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Berlin und Posen, Mittler, 1825 a. 1827. Bound in one contemp. hcalf. Gilt spine. Gilt lettering. Light wear along edges. Stamp on first title-page. XII,143,(1) pp. + (2),102 pp.

(Berlin, Julius Springer, 1926). 8vo. Without wrappers. Extracted from "Mathematische Annalen. Begründet 1868 durch Alfred Clebsch und Carl Neumann. 95. Band". Pp. 683-704. First printing. This paper was written as a mathematical exposition of the Three-Man-Paper 'Zur Quantenmechanik II' by Born, Jordan, and Heisenberg from the same year.

Amsterdam, Hulst van Keulen, 1849. 4to. Contemp. clothbacked boards. Stamp on title-page. XX,116 pp. Internally clean and fine.

(Kbhvn.), 1676. Lille 4to. Senere marmoreret papbd. med skindtitel på ryg. Lille stempel på titelblad. 238 pp. Indvendig frisk og velbevaret. Originaltrykket af Berings latinske beskrivelse af Københavns belejring, som blev udgivet efter hans død af Willum Worm.

Stift Kempern, Hof-Buchandlung, 1789. 2 contemp. hcalf. Raised bands. Gilt spines. Titlelabels with gilt lettering. Light wear to spineends. Stamp on title-pages. (36),565;(2),625 pp.

Leipzig, B.G. Teubner, 1888. 8vo. Original printed wrappers, no backstrip. In "Mathematische Annalen. Begründet 1888 durch Rudolf Friedrich Alfred Clebsch. XXXIII. [33] Band. 1. Heft." Entire issue offered. Wrappers with a few nicks, internally fine and clean. [Killing:] Pp. 1-48. [Entire issue: Pp. IV,160 pp]. First publication of Killing's seminal paper in which he laid the foundation of a structure theory for Lie algebras."In particular he classified all the simple Lie algebras. His method was to associate with each simple Lie algebra a geometric structure known as a root system. He used linear transformation, to study and classify root systems, and then derived the structure of the corresponding Lie algebra from that of the root system."(Companion Encyclopedia of the History and Philosophy of the Mathematical Sciences)Unfortunately for Killing a myth arose that his work was riddled with error, which later has been proved untrue. "As a result, many key concepts that are actually due to Killing bear names of later mathematicians, including "Cartan subalgebra", "Cartan matrix" and "Weyl group". As mathematician A. J. Coleman says, "He exhibited the characteristic equation of the Weyl group when Weyl was 3 years old and listed the orders of the Coxeter transformation 19 years before Coxeter was born."The theory of Lie groups, after the Norwegian mathematician Sophus Lie, is a structure having both algebraic and topological properties, the two being related.

Hafniae, 1805. 4to. Samt.hldrbd. Bindet med brugsspor. VIII,184,(54) pp. - Anden danske farmakopé.

Paris, Louis Coignard, 1701. 12mo. In contemporary coloured floral printed wrappers. Small paper-label pasted on to top of spine. Wear to extremities. Title-page with underlinings in red, otherwise internally nice and clean. (16), 235 pp. First edition of this translation of Hygiasticon, first published by Plantin in 1613, of this treatise on health care, and how to keep general and mental fitness until old age, by the Flemish Jesuit Lessius (1554-1623). Vicaire 212.

Kiøbenhavn, Glasings Efterlevelse, 1756. 8vo. Samtidigt hellæderbind. Ophøjede bind på ryg. Rig rygforgyldning. Bind og især ryg med slitage. Indvendig pæn og ren. (16), 796 pp Originaludgave af Havens religionsfilosofiske system, "et fuldstændigt theologisk System, det første paa Modersmålet..." (Bricka VII,p.171). Systemet blev udarbejdet, efter von Haven 1747 blev udnævnt til professor ved det genoprettede Sorø Akademi. Her forlæste han over kirkehistorie, dogmatik og moral. Peder v. Haven er måske bedre kendt som forfatter til "Rejse i Rusland" (1743), et anset værk som blev ledsaget af et anbefalende forord af Ludvig Holberg og "Nye og forbedrede Efterretninger om det russiske Rige" (1747). Extremely scarce first edition, in excellent condition, of the first Danish complete theological system. Biblioteca Danica I, 174.

