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Cambridge, Macmillan and Co., 1851. 8vo. Bound with the original front wrapper in contemporary half calf with black and red title labels to spine with gilt lettering. In "The Cambridge and Dublin Mathematical Journal", Vol. VI [6], (Being Vol. X [10], of the Cambridge Mathematical Journal), 1851. Bookplate pasted on to pasted down front free end-paper and library code written in hand to lower part of spine. Library cards in the back. First two leaves detached, but present (Title page and index page). Otherwise a fine and clean copy. Pp. 87-106; Pp. 106-141. [Entire volume: IV, 293 pp.]. First printing of these two important paper by Boole and Cayley's famous note to include the very first Boolean determinant: "...the Hessian, or as it ought to be termed, the first Boolean Determinant" (P. 192).

Königsberg, Gebrüder Bornträger, 1829. Small 4to. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on upper part of spine. Stamps on title-page.XV,(2),160 pp. and large folded engraved map. Internally clean.

Berlin, Julius Springer, 1928. 8vo. Bound in contemporary half cloth with marbled boards and gilt lettering to spine. In "Zeifschrift für Physik, 51 Band., 1928", VII, (1), 903 pp.]. (Entire volumeoffered). Library stamp to front free end-paper. A fine and clean copy. [Gamow:] Pp. 204-212.. First printing of Gamow's seminal paper in which he explained alfa-decay for the first time. By 1928, George Gamow had solved the theory of the alpha decay via tunneling. The alpha particle is trapped in a "potential well" by the nucleus. In classic physics, it is forbidden to escape, but according to the then newly discovered principles of quantum mechanics, it has a tiny (but non-zero) probability of "tunneling" through the barrier and appearing on the other side to escape the nucleus. Gamow solved a model potential for the nucleus and derived from first principles a relationship between the half-life of the decay, and the energy of the emission. Alpha particles were first described in the investigations of radioactivity by Ernest Rutherford in 1899.Parkinson 507."One of the first applications of quantum tunneling was by the physicist George Gamow in 1928, soon after the development of quantum mechanics. Alpha particles, which consist of two protons and two neutrons, are emitted by some nuclei. For example, ordinary uranium, 238U, with a lifetime of 4.5 billion years, decays by emitting an alpha particle.For decades alpha decay had presented a problem: the emitted alpha particles seemed to have too little energy to get out of the nucleus. The Coulomb barrier arises from the combined effect of the Coulomb repulsion between the alpha particle and the nucleus (both positively charged) and the nuclear force that attracts the two particles. The energy of the emitted alpha particle is less than the top of this barrier. Classically, the particle would be unable to get out of the nucleus, but it obviously does.Gamow suggested that alpha particles tunnel through the barrier. If so, the half-life of the decay should depend on the width and height of the barrier, and it does: the lower and thinner the barrier, the greater the chance of penetrating it. As the alpha particle's energy increases, the particle sees both a lower and thinner barrier so the probability of getting through increases extremely rapidly. For example, the energies of the alphas emitted by 232Th and 212Po are 4.05 MeV and 8.95 MeV, respectively, while their respective half-lives are 14 billion years and 0.3 millionth of a second. Thus, a factor of about two in energy produces a difference in half-lives of sixteen orders of magnitude (that is, sixteen powers of ten)!" (Rigden, Building Blocks of Matter: A Supplement to the Macmillan Encyclopedia of , p. 393).

Leipzig, Grosse & Gleditsch, 1737. 4to. In: "Nova Acta Eruditorum Anno MDCCXXXVII". The entire volume offered in contemporary full vellum. Hand written title on spine. A yellow label pasted on to top of spine. A small stamp to title-page and free front end-paper. Library label to pasted down front free end-paper. As usual with various browning to leaves and plates. Pp. 82-88. [Entire volume: Pp. (4), 555, (33) + 7 engraved plates.]. First printing of Bernoulli's paper on the quadratura.The volume contains many other papers by influential contemporary mathematicians, philosophers and historians.

