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Yverdon, 1779. Bound in one very nice contemp. hcalf. raised bands, profusely gilt spine. Tome-and titlelabels with gilt lettering. Stamp on title-page. X,348;212 pp., 8 folded engraved plates. On good paper, clean and fine.

Amsterdam, Wetstein, 1721. 8vo. Uniformly bound in two contemporary full calf bindings with five raised bands and richly gilt spines. Small paper-label pasted on to top of spine. Light miscolouring and a few small wormholes to extremities. previous owner's name (Peter Otto Rosenørn - owner of Hersomgård) in contemporary hand to front free end-paper. A few small worm-tracts in lower margin in vol. 2, not affecting text. (12), 624 pp. + 2 frontispieces; (14), 706 pp. + frontispiece. A nice set of the fifth edition of this intriguing collection of beautifully written French letters on topics such as love, gallantry, congratulations, and many other subjects. Pierre Richelet (1626 – 1698) was a French grammarian and lexicographer and the editor of the first dictionary of the French language.

Leipsick, Léopold Michelsen, 1842. 8vo. Bound in a very nice contemporary full morrocco binding with richly gilt spine with five compartments. Elaborate gilt borders to boards and inner gilt dentelles. Sunning to spine and top of back boards. A few brown spots to half title and title, otherwise a beautiful and clean copy with broad margins. XII, 372 pp. First edition.Sabin 42505.

London, Chapman and Hall, 1847. Untrimmed in 2 orig. full blindstamped cloth. Spine ends a bit frayed, a few minor nicks. Gilt lettering on spines. Stamp on foot of title-pages. XIV,429;VIII,315 pp., 5 folded maps, 9 tinted lithographed plates (incl. 2 frontispieces), 1 folded table. Some scattered brownspots to plates and maps. Text clean.

Braunschweig, Friedrich Vieweg und Sohn, 1909. 8vo. Bound in contemporary half calf with gilt lettering to spine. In "Verhandlungen der Deutsche Physikalische Gesellschaft", 11 Jahrgang, 1909. (Reprinted same year in "Physikalische Zeitschrift 10"). Bound with "Berichte der Deutschen Physikalischen Gesellschaft", 7 Jahrgang, 1909. Capitals and hindges with wear. Internally very fine and clean. Pp. 482-500. [Entire volume: (2), 749, (3), VII, 450 pp.]. First printing of Einstein's famous lecture in which he anticipated the discovery of black-body radiation and famously stated that: "the next phase in the development of theoretical physics will bring us a theory of light, which may be regarded as a sort of fusion of the undulatory and emission theories of light" (The present paper, Pp. 482-3). He furthermore stated that the electromagnetic fields that constitute light will no longer appear to be states of a hypothetical medium, but rather independent entities emitted by the sources of light, exactly as in the Newtonian emission theory of light. The paper was delivered as a lecture before the 81st assembly of the 'Gesellschaft Deutscher Naturforscher' in Salzburg on 21st September 1909.The occasion was important for Einstein since he for years had been working in scientific exile. Among those who attended Einstein's lecture were some of the world's foremost physicists such as; Max von Laue, Max Born, Arnold Sommerfeld. All published papers of their own in the present volume. Weil No. 30.

London, Royal Society, 1984. Royal8vo. Full buckram, gilt lettering to spine.In: "Proceedings of the Royal Society of London", Series A, vol. 392. IV,478 pp. (Entire volume offered). Berry's paper: pp. 45-57. Clean and fine. First printing of the paper in which Berry describes his discovery of the "Berry phase", a unifying concept in quantum mechanics."In 1983, Berry made the surprising discovery that a quantum system adiabatically transported round a closed circuit in the space of external parameters acquires, besides the familiar dynamical phase, a non-integrable phase depending only on the geometry of the circuit. This Berry phase, which had been overlooked for more than half a century, provides us a very deep insight on the geometric structure of quantum mechanics and gives rise to various observable effects. The concept of the Berry phase has now become a central unifying concept in quantum mechanics, with applications in fields ranging from chemistry to condensed matter physics. In particular, the Berry phase plays an important role in modern magnetism, an allows to reach a deeper understanding of a broad range of phenomena such as the spin-orbit coupling, the Aharonov-Bohm effect, the quantum Hall effect, the anomalous Hall effect, the magnon dynamics, the tunneling of magnetization in molecular magnets, etc. Further, in the light of the Berry phase, a number of new phenomena can be predicted in ferromagnets with a textured magnetization or in semiconductors with spin-orbit coupling." (Patrick Bruno).