Amsterdam, No printer, 1787. 8vo. Bound in two uniform half calf with gilt title-label to spine. Ex-libris pasted on to pasted down front end-paper. Spines with wear, however, firmly attached to book block. A Nice and clean copy. 240 pp.; 240 pp. Early edition of d'Argenson's famous collection of portraits and stories about contemporary characters. A new edition was published under the title of Mémoires relatifs à la Révolution mémoires in 1825.

Lpz., Wien,Zür., Int.Psych. Verlag, 1925. With orig.frontwr., tear in this. Loose. 132 pp. First edition.

Firenze, Bartolomeo Sermartelli, 1574. 4to. Marbled papercovers. Ff. 16 (=32 pp.). First edition. - Adams B:81.

Dresden, Authore/Martini, 1723. Small 8vo. Contemp. full vellum. Some vellum (1 cm.) cut away on outher edge on upper cover. Stamp on title-page. (16),208 pp., 5 folded engraved plates.

Hafniae, Thiele, 1832. Uncut in original blank wrappers. Titlepage with engraved vignette. Printed titlepage. (2),XVI,340,(2) pp. Ren og frisk. Oldnordisk og latinsk tekst. Originaltrykket. - Fiske I,326.

(London, Richard Taylor and William Francis, 1852). 4to. No wrappers as extracted from "Philosophical Transactions" 1852 - Part I. Pp. 65-82. (Thomson pp. 78-82). a. 1 engraved plate. The plate with a dampstain., otherwise clean and fine. First appearance of an importent paper in which both Joule and Lord Kelvin publish some thermo-dynamical results in connection with heat developed by air and mechanical work as further proofs of the conservation of energy.Joule is well known for his discovery of Joule's Law, the connection between heat and mechanical work, where heat is a form of energy. "In December of 1840 he presented a paper to the Royal Society on the production of heat by the electric current. His course of thought led him to the consideration of the relatio between heat and and mechanical work. The results of his investigations were embodied in a series of papers which culminated in his great memoir on the mechanical equivalent of heat, published in 1850. Joule was one of the founders of the principle of the cosservation of energy. Some of his work was done in collaboration with Lord Kelvin."(Source Book in Physics p. 203).

Paris, Gauthier-Villars, 1956. Royal8vo. Uncut in the original printed wrappers. Fine and clean. VII, (1), 297, (2) pp. First printing of de Broglie's important work on nonlinear wave mechanics. "The early 1950s again witnessed a major change in de Broglie’s views. Impressed by the nonlocal theory put forth by David Bohm in 1951, which reintroduced pilot-waves, de Broglie turned back to his first theoretical convictions. Surrounded by some faithful followers, de Broglie resumed his quest for a causal interpretation, this time supplementing his initial views with the idea of nonlinear dynamics for the singular wave. This was, however, increasingly perceived as a marginal research program, even in his own country, where quantum theoreticians preferred to stick to more mainstream physics, less fundamental and closer to the wealth of new experimental data emerging in the 1950s." (DSB).

Berlin, Springer, 1928. 8vo. In "Zeitschrift für Physik" bd. 47. Entire volume offered. In contemporary half cloth with marbled boards. Library stamp to front free end-paper. A fine and clean copy. Pp. 151-173. [Entire volume: VII, (1), 914 pp.]. First printing of this significant paper. "Following Dirac's precedent, Jordan, Heisenberg, and Pauli developed the relativistic quantum electrodynamics. This theory occupied physicists for a good twenty years before it became clear that, in spite of all the doubts and disappointments, one of the most precise physical theories had been discovered." (DSB)"It was evident from the beginning that a proper quantum treatment of the electromagnetic field had to somehow incorporate Einstein's relativity theory, which had grown out of the study of classical electromagnetism. This need to put together relativity and quantum mechanics was the second major motivation in the development of quantum field theory.Pascual Jordan and Wolfgang Pauli showed in 1928 that quantum fields could be made to behave in the way predicted by special relativity during coordinate transformations".