Berlin, Julius Springer, 1923. 8vo. Bound in contemporary half cloth with gilt lettering to spine. In "Zeitschrift für Physik", 18 band , 1923. The entire volume offered. Library stamp to title page. Internally a fine and clean copy. Pp. 272-286. [Entire volume: IV, 383 pp.]. First printing of Pauli's important paper on the equilibrium between free electrons and radiation at a given temperature.Pauli worked on the present paper while staying in Copenhagen and studying under Niels Bohr: "In Copenhagen Pauli had found some solace not so much by strolling in the beautiful streets as by thinking about problems other than the anomalous Zeeman effect. One problem in particular caught his interest during this time: The thermal equilibrium between radiation and free electron. It was motivated by the tremendous boost that the photon idea advanced by Einstein in 1905 received in 1923 when Arthur Holly Compton experimentally confirmed the relativistic kinematics for the scattering between a photon and a free electron at rest derived independently by himself and by Peter Debye." (Enz, No Time to be Brief: A Scientific Biography of Wolfgang Pauli, P. 99).

Tübingen, J.C.B. Mohr, 1932. 8vo. Orig. full grey cloth. A nice, clean and solid copy. XVIII, 491 pp. First edition of one of Cassirer's important works within the field of history of philosophy; the work was translated into English twenty years later under the title "Philosophy of the Enlightenment".Ernst Cassirer occupies a unique place in twentieth century philosophy. Untraditionally his works are equally concentrated on foundational and epistemological issues in the philosophy of mathematics and natural science and on aesthetics, the philosophy of history, and other "cultural" issues in general.No other German philosopher since the time of Kant has aimed so broadly and payed equal attention to the philosophy within both mathematical and natural sciences as well as the humanistic disciplines. He thus plays an otherwise non-existing mediating role in the 20th century between the different disciplines, as well as between analytic and continental philosophy, -two sorts of philosophy usually regarded as incompatible. - Cassirer was able to maintain fruitful philosophical relations with leading members of both traditions (e.g. with Moritz Schlick, the founder and guiding spirit of the Vienna Circle of logical empiricists, whose work in logic and the philosophy of science had a decisive influence on the development of philosophy in the United States, and on the other hand with Martin Heidegger, the dominating philosopher in continental Europe in the 20th century).Ernst Cassirer was born in Breslau in Poland in 1874. He studied philosophy of law, germanistics, philosophy, science of history, and history of art at the University of Berlin, where he became Privatdozent in 1906. In 1919 he became Professor of Philosophy at the newly grounded University of Hamburg, but being a Jew he had to leave the country in the beginning of the thirties. After having been visiting professor in Oxford for a couple of years, he became visiting professor at the University of Götheborg in Sweden, where he four years later became a Swedish citizen. The following year (1940) he became Professor in Götheborg. He died in 1945.