Amsterdam, Pierre & Mortier, 1728. 8vo. In contemporary vellum. Light wear to extremities and internally a few leaves with miscolouring. An overall nice copy. (8), 187, (3), 180 pp. + 2 frontispieces. Second edition of Ramsay's work on an imaginary tour of the ancient world undertaken by Cyrus, founder of the Persian Empire. He meets famous figures such as Pythagoras and Zoroaster who give him lessons on how a wise leader should act. The work because very popular and was published in numerous editions."Les Voyages de Cyrus was first published in 1727 and became a bestseller in France and then in Britain after being translated into English by Nathaniel Hooke, nephew of the Jacobite agent of the same name. Ramsay’s work imagines the travels of Cyrus the Great, the 6th-century BC founder of the first Persian Empire. Cyrus’s early life had been fictionalised by Xenophon of Athens as a way to promote his own political and moral philosophy and Ramsay uses this device to drive his own narrative. The work is also strongly influenced by Archbishop Fénelon’s Les aventures de Télémaque, fils d’Ulysse (The adventures of Telemachus, son of Ulysses). Though Fénelon’s work appears to be set in the time of Homer’s heroes it was immediately seen as a scathing attack on the autocratic rule of Louis XIV and the self-indulgent nature of aristocratic society. Ramsay also draws on the ancient Greek historian Herodotus, notably for a grisly event towards the end of Book 1." (National Library of Scotland).

No place, no printer, 1760. 8vo. I contemporary full calf with five raised bands and gilt lettering to spine. Small paper-label pasted on to top of spine. Light miscolouring to extremities and head of spine chipped. Some scattered brownspots and occassional mild toning. (12), 268 pp. + 18 plates. Uncommon first German (only?) translation, beautifully illustrated, of this work on military strategy in which Folard’s detailed commentaries on Polybius was presented into an accessible summary intended for military officers. Jean-Charles de Folard was a French military officer and theorist known for his work on the use of infantry in battle, particularly his advocacy for the column formation over the line formation, which was the dominant military strategy at the time.

Frankfurt & Leipzig, 1777-82 (2. Theil: Nürnberg, Christ. Weigel, 1782). Small 8vo. Bound in 2 nearly uniform cont. hcalf. Titlelabels gone. Backs slightly rubbed. 2 engraved titlevignettes. XXVIII,(4),384 pp. + Zusätze und Beylagen 96,(20) pp. and 2 folded genealogical tables. 2. Theil: 192 pp. and 1 large folded engraved view: Reichs=Marckt Burtenbach (20x42 cm.). First edition. Very uncommon with part 2 printed in Nürnberg 5 years later. Withbound 2. Theil: Anonymous. Briefe über die Liebe zum Vaterlande oder Briefwechsel zwischen Anapistemon und Philopatros. Aus dem Französischen. Berlin, Decker, 1779. 84 pp.

