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Kjøbenhavn, Reitzel, 1845. Lille kvadratisk 8vo. Samtidigt hshirtbd. rygtitel i guld. Udmærket rent eksemplar. Originaludgave af Blichers sidste værk, som kom i et lille oplag. Bertelsen 34.

Paris, Paul Dupont, 1849. 8vo. In later half cloth with gilt lettering and stamp to front board. Offprint from "Annales Hydrographiques". Three small stamps and underlinings to title-page, otherwise a fine copy. 31, (1) pp.

Frankfurt, J. B. Andreae & H. Hort, 1745. 8vo. In contemporary full calf with four raised bands and blindstamped spine. A few scratches to boards otherwise a nice and clean copy. Printed on good paper. (8), 151 pp.

(København, 1834). 4to. Samtidigt papbd. med håndskreven titeletiket på forperm.. Ryg med lettere brugsspor. Stempel på titelblad. 152 pp. samt 19 litograferede dobbeltsidede folio-plancher, foldede. Teksten på skrivepapir.

Kopenhagen und Leipzig, Schubothe, 1801-02. 2 contemp. hcalf. Gilt spines. Titlelabels partly gone. Spines rubbed. Stamp on title-pages. XVI,282;XXX,762 pp. Bd. I: Länder zwischen der Wipper, den Rhein, der Ruhr und Lippe. - 2. Bd.: Länder zwischen der Wipper, dem Rheine, der Ruhr, lenne, Düssel und Vollme.

(Berlin, G. Reimer, 1829). 4to. No wrappers. Extracted from"Journal für die reine und angewandte Mathematik. Hrsg. von A.L. Crelle, 4. Band". No backstrip. A fine and clean copy. [Jacobi:] pp. 371-390. [Entire issue: Pp. 311-422 + 1 folded plate]. First printing of a key memoir in the establishment of "Elliptic Functions". The acknowledged founders of the theory of "Elliptic Functions" are Abel and Jacobi. Both had arrived at the key idea of working with inverse functions of the elliptic integrals, an idea Abel had since 1823. Jacoby next gave proof of the results he had published in 1827 ( a paper published in "Astronomische Nachrichten" in several articles in Crelle's Journal for the years 1828-30, -the offered paper is one of these."The most celebrated results of his research were those in elliptic functions, published in 1829, which brought him the praise of Legendre."(Boyer). The offred paper was incorporated in Jcobi's main work "Fundamenta nova theoriae functionum ellipticarum", published 1829. Selvom

(Berlin, C.F. Voss, 1772. 4to. Without wrappers as extracted from "Nouveaux Mémoires de l'Academie Royale des Sciences et Belles-Lettres", Annee 1770, pp. 225-244 and 1 engraved plate. First edtion. In this paper Lambert starts from a simple problem for a function of 2 variables x and y, then proceeds to expand the method to more difficult differentiations.

(Leipzig, Joh. Ambrosius Barth, 1829) Without wrappers. In "Annalen der Physik und Chemie. Hrsg.von Poggendorff", Bd. 17, Zehntes Stück. Pp. 193-304. (The entire issue offered). Weber's paper: pp. 193-246. Clean and fine. First appearance of this pioneer-paper which helped establishing the foundation of the acoustic theory of this group of musical instruments which depends on coupling of the tongue and the air cavity in the instruments. One of the subjects treated was the use of this coupling to maintain constancy of pitch of a pipe under different intensities of blowing, and the possibility that this might provide an improved standard of pitch.

Stuttgart, W. Kitzinger, 1879. Contemp. hcalf. Spine gilt. A paperlabel pasted on spine. Stamp on titlepage. IX,374 pp., textillustr., 3 plates and 2 folded plans. Some leaves with faint pencil-underlinings. First edition. An early work on the military telegraph, its history and organization. - Wheeler Gift Cat.: 2141.

Cont. hcalf. Gilt back. X,308 pp. Withbound: Robert Bently Todd. Vorlesungen über Gicht und Rheumatismus...übertragen von Fr. J. Benhrend. VI,130 pp. (Bibliothek von Vorlesungen, bde XXXV u. XXXVI).

