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Kbhvn., Andr. Fred. Høst, 1919. 4to. Orig. printed wrappers. pp. 287-384,(2) as offprint from Memoires de L'Academie Royale des Sciences et des Letteres de Danemark, and 4 plates. Small rubberstamp on title and frontwr. Light wear to lower backstrip, effecting lower left corner of frontwr. First edition of Kramer's doctorial thesis. Karmer was Niels Bohr's first assistent when Bohr's Institute opened in 1920, later he returned to Utrecht and became sucessor to Ehrenfest. - The frequency of spectral lines did not coincide with a kinetic frequency of electrons, but was only partly explained by Bohr's correspondence principle. Kramer developed here in this work the mathematical formalism required to unite these ideas, leading to an interpretation of the intensities of Stark Components.

Berlin, Julius Springer, 1932. Large8vo. Uncut unopened in the original printed wrappers. In "Mathematische Annalen", 106. band. 1932. Entire volume offered. Wear to spine, lacking upper part of spine. Otherwise fine. Pp. 161-238. [Entire volume: IV, 795 pp.]. First appearance of Alexandroff's important paper (which he worked on in 1930) on dimension theory. "The first half of 1930—the development of homological dimension theory, which built upon his spectral theory" (DSB).

Berlin, Julius Springer, 1923. 8vo. In contemporary half cloth with gilt lettering. In "Zeitschrift für Physik" Bd. 14, 1923. Entire issue offered. Stamp to front free end paper and title page, otherwise a fine and clean copy. Pp. 44-55. [Entire volume: IV, 414 pp.]. First printing of Born and Heisenberg's paper on Bohr's atomic model, being a part of Heisenberg's Habilitation, which he completed under Born in 1924 in Göttingen.Cassidy 1923a.

New York, American Telephone and Telegraph Company, 1934. 8vo. Original full blue cloth. The entire volume XIII, 1934 of The Bell System Technical Journal. Library stamp to free front end-paper. Binding tight and clean. Internally also very nice and clean. Pp. 464-515. [Entire volume: (8), 705 pp.]. First edition of this classic paper on the mathematics behind the raster scan; the rectangular pattern of image capture and reconstruction in television.The mathematical theory of image scanning was developed in detail using Fourier transform techniques in the present paper. "By the use of a two-dimensional Fourier analysis of the transmitted picture a theory of scanning is developed and the scanning system related to the signal used for the transmission. On the basis of this theory a number of conclusions can be drawn." (From the introduction to the present paper).

Paris, Bachelier, 1836. 8vo. Uniformly bound in two contemporary black half calf bindings with gilt lettering to spine. Ex-libris pasted on to pasted down front end-papers. Internally occassionally brownspotted. VIII, XXVIII, 358 pp.; (2), VII, (1), 568 pp.

Berlin u. Stettin, Friedrich Nicolai, 1798. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on top of spine. Stamps on title-page. VI,168 pp. and 3 large folded engraved plaes. Klügel is well-known for his contributions to non-euclidean geometry and his work on the paralell-axiom. - Poggendorff I, 1277.

Uppsala, Wahlström & C., 1848-54. 4to. Sewn as issued. Uncut. (2),16,(2),17-24,(2),25-32,(2),33-40,(2),41-48 pp. First edition of Ångström's early work on thermometrical phenomena.Ångström was one of the early formulators of the science of modern spectroscopy; he wrote extensively on terrestrial magnetism, the conduction of heat, and especially spectroscopy. He published a monumental map of the normal solar spectrum that expressed the length of light waves in units of one ten-millionth of a millimeter, a unit of length now known as the angstrom. He discovered that hydrogen is present in the sun's atmosphere, and he was the first to examine the spectrum of the aurora borealis.

Hafniæ, Schubothe,1831. 8vo. Bound with the original blue wrappers in a later half cloth binding. Brownspotted and scattered notes in pencil. 28,8 pp. The first edition of Rask's edition of Luqman's fables. Hjelmslev I, 184.