New York, American Telephone and Telegraph Company, 1963. 8vo. 3 original full green cloth. Volume 42, 1963-1,2,3 of "The Bell System Technical Journal". Library stamp to free front end-paper. Minor bumping to extremities. A nice, clean, uniform set. 20, 738 pp.+ (2), 739-1940 pp. + 1941-2974 pp. First publication of the first description of the world's first television satellite. Telstar I made a tremendous impact on the world by transmitting transatlantic live television. "Telstar captured the popular imagination in a way that it is hard to believe any satellite, especially a communication satellite, could do today. According to AT&T, more than half the population of the UK watched its first transatlantic transmission, a remarkable percentage given that far fewer people than today owned television sets." (Gavaghan, Something New under the Sun, p. 188)According to the US Space Objects Registry, Telstar 1 and 2 were still in orbit as of May 2010. The Telstar-satellites represent the true beginning of satellite communication.Telstar 1 was launched on July 10th 1962 and was the world's first active repeater satellite, the primary function of which was transmission of voice, black/white and colour television, fascimilie, and high- and low-speed data. The Telstar-project had five overall objectives; to demonstrate broadband transmission, test operational communication satellite reliability, obtain operational experience with ground terminals and provide space radiation measurement.Telstar 1 was a medium-altitude satellite with an elliptic orbit which was completed once every 2 hours and 37 minutes. Due to Telstar's non-geosynchronous orbit, its availability for transatlantic signals was limited to 20 minutes in each orbit that passed over the Atlantic Ocean. The Telstar 2 was almost identical with Telstar 1 but had a higher orbit to reduce exposure to the damaging effect of the radiation belt. The Chief of NASA's Communications Satellite Programs wrote in 1966: "Although not the first communications satellite, Telstar is the best known of all and is probably considered by most observers to have ushered in the era of satellite communications. This impression was a result of the tremendous impact upon the public by the first transmission of live television across the Atlantic Ocean. Telstar I was launched on July 10, 1962, and on that same day live television pictures originating in the United States were received in France." (Jaffe, pg. 107)"On the whole, Telstar made a tremendous impact in the nation by transmitting transatlantic live television, which demonstrated the possibilities for commercial satellite television and other services." (Delbert. Communication via satellite, 83 p). The Telstar-satellites were not the first launched satellites, but they were the first to demonstrate the possibilities of satellites and to present them to a broader audience. The three volumes offered contain a wide variety of articles related to the Telstar satellites from the technical design of the satellite to transmission test and evaluation to spacecraft test.Issue 1:1. Beach, C.D.; Trecker, J.M.. A Method for Predicting Interchannel Modulation due to Multipath Propagation in FM and PM Tropospheric Radio Systems. Pp. 1-36.2. Bodtmann, W.F.; Ruthroff, C.L. A Wideband Transistor IF Amplifier for Space and Terrestrial Repeaters Using Grounded-Base Transformer-Coupled Stages. Pp. 37-54.3. Coyne, J.C. Monitoring the Percussive Welding Process for Attaching Wires to Terminals. Pp. 55-78.4. MacWilliams, Jessie. A Theorem on the Distribution of Weights in a Systematic Code. Pp. 79-94.5. Peck, D.S.; Blair, R.R.; Brown, W.L.; Smits, F.M. Surface Effects of Radiation on Transistors. Pp. 95-129.6. Graff, H.J.; Peacock, J.M.; Zalmans, J.J. Development of Solderless Wire Connector for Splicing Multipair Cable. Pp. 131-153.7. Gordon, E.I.; Rigden, J.D. The Fabry-Perot Electrooptic Modulator. Pp. 155-179.8. Pfahnl, Arnold. Properties of Fast-Decay Cathode-Ray Tube Phosphors. Pp. 181-201.Issue 2:9. Hallenbeck, F.J.; Mahoney, J.J. Jr. The New L Multiplex - System Description and Design Objectives. Pp. 207-221.10. Graham, R.S.; Adams, W.E.; Powers, R.E.; Bies, F.R. New Group and Supergroup Terminals for L Multiplex. Pp. 223-278.11. Albert, W.G.; Evans, J.B. Jr; Ginty, J.J.; Harley, J.B. Carrier Supplies for L-Type Multiplex. Pp. 279-317.12. Clark, O.P.; Drazy, E.J.; Weller, D.C. A Phase-Locked Primary Frequency Supply for the L Multiplex. Pp. 319-340.13. Andrews, E.G. Pp. Telephone Switching and the Early Bell Laboratories Computers. Pp. 341-353.14. Sandberg, I.W. On the Theory of Linear Multi-Loop Feedback Systems. Pp. 355-382.15. Descloux, A. On Overflow Processes of Trunk Groups with Poisson Inputs and Exponential Service Times. Pp. 383-397.16. Rosenzweig, W.; Gummel, H.K.; Smits, F.M. Solar Cell Degradation under 1-Mev Electron Bombardment. Pp. 399-414.17. Marcuse, Dietrich. A Further Discussion of Stimulated Emission of Bremsstrahlung. Pp. 415-430.18. Cravis, H.; Crater, T.V. Pp. Engineering of T1 Carrier System Repeatered Lines. Pp. 431-486.19. Takacs, L. Delay Distributions for One Line with Poisson Input, General Holding Times, and Various Orders of Service. Pp. 487-503.20. Takacs, L. A Single-Server Queue with Feedback. Pp. 505-519.Issue 3:21. Lindner, R. Semiconductor Surface Varactor. Pp. 803-831.22. Paull, M.C. Reswitching of Connection Networks. Pp. 833-855.23. Sandberg, I.W. The Realizability of Multiport Structures Obtained by Imbedding a Tunnel Diode in a Lossless Reciprocal Network. Pp. 857-876.24. Rado, T. On Non-Computable Functions. Pp. 877-884.25. Schepis, A.J. On the Theory of Shrink Fits with Application to Waveguide Pressure Seals. Pp. 885-907.26. Frisch, H.L.; Gordon, S.B.; Vyssotsky, V.A.; Hammersley, J.M. Monte Carlo Solution of Bond Percolation Processes in Various Crystal Lattices. Pp. 909-920.27. Curtis, Harold E. Interference between Satellite