Cont. hcalf with gilt back. Lower compartment of back with a tear.

Odense, S. Hempel, 1823. Lille 4to. Lidt senere hldrbd. Rygforgyldning og rygtitel. Ryg med brugsspor. Litograferet titelblad. Lidt spredte brunpletter. Originaludgaven. - Bertelsen 8.

(London, Harrison and Sons, 1883). 4to. No wrappers as extracted from "Philosophical Transactions" 1883. Vol. 173 - Part II. Pp. 493-521, textillustrations. Fine and clean. First appearance of Thomson's second paper on the Vortex Atom. In 1882 he had won a prize with the subject "a general investigation of the action upon each other of two closed vortices in a perfect incompressible fluid"The first attempt to construct a physical model of an atom was made by Lord Kelvin in 1867. The main point was that in an ideal fluid, a vortex line is always composed of the same particles, it remains unbroken, so it is ring-like."In fact, the investigations of vortices, trying to match their properties with those of atoms, led to a much better understanding of the hydrodynamics of vortices - the constancy of the circulation around a vortex, for example, is known as Kelvin's law. In 1882 another Thomson, J. J., won a prize for an essay on vortex atoms, and how they might interact chemically. After that, though, interest began to wane - Kelvin himself began to doubt that his model really had much to do with atoms, and when the electron was discovered by J. J. in 1897, and was clearly a component of all atoms, different kinds of non-vortex atomic models evolved."(Michael Fowler).

Ubeskåret m. begge orig. for- og begge orig. bagomsl. i ét solidt hldrbd. af langnarvet maroquin m. rygforgyldn. (Harry Larsen). Aldeles friskt ekspl. Originaludgave.

Kiøbenhavn, Gyldendal, 1787. Et samtidigt hldrbd. med skindtitel og rygforgyldning. Kobberstukket titelblad med en stor kobberstukket vignet samt bogftrykt titelblad. XVI,451,102 (af 104) pp. Sidste blad af anden del mangler. Få spredte brunpletter. Originaludgaven.

Uppsal & Stockh., 1909-13. 4to. 4 parts with orig. wrappers. 213,86,166,276 pp., textillustr. and 21 plates. (Kungl. Svenska Vetenskapsakad. Handl.).

Leipzig, Barth, 1917. 8vo. In full black cloth with gilt lettering to spine. In "Annalen der Physik", Vol. 53, 1917. Entire volume offered. Library labels pasted on to front free end papers, stamp to title page. Otherwise fine and clean. Pp. 575-614. [Entire volume: VIII, 650 pp. + 4 plates.]. First printing of Kretschmann famous paper in which he claimed that Einstein's use of the principle of covariance in General Relativity is vacuous. Kretschmann claimed that the demand that a theory be put in generally covariant form does not limit or restrict the range of acceptable theories, but is simply a challenge to the mathematician's ingenuity. According to Kretschmann, any theory can be put in generally covariant form. Einstein responded that even if general covariance is not a purely formal limitation on acceptable theories, it plays "an important heuristic role" in the formulation of General Relativity."Erich Justus Kretschmann (born in Berlin in 1887) had just gotten his doctorate under the guidance of Max Planck by attempting to provide a Lorentzcovariant theory of gravitation. In December 1915 he published a two-part paper with a certain epistemological flavor (Kretschmann, 1915), in which, by relying on the work of Henri Poincaré and Ernst Mach, he argued that only "topological" relations encoded in pointcoincidences are directly accessible to experience (Sect. 3). It was only shortly after the paper was distributed that Einstein started to use the expression "point-coincidences" in private correspondence with Paul Ehrenfest, MicheleBesso and Hendrik Lorentz, in order to convince them that solutions of the field-equations that differ only by a coordinate transformation are physically equivalent (Sect. 2). Einstein then abruptly inserted the argument into thequite different mathematical tradition that had culminated in Ricci and Levi-Civita’s absolute differential calculus (Sect. 4). Kretschmann himself swiftly realized this, and in August 1917 he turned the public version of the pointcoincidence argument against Einstein in a paper that would make him famous [The present]. The paper rediscovered by James L. Anderson in the mid-1960s was destined to become a classic and has therefore been widely discussed in the historical and philosophical literature."