(Paris, Bachelier), 1853. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 36, No 16. Pp. (669-) 707. (Entire issue offered). Regnault's paper: pp. 676-687. A few marginal brownspots. First apperance of this very importent paper where Regnault declared his acceptance of the conservation of energy."Speculation and discussions of theory are noticeably absent from Regnault’s published work, as they are from his surviving notebooks. But in 1853 he declared his acceptance of the principle of the conservation of energy; and later he measured the mechanical equivalent of heat, although with only moderate success. In declaring his support for the principle, Regnault stated that he had subscribed to the mechanical theory of heat “for a long time” and that he had been led to it independently through his own experiments "Comptes rendus... de AcademiE des sciences..." (The paper offered). "(DSB).Roberts & Trent "Bibliotheca Mechanica", p. 275.

Uppsala & Stockholm, 1906. 4to. Uncut in orig. printed wrappers as issued. (4),119 pp., 2 textillustr. (Kungl. Svenska Vetenskapsakademiens Handlingar. Band 41. N:o 3). A waterstain effecting inner margins on ab. 30 pp. First edition. Gullstarnd's mathematical description of the mechanisms of the human eye led to the conception of new models and understandings, a big step beyond Helmholtz. Gullstrand was awarded the Nobel Prize in 1911.

Londres (i.e. Amsterdam), Depens de la Compagnie, 1737. 8vo. In a contemporary Cambridge-style mirror binding with five raised bands and richly gilt spine. All edges coloured in red. Old paper-label pasted on to top of spine. A few scratches with some loss leather to boards. Internally very nice and clean. 269 pp.

Leipzig, Caspar Fritsch, 1802-04. Bound in 3 contemp. hcalf, richly gilt spines. Stamp on titlepages. XXII,510,(1);XII,592,(1);X,594,(1) pp. Internally clean and fine. First edition.

Kiøbenhavn, Gyldendal, 1814, 1815 & 1816. 8vo. Uniformly bound, uncut, in three recent black full cloth bindings. First and last leaves soiled but an overall nice set. XX, (2), 412 pp. + 1 frontispiece and 1 folded map; XX, 418 pp. + 1 folded map.; XX, 440 pp. + 1 frontispiece and 1 folded map.

Berlin, Schlesingerschen Buch= und Musikhandlung, 1821. Contemp. hcalf. Richly gilt spine, titlelabel with gilt lettering. A paperlabel pasted on upper part of spine. Stamps on title-page. XVI,260 pp. and 9 large folded engraved plates. Some brownspots to plates. Klaus Jordan, 2858.

Kiøbenhavn, Nicolaus Møller, 1765. 4to. Samtidigt hldrbd. med rig rygforgyldning og forgyldt titelfelt. Lidt slid ved kapitæler og langs false. Hjørner stødte. Kobberstukket portræt af Peder Oxe. (32),436,(12) pp. Indvendig ren og frisk. Eksemplaret har tilhørt Knud Scavenius og bærer hans stemplede våben på fribladet. Yderligere med Knud Hendriksens exlibris indklæbet på indersiden af forpermen.

Weimar, Landes=Industrie=Comptoirs, 1801. Unbound, but stitched. (2),XXI,120 pp. Occassional light browning to leaves, a few scattered brownspots. First German edition of "An Account of Travels into the Interior of southern Africa in the Years 1797 and 1798, London, 1801." (Bibliothek der neuesten und wichtigsten Reisebeschreibungen...hrsg. von M.C. Sprengel, fortgesetzt von T.F. Ehrmann, Bd. 5: 1. Theil.) . Also having the series titlepage, this with a stamp.