Communication Systems and Common Carrier Surface Systems. Pp. 921-943.28. Gucker, George B. Long-Term Frequency Stability for a Reflex Klystron without the Use of External Cavities. Pp. 945-958.29. Flanagan, James L.Models for Approximating Basilar Membrane Displacement - Part II. Effects of Middle-Ear Transmission and Some Relations between Subjective and Physiological Behavior. Pp. 959-1009.30. Rowe, H.E. Approximate Solutions for the Coupled Line Equations. Pp. 1011-1029.31. Rowe, H.E.; Warters, W.D. Transmission in Multimode Waveguide with Random Imperfections. Pp. 1031-1170.Issue 4:32. Tsiang, S.H.; Ulrich, W. Automatic Trouble Diagnosis of Complex Logic Circuits. Pp. 1177-1200.33. Benes, V.E. Heuristic Remarks and Mathematical Problems Regarding the Theory of Connecting Systems. Pp. 1201-1247.34. Benes, V.E. Algebraic And Topological Properties of Connecting Networks. Pp. 1249-1274.35. Meadows, H.E.Solution of Systems of Linear Ordinary Differential Equations with Periodic Coefficients. Pp. 1275-1294.36. Landau, H.J.; Pollak, H.O. Prolate Spheroidal Wave Functions, Fourier Analysis and Uncertainty -- III: The Dimension of the Space of Essentially Time- and Band-Limited Signals. Pp. 1295-1336.37. Scheinman, A.H. A Method for Simplifying Boolean Functions. Pp. 1337-1346.38. Boyd, G.D.; Kogelnik, H. Generalized Confocal Resonator Theory. Pp. 1347-1369.39. Geusic, J.E.; Scovil, H.E.D. A Unidirectional Traveling-Wave Optical Maser. Pp. 1371-1397. 40. Morris, Robert. Further Analysis of Errors Reported in "Capabilities of the Telephone Network for Data Transmission". Pp. 1399-1414.41. Otterman, Joseph. Grade of Service of Direct Traffic Mixed with Store-and-Forward Traffic. Pp. 1415-1437.42. Fraser, J.M.; Bullock, D.B.; Long, N.G. Over-All Characteristics of a TASI System. Pp. 1439-1454.43. Miedema, H.; Schachtman, M.G. TASI Quality - Effect of Speech Detectors and Interpolation. Pp. 1455-1473.Issue 5:44. Nelson, W.L. Phase-Lock Loop Design for Coherent Angle-Error Detection in the Telstar Satellite Tracking System. Pp. 1941-1975.45. Elliott, E.O. Estimates of Error Rates for Codes on Burst-Noise Channels. Pp. 1977-1997.46. Mc Adoo, Kathryn L. Speech Volumes on Bell System Message Circuits -- 1960 Survey. Pp. 1999-2012.47. Cutler, C.C.; Kompfner, R.; Tillotson, L.C. A Self-Steering Array Repeater. Pp. 2013-2032.48. Sandberg, I.W. On the Properties of Some Systems that Distort Signals -- I. Pp. 2033-2046.49. Ohm, E.A.; Snell, W.W. A Radiometer for a Space Communications Receiver. Pp. 2047-2080.50. Brown, W.S. The ALPAK System for Nonnumerical Algebra on a Digital Computer --- I: Polynomials in Several Variables and Truncated Power Series with Polynomial Coefficients. Pp. 2081-2119.51. Musa, J.D.Discrete Smoothing Filters for Correlated Noise. Pp. 2121-2151.52. Evens, M.J.; Myers, G.H.; Timko, J.W. Command Guidance of Telstar Launch Vehicle. Pp. 2153-2168. 53. Yu, E.Y. Spin Decay, Spin-Precession Damping, and Spin-Axis Drift of the Telstar Satellite. Pp. 2169-2193.54. Paul, B.; West, J.W.; Yu, E.Y. A Passive Gravitational Attitude Control System for Satellites. Pp. 2195-2238.55. Fletcher, H.J. ; Rongved, L.; Yu, E.Y. Pp. Dynamics Analysis of a Two-Body Gravitationally Oriented Satellite. Pp. 2239-2266.56. Rice, S.O.Innage and Outage Intervals in Transmission Systems Composed of Links. Pp. 2267-2283.57. Dragone, C.; Hogg, D.C.Wide-Angle Radiation Due to Rough Phase Fronts. Pp. 2285-2296.58. Bennett, W.R.; Rice, S.O.Spectral Density and Autocorrelation Functions Associated with Binary Frequency-Shift Keying. Pp. 2355-2385.59. Bennett, W.R.; Salz, J.Binary Data Transmission by FM over a Real Channel. Pp. 2387-2426.60. Lucky, R.W.A Functional Analysis Relating Delay Variation and Intersymbol Interference in Data Transmission. Pp. 2427-2483.Issue 6:61. Haynie, G.D.; Rosenfeld, P.E. An Automated 20-20,000-cps Transmission Measuring Set for Laboratory Use. Pp. 2501-2531.62. Sandberg, I.W.Signal Distortion in Nonlinear Feedback Systems. Pp. 2533-2550.63. Manley, J.M. A Three-Conductor Elementary Clogston Coaxial Transmission Line --- Calculation, Fabrication and Experiment. Pp. 2551-2574.64. Darlington, Sidney. Linear Time-Varying Circuits --- Matrix Manipulations, Power Relations, and Some Bounds on Stability. Pp. 2575-2608. 65. Li, Tingye. Mode Selection in an Aperture-Limited Concentric Maser Interferometer. Pp. 2609-2620.66. DiDomenico, M. Jr.; Anderson, L.K. Broadband Electro-Optic Traveling-Wave Light Modulators. Pp. 2621-2678.67. Byrne, C.J.; Karafin, B.J.; Robinson, D.B. Jr. Systematic Jitter in a Chain of Digital Regenerators. Pp. 2679-2714.68. Curtis, Harold E. Satellite System Interference Tests at Andover, Maine. Pp. 2715-2739.69. Miller, S.E.The Nature of and System Inferences of Delay Distortion Due to Mode Conversion in Multimode Transmission Systems. Pp. 2741-2760.70. Young, D.T.Model for Relating Coupled Power Equations to Coupled Amplitude Equations. Pp. 2761-2764. 71. Enloe, L.H.Interchannel Interference in FM Systems Produced by Continuous Random Mode Conversion in Circular Electric Waveguide. Pp. 2765-2786.72. Young, D.T.Effect of Differential Loss on Approximate Solutions to the Coupled Line Equations. Pp. 2787-2793. 73. Benes, V.E.Markov Processes Representing Traffic in Connecting Networks. Pp. 2795-2837.74. Borenstein, D.P. Spectral Characteristics of Digit-Stimulating Speech Sounds. Pp. 2839-2847.75. Bullington, K.. Reflections from an Exponential Atmosphere. Pp. 2849-2867. 76. Emling, J.W.; Mitchell, D.The Effects of Time Delay and Echoes on Telephone Conversations. Pp. 2869-2891.77. Brady, P.T.; Helder, G.K.. Pp. Echo Suppressor Design in Telepone Communications. Pp. 2893-2917.78. Riesz, R.R.; Klemmer, E.T. Subjective Evaluation of Delay and Echo Suppressors in Telephone Communicaions. Pp. 2919-2941.79. Hill, D.W. Calculation of the Spin-Axis Orientation of the TELSTAR Satellites from Optical Data. Pp. 2943-2960.

