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(Paris, Crochard, 1828). 8vo. Without wrappers. Extract from 'Annales de Chimie et de Physique', Series 2 - Volume 37. With halftitle to vol. 37. Pp. 291-315 and 1 folded engraved plate, depicting experimental apparatus and the new contact thermometer. First appearance of an importent paper investigating the heat flow in different substances by using his new contact thermometer.

(Halle, Rengerschen Buchhandlung, 1800) Without wrappers. In "Annalen der Physik. Herausgegeben von Ludwig Wilhelm Gilbert", Bd. 3, Drittes Stück. (The entire issue offered). Pp. 257-376 a. 3 folded engraved plates. Rumford's paper: 257-376. First appearance in German of selected papers from Rumford's Experimental Essays on heat, describing smoky fireplaces and his design of more efficient fireplaces using radiant heat better. He discovers that mat surfaces radiate heat better than shiny ones etc. etc.

Frankfurt A/M, Verlag für Kunst und Wissenschaft, 1859. Contemp. hcloth, marbled boards. Stamp on titlepage and half title. (2),105,(4) pp., textillustrations and 7 lithographed plates, of which 6 are folded. Scattered brownspots. First edition.

Kjøbenhavn, Jacob Behrend, 1827. Samtidigt helldrbd. i glat kalveskind med tredobbelt ramme på permer, den yderste i stregforgyldninger, de inderste med rullestempler i blindtryk. Indre forgyldr bordurer. Kantforgyldning og helt guldsnit. (8),255,(1) pp. Ren og frisk, trykt på velin. Eksemplar i gaveudstyr.

Berlin, G. Reimer, 1838. 4to. In "Journal für die reine und angewandte Mathematik, 18. Band, 4 Heft, 1838". In the original printed wrappers, without backstrip. Fine and clean. [Minding:] Pp. 297-302. [Entire issue: Pp. 281-376, (2) + 1 folded plate.]. First printing of Minding's first work on the deformation of general ruled surfaces into ruled surfaces and showed that any ruled surface can be developed on another whose direction vectors form a circular cone. This was subject in which he was to make his most important discoveries. "Minding's most important discoveries were in the dilierential geometry of surfaces; in these works he brilliantly continued the researches of Gauss, which had been published in 1828. In his first paper (1830), which dealt with the isoperimetric problem of determining on a given surface the shortest closed curve surrounding a given area (on the plane it is the circumference of a circle), he introduced the concept of geodesic curvature. It was independently discovered in 1848 by O. Bonnet, and it was he who named it geodesic curvature. Minding soon proved, as did Bonnet after him, the invariance of the geodesic curvature under bending of the surface. Neither of them knew that the same results had been presented in an earlier, unpublished paper of Gauss's (1825)." (DSB).

Torshavn, H.N. Jacobsens Bókahandil, 1941. Ubeskåret i originale bogtrykte omslag. 72 pp. Originaludgaven.

Paris, Valenciennes, Labady, ca. 1760. Uncut in original marbled stiff wrappers. Stamp on title-page. (4),228,(2) pp. Clean and fine.

(Paris, Gauthier-Villars), 1906. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 143, No 23. Pp. (857-) 940. (Entire issue offered). Korn's paper: pp. 892-895. And one diagram in the text. Paperquality rather poor, a bit fragile. In this paper Korn gives a technical decription of his invention of his telephotographic machine (later the fax-machine)In 1902, Arthur Korn (1870-1945) in Germany invented telephotography, a means for transmitting still photographs by means of electrical wires. In 1907, Korn sent the first inter-city fax when he transmitted a photograph from Munich to Berlin. By 1906 his equipment was being put into regular service for transmission of newspaper photographs between Munich and berlin via telegraph circuits. (Hook & Norman "Origins of Cyperspace", No. 171).

Gotha, Julius Perthes, 1864. 4to. No wrappers. IV,46 pp., 4 large folded lithographed maps, 1 plate in chromolithography and 1 large folded lithographed panorama. Some scattered brownspots. (Petermann's "Geographischen Mittheilungen", Ergänzungsheft No 13).

Royal8vo. Orig. green full cloth. 279 pp., 120 plates. (Bureau of American Ethnology, 34. Annual Report).

