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Paris, Barbou, L'An III, de la Republique Francaise (=1795). 8vo. Uniformly bound in two nice sprinckled full calf binding with five raised bands. A few scratches to boards and hole to back board perforating lower part of margin of last 200 pp., not affecting text. (2), 322, (1); 370 pp.

New York, American Telephone and Telegraph Company, 1946. 8vo. In the original printed blue wrappers. In "The Bell System Technical Journal", Volume XXV, Number 1, January, 1946. Entire issue offered. Previous owner's name to front wrapper. A very fine fine and clean copy. Pp. 1-46. [Entire issue: 166 pp.]. First printing. The focusing ability of a lens or mirror type antenna is directly related to its width in wavelengths of the radar wave. The wider the antenna is in wavelengths, the smaller the angle of the beam that contains 50% of the radiated energy. The smaller the angle of the beam, the farther the radar can see the target and the more precisely the angle of the target can be known. Nike tracking radars had an effective antenna width of about 150 wavelengths. (The antennas were actually physically a little larger, but there are edge effects which decrease the focusing effect of the edge areas.)

London, The Economist Office, 1927. Small folio. Bound with the original wrappers in comtemporary half calf. Entire volume 104, July - September, 1927, of The Economist. Wear to extremities, two holes through front board, one of them affecting first 30 pages. Pp. XII, 1368. Original printing of The Economist - the most important and influential economic journal worldwide - from the year 1927.

Roma, Ex Typographia Hieronymi Mainardi, 1750. Large 8vo. Beautiful cont. Cambridge Bdg. w. gilt border on boards. 5 raised bands on back, back richly gilt. All edges of boards blindstamped. Woodcut title-vignette. Missing first blank and endpapers. Title-page w. small repair to margin. VIII, 52 pp. Greek and Latin.

Bologna, Ente Fiere, 1977. 4to. In the original printed wrappers. First edition.

London, Punch Office 1848. Near contemporary half calf, lower part of spine missing. Front hinge weak and cracking. VIII, 180pp. Title page vignette, numerous in-text illustrations. Old name on flyleaf. First edition.

Kjöbenhavn, Bianco Luno, 1841. 4to. Uncut, unopened in the original blue boards. Offprint from "Det Kgl. Danske Videnskabnes Selskab", 9de Deel. A nice and clean copy. (2), 16 pp. + 1 plate.

Berlin, G. Reimer, 1852. 4to. In the original printed wrappers, without back strip. In "Journal für die reine und angewandte Mathematik", 43. band, Heft 4, 1852. Entire fourth heft offered. Fine and clean. Pp. 294-339. [Entire volume: Pp. 283-374 + 3 plates.]. First printing.

Bruxelles, Henri Bertels, 1924-26. 4to. Orig. pictorial cloth. 380, 407, 406, 389 pp. With numerous maps, coloured plates, and illustrations. Library stamps.

Sthlm., 1944. Ubeskåret i orig. omsl. Brugsspor. Originaludgaven som udkom første gang på svensk, oversat efter det norske manuskript "Det svundne er en drøm." Har tilhørt Sandemoses ven Volmer Suszkiewicz, og bærer hans navnetræk samt året "45" på smudstitelbladet.

New York, American Telephone and Telegraph Company, 1928. 8vo. In the original printed blue wrappers. In "The Bell System Technical Journal", Volume VII, Number 2, April 1928. Entire issue offered. Light discolouration to spine and previous owner's signature and stamp to front wrapper. Otherwise a fine and clean copy. Pp. 187-194. [Entire issue: Pp. 161-374.]. First printing of Waterson's paper on the differences in operating practice on the two sides of the Atlantic and plans which were worked out for taking account of them in the handling of commercial transoceanic calls.

New York, American Telephone and Telegraph Company, 1959. 8vo. In the original printed blue wrappers. In "The Bell System Technical Journal", Volume XXXVIII, Number 5, September, 1959. Entire issue offered. Previous owner's name to front wrapper. A very fine fine and clean copy. Pp. 1067-1178. [Entire issue: 1167-1336 pp.]. First printing.

[Unknown printer], 1910. 8vo. Offprint in the original printed wrappers. Reprinted from "American Journal of Psychology, July, 1910, Vol. XXI, pp. 349-370". Previous owner's name written to top right corner of front wrapper. A very fine and clean copy. (2), 22 pp. First printing of Jennings paper on the behavior of the lowest organisms. Jennings "published an important essay in 1910 [the present], in which he set forth his methodological credo regarding the then prevailing trends in the study of animal behavior." (Cordeschi, The discovery of the artificial: behavior, mind, and machines, p. 17).Herbert Spencer Jennings (1868-1947), American botanist who was trained at Illinois Normal School and the University of Michigan, then spent a year studying protozoans with Max Verworn at the zoological station in Naples. In the early twentieth century, Jennings began studying inheritance and evolution in protozoans and introduced new experimental methods for laboratory study. By 1920 he had left the laboratory to popularize genetics and harmonize the relationship between biology, religion, and the humanities.