(New York), American Telephone and Telegraph Company, 1968. 8vo. Volume 47, September, No. 7, 1968 of "The Bell System Technical Journal". In the original printed blue wrappers. A bit of sunning to spine and previous owner's stamp to front wrapper, otherwise a very nice, fresh, and internally near mint, copy. Pp. 1143-1537. Illustrated throughout. First publication of Bell system's famous TD-3 issue. The TD-3 was the replacement of the highly successful TD-2 system.The TD-2 was the backbone of all transcontinental television broadcasting and long distance telephone traffic, before satellite transmission was made possible. By 1962 the TD-2 was carrying more than 80,000 miles of intercity television circuits and approximately 35,000,000 miles of telephone circuits, representing more than 90 per cent of all intercity video and 40 per cent of all long distance telephone circuits' mileage. It had, however, several shortcomings: It had maintenance problems, required a multi voltage power source and the noise performance were considered only marginally satisfactory. The TD-3 was to improve these shortcomings and prepare the network for increased capacity. 1. Hathaway, S.D.; Hensel, W.G.; Jordan, D.R.; Prime, R.C. TD-3 Microwave Radio Relay System. Pp. 1143-1188.2. Jensen, R.M.; Rowe, R.E.; Sherman, R.E. Microwave Transmitter and Receiver. Pp. 1189-1225.3. Fenderson, G.L.; Jansen, J.J.; Lee, S.H. Active IF Units for the Tranmitter and Receiver. Pp. 1227-1256.4. Abele, T.A.; Alberts, A.J.; Ren, C.L.; Tuchen, G.A. Schottky Barrier Receiver Modulator. Pp. 1257-1287 .5. Hamori, Andras; Penney, Paul L. Transmitter Modulator and Receiver Shift Modulator. Pp. 1289-1299.6. Abele, T.A.; Leonard, D.J.Microwave Generator. Pp. 1301-1322.7. Elder, H.E. Active Solid-State Devices. Pp. 1323-1377.8. Bradford, C.E. The Traveling-Wave Tube Amplifier for the Microwave Transmitter. Pp. 1379-1395.9. Drazy, E.J.; MacLean, R.C.; Sheehey, R.E. Networks. Pp. 1397-1422. 10. Barry, J.F.; Gammie, J.; Lentz, N.E.; Salvage, R.C. 3A FM Terminal Transmitter and Receiver. Pp. 1423-1458.11. Cooney, R.T.; Klisch, F.M.; Susen, C.P. Test Equipment. Pp. 1459-1485.12. Jewett, W.E.; Mottle, S. Power System. Pp. 1487-1509.13. Skrabal, R.J.; Word, J.A. Microwave Radio Equipment and Building Considerations. Pp. 1511-1530.

Kjøbenhavn, 1799-1801. 8vo. 2 smukke samt. hldrbd. m. rig rygforgyldn. Bd. m. enkelte "huller", ellers et nydeligt, velholdt og rent ekspl. på skrivepapir. M. alle deltitel- og titelblade. (2), 133, (1); (4) pp, pp. (135)-238; (10), 291, (1) pp.8vo. 2 beautiful cont. hcalfs w. richly gilt spines. Bdg.s w. a few "holes", otherwise a very nice and clean copy on good paper. With all half-titles and title-pages. (2), 133, (1); (4) pp, pp. (135)-238; (10), 291, (1) pp. Rare first Danish edition of the very scarce work by Garve, "Über Gesellschaften und Einsamkeit" ("On Company and Loneliness"). The Danish translation was already begun by Meden, before Garve had finished publishing the last part of his work in the original German, -it was originally published 1797-1800, and the Danish translation appeared 1799-1800!Though almost forgotten today, Charistian Garve (1742-98) was a German philosopher, who exercised great influence on the contemporary Enlightenment-philosophers. During the late period of the Enlightenment he actually counted as one of the three most famous philosophers, the other two being Moses Mendelssohn and Kant. He also counts as one of the pioneers of "Volkskunde", and he contributed to what we would now call "popular philosophy". He initially became famous through his many translations (e.g. of Cicero's "De oficiis", Adam Smith's "Wealth of Nations", Ferguson's "Institutes of Moral Philosophy"), and in his own philosophy he was deeply influenced by English and Scottish philosophy as well as by Stoic ethics.Peter Andreas Meden (1771-1831) was a Danish Priest, originally of Dutch descent. He was quite influential as a translator of German rationalistic works.

Edinburgh, Thomas Nelson & Sons, 1952 8vo. In contemporary red stiff cardboards. In "Mind", Vol. LXI. Fine and clean. Pp. 153-164. [Entire volume: VII, (1), 585, (7) pp.]. First edition of Max Black's seminal paper on The Identity of Indiscernibles. In this famous contribution to metaphysics Black presents an objection to Leibniz' Law by means of a hypothetical scenario in which he conceives two distinct spheres having exactly the same properties, thereby contradicting Leibniz' second principle in his formulation of "The Identity of Indescernibles". By virtue of there being two objects, albeit with identical properties, the existence of two objects, even in a void, denies their identicality."The Identity of Indiscernibles is a principle of analytic ontology first explicitly formulated by Wilhelm Gottfried Leibniz in his Discourse on Metaphysics, Section 9 (Loemker 1969: 308). It states that no two distinct things exactly resemble each other. This is often referred to as 'Leibniz's Law' and is typically understood to mean that no two objects have exactly the same properties. The Identity of Indiscernibles is of interest because it raises questions about the factors which individuate qualitatively identical objects. Recent work on the interpretation of quantum mechanics suggests that the principle fails in the quantum domain" (SEP).