Stuttgart, Hoffmann'sche Verlags=Buchhandlung, 1849. 4to. Bound in contemp. hcalf. Gilt spine with gilt lettering. A paperlabel pasted on upper part of spine. Light wear to top of spine. Stamps on title-page. VIII,212 pp. and 81 lithographed plates. Scattered brownspots.

(Rio de Janeiro, 1923). Large 4to. Contemp. hcalf. Spine a bit rubbed. With gilt lettering. 504,(8) pp., 33 plates and 100 textillustrations.

Copenhagen, 1893. Folio. (51 x 45 cm.). Orig. printed clothbacked boards. Stamp on title-page. 28 pp. "In the present reproduction only those few pages are printed, which concerns the discovery of America by the Northmen in the first years of the 11th century.". Lower right corners damaged by insect-bites, no loss of text. Old Norse text, English and Danish translation.

Leipzig, J. C. Hinrichs, 1833. Contemporary half calf, spine somewhat worn, top of spine with a little loss of leatheer. Stamp on titlepage. XII,312 pp. Some scattered brownspots. First edition.

Kempten, Rösel'schen, 1825. Contemp. hcalf. Gilt spine with gilt lettering. Stamp on title-page. XII,332,(10) pp., 9 folde lithographed plates. Light browning to the first few leaves.

[Berlin, Stockholm, Paris, F. & G. Beijer, 1883]. 4to. Without wrappers as extracted from "Acta Mathematica. Hrdg. von G. Mittag-Leffler.", Bd. 2. No backstrip. Fine and clean. Pp. 349-380. First printing of Poincaré's concluding papers on transfinite numbers.

Wien, Verlag der Österreichischen Akademie der Wissenschaften, 1990. Folio. In the original 2 uniform red full cloth bindings with gilt lettering to spine and front board housed in matching casette. Ex-libris pasted on to verso of front board. A very fine and clean set. [Text vol.:] 158, (58); [Plate volume:] 13, (168) pp. Veröffentlichungen der Kommission dü Schrift- und Buchwesen des Mittelalters, Reihe I, Band 7

London, WM. Clowes and Sons, 1881. 8vo. In the original blue printed wrappers. Offprint from "The Journal of the Society of Telegraph Engineers" Read June 3, 1880. Wrapper loose, otherwise a fine copy. 8 pp. + a folded plate. Two contemporary photos of an engine laid in. Offprint issue of Siemens's paper on the application of his Dynamo-Electric machine.

Leipzig, Ambrosius Barth, 1906. 8vo. In contemporary halv calf with four raised bands and gilt lettering to spine. In "Annalen der Physik", Vierte Folge, Band 21. Entire volume offered. Stamp to title page. Wear to extremities. Internally fine and clean. Pp. 583-86. [Entire volume: 1055, VIII pp.]. First printing of Einstein's paper on a method for the determination of the transversal and longitudinal mass of the electron. This eventually caused a major breakthrough in Weil no. 14

(Frankfurth am Main, Schäfer), 1795. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. Stamp on title-page. 160 pp., 2 large folded engraved maps/plans. Scattered brownspots.

(Giessen, 1880). Offprint from "Berich der Oberhess. Gesellschaft f. Natur-u. Heilkunde" pp. 1-16 and 1 lithographed plate. From the library of H. Becquerel with his small paperlabel pasted on front with the booknumber "B 1919". First edition in the scarce offprint.

London, J.d. Potter, 1856. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. Lithographed frontispiece. XXVI,(2),376 pp., 1 folded lithographed map. Clean and fine.

Berlin, Julius Springer, 1925. In: 'Mathematische Annalen', volume 93, pp.1-36. Entire volume offered here (314 pp.) Bound in modern full cloth. Ex-library stamp on title page. First edition of Ackermann's doctorial dissertation. Ackermann was a student of Hilbert and played an important role in the development of 20th century mathematical logic.

(Paris, Bachelier), 1838. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome VII, No 8. Pp. (369-) 446. Turpin's paper: pp. 369-402. First apperance. In this importent paper Turpin confirmed, by experiments, Schwann's theory of fermentation, that yeast is a living organism that reproduces by budding, as did Cagniard-Latour. Turpins work was later (1840) published with plates.

London, Fisher Unwin, 1912. Orig. full cloth. Gilt lettering. Top-edge gilt. Frontispiece. 388 pp., 38 illustrations on many photographic plates, 1 folded map. Clean and fine. First edition.