Kbhvn., 1824-31. 8vo. I 6 samtidige ensartede halvlæderbind med rygforg. Bind med slitage og titelblade med reperationer.

Berlin, G. Reimer, 1858. 4to. As extracted from "Journal für die reine und angewandte Mathematik, 55. Band, 1858"., without backstrip. Fine and clean. [Clebsch:] Pp. 335-355; [Steiner)] Pp. 356-378. First printing of these two important papers by Clebsch and Steiner."German mathematician whose work on algebraic geometry was considered the first and most fundamental work in that branch of mathematics. Clebsch also developed a brilliant interpretation of some of Georg Riemann's work on function theory and investigated some aspects of algebraic geometry using approaches that differed from convention, focusing on algebraic interpretations rather than geometrical ones. Clebsch also founded an important journal, Mathematische Annalen before his premature death at the age of 39." (Schlager, Science and Its Times, P. 267)

Rotterdam, Johannes Borstius, 1680. 4to. In contemporary full calf with four raised bands and richly gilt spine. Small paper-label pasted on to top of spine. Light wear to extremities. Front free end-paper with annotations in contemporary hand. Title-page with previous owner's name in contemporary hand. Waterstain to upper outer corner throughout, especially affecting last leaves. (8), 619, (5), 99, (5) pp.

Washington, Robert Armstrong (and A.O.P. Nicholson), 1853-54. Volume I bound in orig. full cloth, spine faded, skall tears on hinges, light wear to spine-ends. Volume II bound in contemp. full calf., titlelabels with gilt lettering. Spine-ends repaired. Rubbed. 414,IV pp. a. 15 (of 16) tinted lithographed plates. + X,(2),339 pp., 36 tinted lithographed plates and 2 folded maps (one map with a tear, repaired on verso). In volume I on front free endpaper a dedication "Captain Rothe/ from Lieu/tnt Maury" - Matthew Fontaine Maury ??

K., 1929-31. 4to. 4 orig.hldrbd. Pragtudgaven.

Berlin, Himburgischen Buchhandlung, 1803. Contemp. marbled boards. Titlelabel with gilt lettering on spine. A paperlabel pasted on upper part of spine. Stamps on title-page. VI,152 pp. and 9 large folded engraved plates. Faint scattered brownspots. Second edition. - Klaus Jordan, 1921.

London: Parker, Son, and Bourn, 1861. 8vo. In publisher's original embossed cloth with gilt lettering to spine. Light wear and soiling to extremities. Hinges a bit weak. Ex-libris and previous owner's name to pasted down front end-paper. Underlignings in pencil throughout. (VIII, 347, (5) pp. Second edition.

New York, American Telephone and Telegraph Company, 1929. 8vo. Original full green cloth. Volume VIII, 1929 of The Bell System Technical Journal. Library stamp to front free end-paper and title page. Minor bumping to extremities. A nice and clean copy. Pp. 217-224. [Entire volume: (8), 861 pp.]. First edition of Davisson's paper on electrons and quanta. Together with George Paget Thomson he won the Nobel Prize in Physics in 1937 for his discovery of electron diffraction."The experiments by the author and L. H. Germer, by G. P. Thomson and by others from which the wave properties of electrons are adduced are briefly described. The agreement between the results of these experiments and the prediction of L. de Broglie is pointed out. The wave and corpuscular properties of electrons are compared with the similar properties of light quanta."(From the introduction to the present paper).Other papers of interest is contained in the present volume:1. Osborne, H.S. The Principles of Electric Circuits Applied to Communication. Pp. 3-20.2. Frederick, Halsey A. Recent Advances in Wax Recording. Pp. 159-172.3. Elmen, G.W. Magnetic Alloys of Iron, Nickel, and Cobalt. Pp. 435-465.4. Davisson, C.J.; Germer, L.H. A Test for Polarization of Electron Waves by Reflection. Pp. 466-481. 5. Martin, W.H.; Gray, C.H.G. Master Reference System for Telephone Transmission. Pp. 536-5596. Germer, L.H. An Application of Electron Diffraction to the Study of Gas Adsorption. Pp. 591-6047. Darrow, Karl K. Statistical Theories of Matter, Radiation and Electricity. Pp. 672-748. 8. Fletcher, H.; Steinberg, J.C. Articulation Testing Methods. Pp. 806-854.