Gotha, Julius Perthes, 1861. 4to. Contemp, hcalf. Gilt spine. A small stamp to titlepage. VIII,482 pp. and 16, partly folded, lithographed maps and plans. Internally clean. + Ergänzungshäfte. With importent expediton reports and original maps from Europe, Asia, Africa, Australia, Polynesia, Polar regions etc.

Nürnberg, Weigel und Schneider, 1782. Small 4to. Contemp. sprinkled paper-covers. Stamp on title-page. Stamped monogram of Frederik VI on inside frontcover. (4),28 pp. and 51 engraved plates, some folding. Clean and fine.

Vilhelm Priors Forlag, 1947. Uncut in the original illustrated wrappers. Extremities somewhat worn, but otherwise fine. A few leaves with a bit of thumb-soiling, otherwise internally very nice and clean. Illustrated in colours. First Danish edition of one of the most important literary works of the 20th century, the satirical-political masterpiece that so magnificently reflects the events leading up to the Russian Revolution and brilliantly caricatures Stalinism. As Orwell himself put it, with this work, he deliberately tried "to fuse political purpose and artistic purpose into one whole". (Orwell, "Why I Write"). "Animal Farm" brilliantly portrays not only the corruption of the revolution, but also how traits of human character themselves corrupt society. The greatest flaw of revolution is not the corrupt leadership on its own, but also the greed, indifference, ignorance, shortsightedness, wickedness, etc. that govern the individuals that make up the masses. The work was written between late 1943 and early 1944, when the wartime alliance with the Soviet Union was at its height and Stalin was held in highest esteem in Britain, among both the people and intelligentsia. Not surprisingly, it was initially rejected by both British and American publishers, and the publication of it was thus delayed. When it did appear (1945), it became a great commercial success, however, probably not least due to the soon to follow Cold War. The work is generally considered one of the best and most influential literary productions of the 20th century.

Leipzig, B. G. Teubner, 1906. 8vo. In the original printed wrappers, without backstrip. In "Mathematische Annalen, 62. Band., 3. Heft., 1906.". A fine and clean copy. Pp. 351-370. [Entire issue: Pp. 329-448.]. First printing of Hibert's important paper in which he addressed a number of topics in the Calculus of Variations and thereby extended the ideas given in his account of the 23rd problem. In contrast with Hilbert's other 22 problems, his 23rd is not so much a specific "problem" as an encouragement towards further development of the calculus of variations. His work in the present paper led to a modern definition of the field.

Dateret Lillehammer 12.2. 1927. "Hjertelig tak for Deres elskværdige Hilsen!/ Vi ber dem ogsaa huske den lille/ St. Torfinns/ menighed i Deres bønner!" Postkortet med fotografi af Hamar. Katolske St. Torfinn's Kapel på verso. Med den originale kuvert med maskinskrevet udskrift til "Rev. Sr. Sunniva O.S.B./ Priory "Regina Pacis"/, Schotenhof, Anvers,/ Belgique/ Belgien." Den øvre del af kuverten er skåret ef - hermed poststemplingen.

Kbh., 1829. Ubesk. i nyere marmoreret papbd. m. titel på forperm. Rent og pænt ekspl. Originaludgaven.

