange wrappers. Offprint/Sonderausgabe aus Sitzungsberichten...pp. (1)-8. Fine fresh copy. First edition in the scarce Offprint with its separate printed title and separate pagination. See Weil No. 169, where this is not mentioned.The early Offprints from "Sitzungsberichten..." are called "Sonderabdruck" up to Weil No.165 (including this). From Weil 166 they are called "Sonderausgabe...". - Before 161 (up to 160) the Offprints do not have separate title and pagination (the pagination follows the numbering in the periodical). From 166 the Offprint has both separate printed title and pagination. - ( So Weil Nos 161-165 is still "Abdruck", but with separate title and pagination). These facts are not mentioned in the bibliographies.

Copenhagen, Reitzel, 1910. Uncut in orig. printed wrappers. 473 pp., 15 plates. (Meddelelser om Grønland, Bd. 34).

(Paris, Gauthier-Villars), 1886. 4to. No wrappers. In: "Comptes Rendus hebdomadaires des Séances de L'Academie des Sciences", Tome 102, No 18. Pp. (991-) 1041. (Entire issue offered). The papers: pp. 1003-1004 a. 1005-1006. First apperance of the papers in which Lecoc de Boisbaudran described how he separated Holmium into two kinds of earths and naming them."He accomplished this by fractional prepicitation, first with ammonium hydroxide and then with a saturated solution of potassium sulfate, and found that the constituents of pure holmium solutions precipitate in the folloeing order: terbium, dysprosium, holmium, and erbium. Lecog de Boisbaudran never had an abundant supply of raw materials for his remarkable researches on the rare earths, and he once confided to professor Urbain that most of his fractionations had been carried on on the marble slab of his fireplace."(Weeks "Discovery of the Eelements").Parkinson "Breakthroughs", 1886 C.

Kbhvn., 1904-10. Lex8vo. 2 samt.hldrbd. 559,667,VII pp. Illustr.

(Paris, Bachelier), 1841. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome XIII, No. 10. Pp. (487-) 558. (Entire issue offered). Matteucci's paper: pp. 540-41. First appearance of a main paper in the history of electro-physiology."The discovery by Volta of means for producing galvanic currents led to the construction of a galvanometer for measuring currents and later to its refinement.... In 1841 Matteucci presented... a paper which showed that a galvanometer indicates a curring flowing whenh it is connected from the surface of a muscle to a wound in the muscle, a current that was later called the "current of injury" and also the "current of rest", since it flowed without observable muscular contraction. Johannes Müller showed tis paper to his brilliant pupil, du Bois-reymond... Du Bois interest was caught at once. He published his first paper on "thierische Electricität" in 1843, and his two-volumes on the subject - soon to become the classic - in 1848-49."(Boring "History of Experimental Psychology", p. 40).

Guernesey, L'Imprimerie de Dumaresq et Mauger, 1826. 8vo. Uncut in orig. printed boards. Spine defective. (14),393 pp. Uncut and clean. On good paper.

Cracovie, Imprimerie de L'Université, 1915. 8vo. In the original printed wrappers. Offprint from "Bulletin de L'Académie des Sciences de Cracovie", Juillet 1915. Very fine and clean, near mint. Pp. (2), 164-178. Offprint issue of Smoluchowski's paper on certain deficiencies of the foundations of the law of entropy and the basic Boltzmann equation of the kinetic theory of gases.

Bound in 5 uniform cont. full mottled calf, richly gilt backs. Top of spines a little worn.

London, Longman, Orme, Brown, 1840. Cont. hcalf. Tear in titlelabel, fronthinge weak. The engraved titlepage dampstained and brownspotted, otherwise good. VI,376 pp. Fine woodengr. in the text. BMC,NH. V:2055. First edition.

(Paris, Gauthier-Villars), 1898. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 129, No 16. Pp. (567-) 626. (Entire issue offered). Debierne's paper: pp. 593-595. Paperquality rather poor, a bit fragile. First appearance of the paper in which Debierne announced his discovery of a new radioactive element found in uranium residues."In 1906 Professor Hahn discovered radioactinium between actinium an actinium X. Actinium emanation, or "action", like radon, is an inert gas, was discovered independently by F. Giesel and André Debierne." (Weeks "Discovery of the Elements", p. 307.Parkinson "Breakthroughs" 1899 C.