[Berlin, Julius Springer, 1923]. 8vo. Extracted from "Zeitschrift für Physik. Hrsg. von Karl Scheel. 16. Band". No backstrip. Pp. 229-244. First printing of this important paper in which Heisenberg and Born applied the quantum theory the helium atom.Heiseberg arrived in Gottingen for the winter semester of 1922-1923, which gave a private assistantship with Born."Except for semester-long visits to Munich and Copenhagen. Heisenberg remained in Göttingen until May 1926. The period was one of his most productive scientifically. With his colleagues there, he developed the matrix form of quantum mechanics, progressed toward an interpretation of the new formalism, and applied the quantum theory, along with electron spin, to the Zeeman effect, the helium atom, and other old problems. In July 1924 Heisenberg qualified to teach on the university level by presenting to the Göttingen faculty a modification of the quantum rules for the Zeeman effect. The modification foreshadowed the notions of what Born was now calling a future "quantum mechanics." (DSB).Cassidy 1923b

[Berlin, Julius Springer, 1923]. 8vo. Extracted from "Zeitschrift für Physik. Hrsg. von Karl Scheel. 16. Band". No backstrip. Pp. 229-244. First printing of this important paper in which Heisenberg and Born applied the quantum theory the helium atom.Heiseberg arrived in Gottingen for the winter semester of 1922-1923, which gave a private assistantship with Born."Except for semester-long visits to Munich and Copenhagen. Heisenberg remained in Göttingen until May 1926. The period was one of his most productive scientifically. With his colleagues there, he developed the matrix form of quantum mechanics, progressed toward an interpretation of the new formalism, and applied the quantum theory, along with electron spin, to the Zeeman effect, the helium atom, and other old problems. In July 1924 Heisenberg qualified to teach on the university level by presenting to the Göttingen faculty a modification of the quantum rules for the Zeeman effect. The modification foreshadowed the notions of what Born was now calling a future "quantum mechanics." (DSB).

København, Ejnar Munksgaard, 1942. Royal8vo. Uncut in the original yellow wrappers. Light miscolouring to extremities, otherwise fine. 88 pp. First edition.

New York, American Telephone and Telegraph Company, 1951. 8vo. In the original printed blue wrappers. In "The Bell System Technical Journal.", Volume XXX, July, 1951, No. 3. The entire no. 3 offered. Wear to spine and previous owner's name to front wrapper. Otherwise fine and clean. Pp. 626-651. [Entire volume: Pp. 491-778]. First printing.

Kjöbenhavn, Bianco Luno, 1841. 4to. Uncut, unopened in the original blue boards. Offprint from "Det Kgl. Danske Videnskabernes Selskab"). Plates with marginal brownspotting, otherwise nice and clean. Pp. (5), 300-392 + 5 plates.

Jena, Eugen Diederichs, 1918,. Orig. full suede, front cover slightly soiled. 243 pp. 7 illustrations after woodcuts by Walter Klemm. No 764 of 1000 copies on Gelder Büttenpapier.

New York, American physical Society, 1961. Lex8vo. Entire issue of "Physical Review Letters, Volume 6, Number 3, February 1, 1961" in the original blue/green wrappers. A very nice and clean copy. Pp.96-98; Pp. 95-6. [Entire issue: Pp. 85-161]. First printing of these important papers in the history of the laser. "An interesting historical footnote is the red ruby laser, demonstrated independently by Schawlow at Bell and by Irwin Wieder at Varian Associates, whose papers both arrived at Physical Review Letters on December 19, 1960, and were published in the same issue.21 Maiman’s laser used "pink" ruby, in which the chromium concentration was low enough that chromium atoms did not interact with each other. At higher concentrations the chromium atoms gave the ruby crystal a deeper red appearance, and their interaction created a four-level laser system with emission lines at 701.0 and 704.1 nm - if the material was cooled to liquid nitrogen temperature. Both Schawlow and Wieder demonstrated flashlamp-pumped lasing on the red ruby laser, but like the uranium and samarium lasers, red ruby never proved practical."

Wiesbaden, 1969-78. Lex8vo. 36-38 bound.

Berlin, G. Reimer, 1827. 4to. As extracted from "Journal für die reine und angewandte Mathematik, 2. Band, 1827"., without backstrip. Fine and clean. [Gudermann:] Pp. 223-226. [Entire volue: Pp. 198-292 + two folded plates]. First printing of Kummer's paper on Transcendental Numbers.

Leipzig, B.G. Teubner, 1909. 8vo. Original printed wrappers, no backstrip and a small nick to front wrapper. In "Mathematische Annalen. Begründet durch Alfred Clebsch und Carl Neumann. 67 Band. 2. Heft." Entire issue offered. Internally very fine and clean. [Weyl:] Pp. 225-45. [Entire issue: Pp. 145-280]. First printing of Weyl's paper on the convergence of series which continue as orthogonal functions. "Very few of Weyl's 150 published books and papers-even those chiefly of an expository character-lack an original idea or afresh viewpoint. The influence of his works and of his teaching was considerable: he proved by his example that an "abstract" approach to mathematics is perfectly compatible with "hard" analysis and, in fact, can be one of the most powerful tools when properly applied." (DSB)

Lancaster, AMerican Physical Society, 1953. Lex8vo. Entire volume offered in the original blue wrappers with previous owner´s stamps [C. Møller, Danish physician] to front wrapper. In "The Physical Review" Volume 91, August 15, No. 4, 1953 of , Second Series. A fine and clean copy. Pp. 1008-1009. [Entire volume: Pp. 775-1033]. First printing of Dicke's early studies of polarization of atoms. "After the war Dicke returned to Princeton University, where he had spent two years as an undergraduate. He was appointed Cyrus Fogg Brackett Professor of Physics in 1957 and Albert Einstein Professor of Science in 1975. In his first decade back at Princeton Dicke put aside his interest in astronomy, working instead on quantum optics and techniques of precision measurements of atomic structure. His style is illustrated by his demonstration of what came to be called Dicke buffering" (DSB)

[No place, no printer], 1961. 4to. Offprint from "EUROPA, Monatszeitschrift für Politik, Wirtschaft, Kultur", August 1961. Fine and clean. 4 pp. Offprint of the first German (and overall) translation of Bohr's "The Unity of Human Knowledge". in which he investigates the human knowledge with its scientific processes in the history.