Berlin, Springer, 1931. 8vo. In contemporary halv cloth with gilt lettering to spine. In "Zeitschrift für Physik", Bd. 68, 1931. Entire volume offered. Stamp to front free end-paper and titlepage, otherwise fine and clean. Pp. 97-113. [Entire volume: VIII, 845 pp.]. First printing of Tamm and Schubin's important paper in which they showed that the external photoeffect is caused by the presence of a jump in potential on the border of the metal vacuum."In 1931 - 1933 Tamm studied the quantum theory of metals, specifically the external photoeffect in metals and the state levels of the electrons on the surface of the metal. His work with S. P. Shubin was the first to show that the external photoeffect is caused by the presence of a jump in potential on the border of the metal vacuum and is associated with the effect of surface absorption of light, while the optic absorption of light by the metal is associated with the volume effect."

Leipzig, B. G. Teubner, 1875. 8vo. Bound in recent full black cloth with gilt lettering to spine. In "Mathematische Annalen", Volume 8., 1875. Entire volume offered. Library label pasted on to pasted down front free end-paper. Small library stamp to lower part of title title page and verso of title page. Title page missing a small piece of paper to the right margin, not affecting text. Very fine and clean. Pp. 363-414. [Entire volume: IV, 576 pp.]. First printing of Paul du Bois-Reymond's important paper in which he anticipate Cantor's famous "diagonal argument". Although Cantor proved that the real numbers are uncountable one year earlier he did not find the much clearer diagonal argument until some years later."In 1875, he described dense sets under the title 'pantachisch,' from the Greek for 'everywhere.' He later claimed, against Georg Cantor, priority in their discovery. In his textbook, Hobson awarded the laurels to du BoisReymond. Although Cantor presented his first diagonal proof to the public in On an elementary question of set theory [Cantor 1891], Paul du Bois-Reymond had been there well before him, having published a plainly diagonal argument in an 1875 article on approximation by in?nitesimals. [P. du Bois-Reymond 1875] Arguably his greatest invention was the Infinitärcalcül or infinitary calculus, an original, nonCantorean account of infinite and infinitesimal sizes as first-classentities that represent not the extents of collections but the rates of growth of real-valued functions." (McCarty, David Hilbert and Paul du Bois-Reymond: Limits and Ideals).

Hagae-Comitis (Haag), Johannem à Velsen & Trajecti ad Rhenum (Utrecht), 1691. 4to. Contemp. full calf. Raised bands. Spine ends worn, titlelabel nearly gone..A nick in leather at lower compartment. Spine and covers somewhat worn. Engraved frontispiece. (14),822,110 pp. + Index. 12 engraved plates of portraits, 1 folded table and many textillustrations (coins). 2 old names removed from titlepage, no loss of letters. Internally clean. The second edition of the estimated Graevius-edition, which was first printed in 1672.A reprint of the popular first edition appeared in 1697, but before that this enlarged edition of 1691 had appeared. In 1703 the third edition appeared, and in 1708 another edition appeared under a changed title.Dibdin II:441, Graesse: 6:522

København, 1877. Originalt komponeret grønt helshirtbd. Helt guldsnit. En anelse slitage ved øvre kapitæl og hjørner, men Overodnet særdeles frisk og fin. Også indvendig nydelig og ren. Gammel tilskift på fribladet. Originaludgaven. "Du" på s. 211.

Amsterdam, Hulst van Keulen, 1844. 4to. Contemp. clothbacked boards. Stamp on title-page. VIII,(8),110 pp. + Errata-slip. Internally clean and fine. First edition.

(Otthiniæ (Odense), Christian Schröder, 1698). Folio (340 x 215 mm). In contemporary full calf with five raised bands. Small paper-label pasted on to top of spine. Title-page supplied from the 1709-edition. Title-page with tears and previous owner's names in contemporary hand, otherwise a nice and clean copy. (42), 688 pp. Wanting the frontispiece and the original title-page. First edition, published posthumously, of this monumental work on the history of Denmark up till 1448. It was printed in Odense by the request of Thomas Kingo. Thesaurus II, 374. Biblioteca Danica III, 14. Birkelund no. 70. Lauritz Nielsen, Den Danske Bog, p. 112.