(Leipzig, S. Hirzel), 1904. Without wrappers. In: "Jahrbuch der Radioaktivität und Elektronik", 1. Bd., heft 2. Pp. 103-214 (entire issue offered). Rutherford's paper: pp. 103-127 First appearance of the paper in which Rutherford set forth his early - before 1911-model - model of the atom, the so-calles Saturnian Model. Rutherford pictured here the radioactive atom as a giant whirligig of electrons and alpha-particles, whose stability is somewhat disturbed, perhaps as a result uncompensated radiation losses, precipitating the expulsion of some of its constituents with the tremendous speeds they possessed befiore the explosion.

London, HSMO by Eyre and Spottiswoode, 1863. Folio. In contemporary half calf with gold stamp to front board. . Light wear to extremities, internally fine and clean. (2), 80 pp. + 4 folded coloured plates. Rare first edition of the official British report on ship wrecks and casualties in United Kingdom's waters for the year 1862.

(Paris: Gauthier-Villars), 1882. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences", Vol 94, No 7. Pp. (361-) 472. (Entire issue offered). Charcot's paper: pp. 403-405. First apperance of an importent paper in dynamical psychology. "He (Charcot) believed that hypnosis always passes through three stages - from lethargy to catalepsy to somnambulism. He found that the symptoms of these stages closely resemble the symptoms of hysteria... he described the symptoms of both states - hysteria and hypnosis - in standard medical terms as modifications in muscular states, reflex movements and sensory responses. It was in such form that he related to the Academie des Sciences on february 13, 1882 (the paper offered), the Académie which had thrice rejected mesmerism, and Charcot won a complete acceptance tor these medical findings..."(Boring "A History of Experimentaæl Psycology", p.698).Also with another importent paper: MARCEL DEPREZ "Sur la transport électrique de la force aux grandes distances" and "Des actions électriques dans les systèmes conducteurs semblables". Pp. 434 a. pp. 431-433.

Paris, Barrois l'âine, 1806-09. 3 uniform contemp. hcalf. gilt spines. Gilt lettering. Stamps on title-pages. XXII,371;XVI,296;XVI,390 pp., 2 folded tables. The plates lacks.

Berlin, 1820. 2 cont. boards. Extremities a little rubbed. XVIII,452,(2),VIII,434 pp. and 4 engraved folded plates.

London, Printed for A. Cruden, 1769. 4to. Contemp. full calf. Raised bands. Titlelabel with gilt lettering. Spine a bit rubbed. Leaves unnumbered (ca. 1000 pp.). Engraved portrait as frontispiece.

Kastellet, Roskilde, 17.11.1910. Lille 4to. 2 sider. W. takker for et brev og skriver: "Men bekom De ikke for nogen Tid siden fra mig en Hoben Aandrigheder?/Og Du vil have flere!" W. skriver om en Krøyer-tegning, "som jeg for R. synes er daarlig...", stiller en del spørgsmål vedr. manuskripter og teatre, og afslutter: "Har skrevet et Satyrspil, skriver paa et og skal skrive to til. Bog til Gyld. til Foraaret. Derpaa er Knagsted. Og saa et Teaterstykke."...

Paris, Crochard, 1836. 8vo. In contemporary half calf with gilt lettering spine and five raised bands. The original wrappers withbound in the back. In "Annales de Chimie et de Physique", tome 62. Entire volume offered. Paper label pasted on to top of spine. Three stamps to verso of title-page. A few light occassional brownspots, otherwise a fine copy. 23-31. [Entire volume: 448 pp.]. First appearance of Laurent's paper in which he presents his discovery of the compound Hydrobenzamid.

Kiøbenhavn, 1792. 8vo. In contemporary decorated paper covered boards. Ex-libris and previous owner name to verso of front board. Wear to extremities, a few stains to boards, spine miscoloured and paper cracked. Bookblock split between P. 144 and p. 145. (8), 281, (3) pp. Rare first Danish translation of Duvernet's biography of Voltaire. Biblioteca Danica II, 540