London, Printed by Taylor and Francis - Published by the Author, (1862-) 73. Folio. Papersize 54,5x37 cm. Lithographed and fully handcoloured. 2 birds seen, female and male in natural habitat, foliage. J. Gould & H.C. Richter, del. et lith. - Walter, Imp. Fine and clean. The plate is accompanied with the original textleaf. (2) pp. This is an original plate from Goulds great work "The Birds of Great Britain", issued between 1862 and 1873. The plates in this work were executed by Gould himself, and a few by J. Wolf, H.C. Richer and Hart. Together with Audubon's plates, the Gould-plates are considered the best bird-art ever produced, AND THE PLATES IN HIS "BIRDS OF GREAT BRITAIN" ARE THE PEAK OF GOULD'S ARTISTIC LIFE. In the foreword Gould stresses the difference from his "Birds of Europe" in the treatment of the illustrations, the inclusion here of the figures of the baby birds and nests, and he comments "Many of the public are quite unaware how the colouring of these large plates is accomplished; and not a few believe that they are produced by some mechanical process or by chromo-lithography. This, however is not the case; every sky with its varied tints and every feather of each bird were coloured by hand; and when it is considered that nearly two hundred and eighty thousand illustrations in the present work have been so treated, it will most likely cause some astonishment to those who give the subject a thought.". Elsewhere he remarked upon employing "almost all colourists in London." - Wood p. 364. - Nissen No. 372. - Sitwell 102. - Zimmer pp. 261-62. - Not in Jean Anker.