Berlin, Julius Springer, 1927. 8vo. Entire volume 45 of "Zeitschrift für Physik" bound in a red-brown contemporary half cloth with gilt title to spine. Library stamp to title-page. Corners and lower capital bumped, hinges a bit weak. An overall fine and clean copy. Pp. 751-765; 766-775. [Entire volume: VII, (1), 910 pp.]. First publication of Jordan and Klein's influential paper (the first mentioned) which contributed to the close connection between quantum fields and quantum statistics, today known as Jordan-Klein matrices. "Born, Heisenberg, and Jordan had indicated, and Dirac had demonstrated, the close connection between quantum fields and quantum statistics. Second quantization guarantees that photons obey Bose-Einstein statistics. What about other particles which obey Bose-Einstein statistics? The year 1927 was not over before Jordan and Klein addressed this question [in the present paper]." (Pais, Inward bound. p. 338).Jordan and Klein found that "one can quantize just as well the non-relativistic Schroedinger equation. In honor of these contributions the matrices have been named Jordan-Klein matrices." (ibid. p. 339). The second paper, "Über Wellen und Korpuskeln in der Quantenmechanik", "contained several other formal and mathematical generalizations, but its main practical value is that, in the newly established theory of the 'quantized wave field', the fluctuations in the Bose case now satisfied all requirements following from Einstein's light-quantum treatment of 1924 and 1925." (Mehra, The historical development of quantum theory, 2000, p. 231.

Kiøbenhavn, Arntzen & Harkier, 1804. Lille8vo. Samt. hldrbd. Rygforgyldning og titelfelt i skind. Ryg noget slidt. Lettere brugsspor. Papirsetiket på ryg. Stempel på titelbladet og verso. (14),468 pp. + Anhang 38 pp. samt 8 store udfoldelige kobberstukne plancher. Tryky på skrivepapir. Indvendig ren. Første danske udgave, oversat efter hans tyske værk "Militatärisches Taschenbuch zum Gebrauch im Felde."

K., 1857 + 1870. Ét pænt samt. hldrbd. m. oph. bd., hvorpå blindtrykte meanderborte. Forgyldte streger på ryg. Ryg falmet. Indvendig helt ren. 2 originaludgaver. BFN 762 + 1006.

Leipzig, B. G. Teubner, 1877. 8vo. Bound in recent full black cloth with gilt lettering to spine. In "Mathematische Annalen", Volume 12., 1877. Entire volume offered. Library label pasted on to pasted down front free end-paper. Small library stamp to lower part of title title page and verso of title page. Title page missing a small piece of paper to the right margin, not affecting text. Very fine and clean. Pp. 503-60. [Entire volume: IV, 576 pp.]. Frist printing of Klein's paper on the icosahedron."A problem that greatly interested Klein was the solution of fifth-degree equations, for its treatment involved the simultaneous consideration of algebraic group theory, geometry, differential equations, and function theory. Hermite, Kronecker, and Brioschi had already employed transcendental methods in the solution of the general algebraic equation of the fifth degree. Klein succeeded in deriving the complete theory of this equation from a consideration of the icosahedron, one of the regular polyhedra known since antiquity. These bodies sometimes can be transformed into themselves through a finite group of rotations. The icosahedron in particular allows sixty such rotations into itself. If one circumscribes a sphere about a regular polyhedron and maps it onto a plane by stereographic projection, then to the group of rotations of the polyhedron into itself there corresponds a group of linear transformations of the plane into itself. Klein demonstrated that in this way all finite groups of linear transformations are obtained, if the so-called dihedral group is added. By a dihedron Klein meant a regular polygon with n sides, considered as rigid body of null volume." (DSB VII, p. 400).The icosahedron is a regular polyhedron with 20 identical equilateral triangular faces, 30 edges and 12 vertices. It is one of the five Platonic solids.The volume contain many other papers by contemporary mathematicians.