Leipzig, B. G. Teubner, 1895. 8vo. In the original printed wrappers, no backstrip. In "Mathematische Annalen. Begründet durch Alfred Clebsch and Carl Neumann. 46. Band. 2. Heft." Entire issue offered. Internally very fine and clean. Pp. 273-285. [Entire volume: Pp. 161-320]. First printing of Hurwitz's important paper in which he presented the "Hurwitz determinant" for the first time. They are used to give a criterion for all roots of a polynomial to have negative real part.

(Kjøbenhavn), 1876. 8vo. Bound with the original blank wrappers in recent black full cloth. With author's presentation to front free end-paper: "Hr. Seminarelev / H. Mortensen / fra Forf.") (i. e. English: "Student / H. Mortensen / from the author"). Front wrapper with annotations. Ocassional brownspotting throughout. Offprint from "Botanisk tidsskrift", 3 række, 1 bind. (1), 84-110 pp. Presentation copy of this offprint of Warming’s early work. In 1877, he began publishing the present work in the Botanical Journal. As the title suggests, he presented not only morphological observations but also details on the life conditions of various, mostly Danish, plants, including their development from seed, shoot structure, rhizome formation, and flower biology. He planned to one day compile these studies into a complete natural history of native flowering plants, but never accomplished it. (See Kolderup-Rosenvinge, Eug. Warming). Johannes Eugenius Warming (1841–1924), commonly known as Eugen Warming, was a pioneering Danish botanist widely recognized as one of the founding figures of modern ecology. He authored the first textbook on plant ecology in 1895, introduced the first university course in the subject, and helped define the scope and content of ecological science. In 1975, ecologist R. J. Goodland asserted: “If one individual can be singled out to be honoured as the founder of ecology, Warming should gain precedence” ("The Tropical Origin of Ecology: Eugen Warming's Jubilee"). Warming wrote a number of textbooks on botany, plant geography and ecology, which were translated to several languages and were immensely influential at their time and later. Most important were “Plantesamfund and Haandbog i den systematiske Botanik”.

[Berlin, Stockholm, Paris, Beijer, 1891 - 1892]. 4to. Without wrappers as extracted from "Acta Mathematica. Hrdg. von G. Mittag-Leffler.", Bd. 15 and 16. Fine and clean. Pp. 53-63; Pp. 217-295. First printing of Koch's two paper which together constitute his doctoral thesis. Von Koch is known principally for his work in the theory of infinitely many linear equations and the study of the matrices derived from such infinite systems. He also did work in differential equations and in the theory of numbers. (DSB).

Bln., Henschel Verlag, 1961. Orig-slipcase in cloth.

Montreal, John Lovell, 1871. Orig. full cloth, gilt back. Back lightly faded. 506 pp. Clean and fine. First edition.

Carlsruhe, Müller, 1819. 12mo. Orig. engraved boards. Spineends strenghtened with tape. Stamp on title-page. (6),294 pp., 3 folded lithographed plates + (4),52 pp., 20 folded lithographed plates. A few scattered brownspots.

Schleswig, Königl. Taubstammen-Institut, 1824. Bound in exquisite full red morocco (presentation copy ?). Richly gilt spine with gilt lettering. Gilt borders on covers. All edges gilt. Edges of covers gilt. Stamp on title-page.XII,438,(2) pp. On good paper, clean and fine.

Leipzig, (R.Weigel), 1836. Orig. printed wrappers. An engraving by Holbein on titlepage (Die Herzoginn). A few marginal brownspots. Unopened. IV,127 pp.

Lpz., Hartknoch, 1800. Cont.boards. XXIV, 125 pp.