Rotterdam, Jean Hofhout, 1728. 8vo. Bound in a nice contemporary Cambridge-style mirror binding with five raised bands and richly gilt spine. Gilt super ex-libris to front board. All edges marbled. Traces after a small paper-label to upper part of spine. Boards with a few holes in the leather. Otherwise a nice and clean copy. (58), 372 pp. + frontispiece. A nice copy of this eighth revised and corrected edition of this famous collection of sayings translated from Spanish from the original edition of 1647 by Amelot de la Houssaie, secretary of the French Embassy in Venice.

New York, Harper & Brothers, 1887 8vo. In the original full cloth binding with gilt lettering to spine. Top and bottom of spine with wear and light overall soiling. Internally fine and clean. First edition of Dewey's landmark work - one of the earliest American original contributions to psychology - in which he reformulated psychology focusing more strongly on the social environment and on the activity of mind and behavior than the psychophysics-inspired physiological psychology. This work "attempt to unite into a single system the neo-Hegelianism of Morris and the experimental psychology of Hall, or, as Dewey put it, to identify psychology with "philosophic method." During these years he moved toward a more liberal religious stance as well as toward what he would later term "instrumentalism," the view that ideas are tools for resolving and reconstructing problematic situations." (American national biography

Kjøbenhavn, Hoffenberg, jespersen & Traps Etabl., 1870-78. Indbundet i 3 samtidige hldrbd. med rygforgyldning. Rygge med lidt slidspor. Her og der med brunpletter. XIII,346,602;600;VIII,556,(1) pp.

(No place, nor printer, 1723. 8vo. Uniformly bound in three contemporary full calf bindings with gilt ruled fillets to boards. Considerable wear to extremities, boards with numerous scratches. Hinges a bit weak. Ex-libris (Carl Henrik Koch) pasted on to pasted down front end-paper. With light marginal browning throughout. IV, (4), 364 pp. + frontispiece; 443 pp.; (4), 391, (54) pp. Third edition of Shaftesbury’s collection of essays exploring moral philosophy emphasizing natural human affection as the basis for ethical principles as opposed to moral philosophy in a Christian framework. Notable for its new moral approach, the book influenced David Hume, Immanuel Kant, and later philosophers. It was one of the most reprinted books of the 18th century second only to Locke’s Second Treatise. Anthony Ashley Cooper, 1st earl of Shaftesbury (1621 - 1683) was an English politician, a member of the Council of State during the Commonwealth, and a member of Charles II’s “Cabinet Council” and lord chancellor (1672–73).

London, Macmillian and Co, 1927. Royal8vo. Bound in contemporary half cloth with whilte title paper-label to spine. In "Nature", vol. 119, 1927, entire volume offered. Stamp to front free end-paper and title-pages of each issue.Light wear to extremieies, otherwise fine. Pp. 558-560. [Entire volume: LIX, (1), 948, 100]. First edition of this seminal and highly influential paper on electron diffraction. Today the paper is regarded as one of the most important in the entire journal of Nature, and it led directly to Davisson receiving the Nobel Prize in physics in 1937. It advanced understanding of physics at the quantum level and led to inventions such as the electron microscope. Davisson and Germer's confirmation of the de Broglie hypothesis if today known as the Davisson-Germer experiment."Davisson's investigations on the scattering of electrons entered a new phase when, in April 1925, his taget was heavily oxidized by an accidental explosion of a liquid-air bottle. He cleaned the target by prolonged heating and then found the distribution-inangle of the secondary electrons completely changed, new showing a strong dependence on crystal direction. Prior to the accident the target had consisted of many tiny crystals, but heating converted it to several large crystals. Davisson and L. H. Germer, who had replaced Kunsman before the accident, at once began bombarding targets of single crystals. [...] When Davisson returned from England, he and Germer began a systematic research for some sort of interference phenomenon, and in January 1927 they observed electron beams resulting from diffraction by a single crystal of nickle. The results were in good agreement with de Broglie's prediction. For his confirmation of electron waves Davisson shared the Nobel Prize in physics in 1937 with G. P. Thomson." (DSB, III, 597b-598a).