Paris, Levy et Cie, (1896). Folio. (43x32 cm). Bound uncut with orig. printed wrappers in a recent fine full cloth. Titlelabel in leather with gilt lettering on spine. X,240,(6) pp. 34 engraved plates and 104 textillustrations. Internally clean and fine, printed on fine paper.

Iserlohn, 1877. Lex 8vo. Worn half calf. Back hinge very worn and weak and top capital worn off. Internally nice and clean. A few leaves with pencil underlinings and a marginal note on p. 94 (presumably in Høffding's hand). (8),149 + 1 double-page plate. First edition of Lange's logical magnum opus, Harald Høffding's copy with his ownership signature to half-title. "Friedrich Albert Lange (1828 - 1875) was a German philosopher, pedagogist, political activist, and journalist. Lange is a significant figure among the mid nineteenth century German intellectuals who were concerned to think through the impact of developments in natural science for politics, philosophy, and pedagogy. Lange played a significant role in the German labour movement and in the development of social democratic thought. He articulated a socialist Darwinism that was an alternative to early social Darwinism. His work The History of Materialism and Critique of its Contemporary Significance was a classic text in materialism and the history of philosophy well into the twentieth century. The “materialism controversy” centered on the impact of materialist science and philosophy on religion and metaphysics. Lange’s response to the materialism controversy had an influence on the neo-Kantian movement and on Friedrich Nietzsche, among others. Lange was one of the originators of “physiological neo-Kantianism” and an important figure in the founding of the Marburg school of neo-Kantianism. His work in logic, culminating in Logical Studies, derived the syllogistic from diagrammatic reasoning, and was admired by Ernst Schröder and John Venn. Lange’s sympathetic critique of materialism, his philosophical naturalism, and his political activism unite his diverse achievements, and distinguish him among nineteenth century philosophers." (SEP). Harald Høffding (1843-1931) was one of the leading Danish philosophers of the turn of the century. His philosophy is greatly inspired by positivism, which around 1900, mainly due to Avenarius and Mach, came to be synonymous with empiriocriticism.

Berlin, Springer, 1924. Nice cont. full cloth, gilt. XII,232 pp. Garrison & Morton No 793. First German edition. Krogh received the Nobel Prize for Physiology in 1920. His most importent work was on the physiology of Capillaries. (Here in first German edition).

Wien, Seidel & Sohn, 1870. Contemp. hcalf. Gilt spine. Gilt lettering. Stamps on title-page. VIII,181 pp., 3 large folded plates. Stamp on plates.

(Berlin, Haude et Spener, 1771). 4to. No wrappers as issued in "Memoires de l'Academie Royale des Sciences et Belles Lettres". tome XXV, pp. 285-302. Fine and clean. First printing of one of Euler's papers in probabilistic analysis, dealing with an analysis of a lottery for which there are several classes and a guarateed payment.The Genoise lottery was the first number lottery. It and its variants were discussed by many mathematicians because such lotteries were perceived to be unfair and because they gave rise to many interesting problems. Usually it took the form of choosing 5 from 100 with various payoffs depending upon the wager made. - Enestroem E 412.

Stuttgart, W. Kitzinger, 1879. Contemp. hcalf. Spine gilt. A paperlabel pasted on spine. Light wear to edges. Light wear to top of spine. Stamp on titlepage. IX,374 pp., textillustr., 3 plates and 2 folded plans. Internally clean and fine. First edition. An early work on the military telegraph, its history and organization. - Wheeler Gift Cat.: 2141.

Helsf., 1925- 32. Lex8vo. Hldrbd. XXXI, 576, XII, 713 pp.

Hafniae, 1952. Large 4to. Uncut in orig. wrappers. XXII,1028 pp. 2 portraits. One of 500 copies.