Berlin, Julius Springer, 1932. 8vo. Bound in a contemporary half cloth. In "Zeitschrift für Physik". Library stamp to free front end-paper and title-page. A nice and clean copy. Pp. 318-339. [Entire volume: VII, 857 pp.]. First printing of Ruska and Knoll's seminal paper in which the first description of an electron microscope appears. This allowed researchers for the first time to view objects as small as the diameter of an atom. Not only did the discovery have profound influence on physics, it also revolutionized biological research, as it now became possible to distinguish individual molecules. Ruska received the Nobel Prize in physics in 1986 for his discovery regarding the electron microscope.In 1933 the theoretical description presented in the present paper led Ruska to build a two-stage electron microscope with a resolution exceeding that of the optical microscope. The technique behind is largely built upon de Broglie's revolutionary theory regarding the wavelength of electrons. The volume contains many important contributions to 20th century physics, among others: Heisenberg, W. Über den Bau der Atomkerne. II. Pp. 156-64: This is the second paper in a series of three which presents Heisenberg's neutron-proton model. Shortly after Chadwick discoverd the neutron in 1932, Heisenberg developed a theory suggesting that atomic nuclei are composed of protons and neutrons, this introduced the concept of the nuclear exchange force and isotopic spin. (DSB 17: p.398).

Kiøbenhavn, Godiches Efterleverske, 1770. 8vo. In contemporary full calf with five raised bands and blindstamped ornamentation to spine. Light wear and miscolouring to extremities. Small paper-label pasted on to top of spine. Internally nice and clean. (10), 395, (1) pp. + frontispiece.

Kjøbenhavn, C. A. Reitzels, 1854-1868. 8vo. I 14 smukke samtidige uniforme brune halvlæderbind med rig tidstypisk rygforgyldning. Enkelte bind indvendigt en smule brunplettet. Et pænt set. Førstetrykket af "Samlede Skrifter". Selvbiografien "Mit Livs Eventyr" udkom første gang i dette tryk(BFN 745), ligeledes gjorde "At være eller ikke være" (BFN 762) og "I Spanien" (BFN 869).

Stuttgart und Tübingen, 1815. 8vo. Cont. marbled cardboardbinding w. handwritten paper title to spine. A bit of wear to extremities. Internally some brownspotting. 117, (1, -Nachschrift), (6, Druckfehler) pp. First edition of Schelling's "The Deities of Samothrace", which constitutes his earliest printed contribution to the mythic tradition. Schelling accepts Hegel's conception of the absolute as that which is finite to the extent that it becomes nothing but negative relation to itself, and as such, for Schelling, this becomes a way of constructing a negative system of philosophy. This system explains the logic of change within a world that is subject to explanation, but it cannot explain why there is a world that is changing in the first place. Thus, Schelling sets out to explain the historical and ontological actuality of the world, and it is this attempt that leads him to his philosophical mythology and theology. For Schelling, the treatment of mythology and religion becomes the positive complement to the negative speculative philosophy. The work was supposed to be a part of the great work that Schelling planned for years "Die Weltalter" ("The Ages of the World"); of this, however, he only ever wrote a small portion and published even less. According to Schelling, this work is meant as both an introduction and an transition to the rest of this planned cyclus of works. "Nicht an sich, nur der Intention des Verfassers nach Baylage eines andern Werks, ist sie zuglaich Anfang und Uebergang zu mehreren andern, deren Absicht ist, das eigentliche Ursystem der Menschheit, nach wissenschaftlicher Entwickelung, wo möglich auf geschichtlichem Weg, aus langer Verdunkelung an's Licht zu bringen." (Nachschrift). Along with J.G. Fichte and Hegel, Schelling ranks as the most influential thinker of German Idealism. He stands in the centre of this most important and influential of philosophical traditions, and he continues to be of the utmost importance to the development of continental philosophy to this day.

Lancaster and New York, American Institute of Physics, 1964. Lex8vo. Volume 136, 9 November, No. 3B, 1964 of "The Physical Review", Second Series. In the original printed blue wrappers. A bit of fading to spine. Previous owner's stamp to front wrapper (C. Møller). A very fresh and clean copy. Pp. 1492-1505. [Entire issue: Pp. B577-B912]. First edition of Kohn and Hohnberg's seminal and groundbreaking paper, in which they developed the Density Functional Theory (DFT); a theory used in physics and chemistry based on quantum mechanics to investigate the electronic structure many-body systems, in particular atoms and molecules. The theory is also known as The Hohenberg-Kohn theorem. For his work on the DFT, Kohn was awarded the Nobel Prize in Physics in 1998. "Since its birth in the 1960's (Hohenberg and Kohn, 1964) and especially with the developments in recent years, density functional theory (DFT) has been enormously successful for calculating the electronic structure and properties of ground-state systems. Modern DFT is in principles an exact theory, built on the firm foundation of the Hohenberg-Kohn theorem (1964)." (Gonis, Electron correlations and materials properties 2, 2003, p. 285).A study in 2004 of all citations to the Physical Review journals from 1893 until 2003, found Kohn to be the author of five of the 100 papers with the "highest citation impact", including the present.

København, 1888. Originalt komponeret bordeaux helshirtbd. Helt guldsnit. Ryggen en anelse falmet, men stadig flot rød. En lille smule slitage ved kapitæler og hjørner. Særdeles nydeligt eksemplar. Også indvendig helt frisk og ren. Gammelt ejernavn fjernet fra forreste friblad. Originaludgaven.

Hafniae (Copenhagen), M. Godicchen, 1672. 4to. In contemporary full vellum binding with two clasps with title in contemporary hand to spine. Title-page in red and black. Vellum on spine cracked, otherwise a fine copy. (24), 218, (24), 71 pp. + Engraved portrait and 4 engraved plates. The work deals with chirurgical instruments, fibulas, bandages in historical perpective.Osler 3795 Waller 14722.

[Presumably Copenhagen, late 18th century, but nothing is stated] Folio. In contemporary half calf over marbled boards with with paper label pasted with title pasted on to front board. Written on good paper in fine legile band. Stamp to pasted down front end-paper and title-page, other wise fine and clean. (2), 105 pp. Danish 18th-century manuscript on transportation of military equipment on ground, water and during siege.

Berling, Springer, 1936 & 1939. 8vo. In two contemporary halv cloth bindings. In "Zeitschrift für Physik", Bd. 101, 1936 & 113, 1939. Entire volumes offered. Stamp to front free end-paper and titlepage, otherwise fine and clean. Pp. 513-538; Pp. 673-702. [Entire volume: VII, (1), 790 pp.]. First printing of Heisenberg's two famous papers on "explosion showers" of cosmic rays; a subject he himself considered "the frontier of a wholly new and revolutionary physics." (DSB). "It appears to me that Heisenberg's experiences with the Fermi theory made a deep and lasting impact on him, which changed the course of his thinking. The strong increase of cross sections with energy he had found led him to surmise that physics may have to be revised at short distances. Already in his 1936 paper [the present] we find references to 'the introduction of a universal length which perhaps must be connected with a new change a principle in the formalism, just as for example the introduction of the constant c led to a modification of prerelativistic physics". Note also that 1936 was the last year Heisenberg worked on quantum electrodynamics." (Pais, Inward Bound)."While engaged in this political fight, Heisenberg vigorously pursued his search for a consistent quantum field theory. His tenacious adherence to what he believed to be the beginning of a new quantum revolution is in part attributable to his concern for the vitality of German research. In 1935 Heisenberg's research began to focus on high-energy collisions of elementary particles in cosmic rays, the highest energy phenomena then known. Examining the Fermi (weak) interaction in early 1936, Heisenberg discovered a mathematical minimum length, about the size of elementary particles, that appeared to trigger the onset of "explosion showers" of cosmic rays. The minimum length, a notion that he had earlier considered in the context of quantum eletrodynamics, marked, he belived, the boundary of quantum mechanics and the frontier of a wholly new and revolutionary physics.Heisenberg's revolutionary notions were challenged soon afterward by the alternative quantum electrodynamics of "cascade showers." generated by Bremsstrahlung and pair production. A controversy ensued, mainly between Heisenberg and several American physicists, over the existence of explosion showers and over allegiances to the two types of theories and their implications for the future course of physics. Fermi's weak-field theory soon proved inapplicable to the problem, but in 1939 Heisenberg extended his notions to Yukawa's (strong) meson theory of nuclear forces, revitalizing the controversy into the war years. A universal minimum length remained a permanent feature of Heisenberg's physics. Although explosion showers later called "multiple processes," were discovered after the war in cosmic-ray events, the invention of renormalization techniques and the experimental confirmation of quantum electrodynamics to the highest energies left Heisenberg's physics with only minority support." (DSB)Cassidy 1936b, 1939a.