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Nimes, Paris, Pierre Beaume, 1784. Small 8vo. Cont. full calf. Richly gilt back. Top of spine gone. Some scratches on covers. XII,417 pp. On good paper. This edition is supplemented with "Memoire pour les Etudes des Missions Orientales" etc.

Stockholm, Kongl. Ordens-Boktryckeriet, 1833. Indbundet, aldeles ubeskåret med de originale bogtrykte for-og bagomslag, i et pragtfuldt senere hldrbd. i flammet kalv med overdådig tidstypisk rygforgyldning (pastichebind), forgyldt skindtitel. Indbundet af Nanna Grönvall. (4),179 pp. Lidt spredte brunpletter Et yderst attraktivt eksemplar af originaltrykket. Anckervärds politiske trosbekendelse vakte stort postyr og gav anledning til megen polemik ved udgivelsen.

Strassburg, Trübner, 1904. Lex8vo. Nice contemp. hcalf, gilt spine with gilt lettering. XXVIII,777 pp. 3 folded tables. Internally fine and clean.

(Wisconsin), The Association for Symbolic Logic, 1949. Lev8vo. Bound in red half cloth with gilt lettering to spine. In "Journal of Symbolic Logic", Volume 14. Barcode label pasted on to back board. Small library stamp to lower part of 6 pages. A very fine copy. Pp. 159-66. [Entire volume: IV, 284 pp.). First printing of Henkin's important paper which his version of the proof of the semantic completeness of standard systems of first-order logic, today known as the "Henkin's completeness proof":Gödel published a version of the proof in 1930 but Henkin's was much easier to survey than Gödel's and has thus become the standard choice of completeness proof for presentation in introductory classes and texts.

Stockholm, Iwar Häggström, 1869. Stor 4to. Samtidigt hldrbd. Ryg slidt og de øverste 3 cm. mangler. (6),26,(1),66,(4) pp. samt 8 litograferede plancher (møntfund, brakteater m.m.). Lidt spredte brunpletter. Første planche lidt brunplettet. Montelius's doktorafhandling, Sjælden.

(London, Taylor and Francis, 1856). 4to. No wrappers as extracted from "Philosophical Transactions" 1856 - Vol. 146 - Part I. Pp. 297-342 a. pp. 343-355. Clean and fine. First printing of the paper in which Airy describes his remarkable experiments aiming at finding the density of the earth. His approach to the problem was to determine the differences of gravity at the top as well at the bottom of a suitable deep mine."One of the most remarkable of Airy's researches was his determination of the mean density of the Earth. In 1826, the idea occurred to him of attacking this problem by means of pendulum experiments at the top and bottom of a deep mine. His first attempt, made in the same year, at the Dolcoath mine in Cornwall, failed in consequence of an accident to one of the pendulums. A second attempt in 1828 was defeated by a flooding of the mine, and many years elapsed before another opportunity presented itself. The experiments eventually took place at the Harton pit near South Shields in 1854. Their immediate result was to show that gravity at the bottom of the mine exceeded that at the top by 1/19286 of its amount, the depth being 383 m (1,256 ft) From this he was led to the final value of Earth's specific density of 6.566.[This value, although considerably in excess of that previously found by different methods, was held by Airy, from the care and completeness with which the observations were carried out and discussed, to be "entitled to compete with the others on, at least, equal terms." (The currently accepted value for Earth's density is 5.5153 g/cm³.). (Wikipedia).

(Paris, Bertrand, ca. 1840). 24,5x34 cm.(billedflade). Originalt litografi trykt på kinapapir med brede marginer (Dessiné par R. de Cornulier). Fangerne befinder sig på nogle klippeskær hvorpå skindtelt og i forgrunden vises skelettet til en kajak under konstruktion. Planche Nr. 142 fra Paul Gaimard "Voyage en Islande et au Groënland exécuté pendant les Années 1835 et 1836 sur la Corvette la Recherche. Paris, Arthur Bertrand, 1842."

Frankfurt, Knoch, 1688. 8vo. In contemporary full calf with four raised bands and and richly gilt spine. Wear to extremities, leather on spine cracked and head of spine chipped. Title-page with underlignings in red. First few leaves with vague dampstain otherwise internally nice and clean. (18), 670, (79) pp. Volume 1 of the second edition of the first French translation of Pufendorf's work.

(Paris, Bertrand, ca. 1840). 29x41,5 cm. (billedflade). originalt litografi trykt på kinapapir (dessiné et litho. par Bayot). Bønder fra indlandet ankommer på heste til markedsplads ved Reykjavik, iklædt folkedragter, der købslås om fisk. Planche nr. 13 fra Paul Gaimard "Voyage en Islande et au Groënland exécuté pendant les Années 1835 et 1836 sur la Corvette la recherche. Paris, Arthur bertarnd, 1842."

Kjøbenhavn, Bianco Luno, 1875. 4to. Ubeskåret uden omslag som udkommet i "Videnskabernes Selskabs Skrifter.", pp. 41-246 samt 6 kobberstukne plamcher.

Oxford, Clarendon Press, 1990. Orig. full cloth with dustjacket. Portrait. VIII,142 pp. A few pencil underlinings. First edition.

(Paris, Bachelier), 1839. 4to. No wrappers. Extracted from "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome IX. Pp. 45-46. First printing of an importent paper in mathematics in which Lamé proves that Fermat's last theorem is true for n=7, hereby bringing the known proved cases to n= 3, 4, 5, and 7. ( x7 + y7 = z7).

Berlin, Georg reimer, 1857-59. Bound in 4 modest cont. hcloth. Titles with stamp. Ca. 2.500 pp.

Lancaster, American Physical Society, 1956. Lex8vo. Volume 28, April, No. 2, 1955 of "Reviews of Modern Physics". Entire volume in the original printed orange wrappers. Previous owner's name to upper margin of front wrapper. A 2 cm long tear to upper left corner of front wrapper. Otherwise a very nice and clean copy. [Elasser:] Pp. 135-163. [Entire issue: Pp. 103-170]. First printing of Elsasser's paper on the Hydromagnetic Dynamo Theory. Elsasser, considered the father of the presently accepted dynamo theory as an explanation of the Earth's magnetism, proposed that this magnetic field resulted from electric currents induced in the fluid outer core of the Earth. He revealed the history of the Earth's magnetic field through pioneering the study of the magnetic orientation of minerals in rocks."His [Elsasser] main attention became focused on a research field he had been cultivating almost as a diversion alongside his official duties since the late 1930s: geomagnetism. Discounting a hypothesis popularized by Einstein and Patrick Maynard Stuart Blackett that Earth's magnetic field is a property of its rotation per se, he thought instead of a self-sustaining dynamo in the molten metallic core. A key clue for Elsasser in his approach to the problem was a similarity between maps of the long-term variations in Earth's magnetic field and the maps of atmospheric flows familiar from his work in meteorology. Elsasser theorized that Coriolis forces and convection currents in the conductive liquid combined to produce poloidal magnetic and toroidal electric fields (the former extending beyond Earth's surface, the latter interior to it) that had a feedback effect on each other. Though some details were unclear, he argued that the dynamo theory gave the right order of magnitude for the magnetic field's strength and potentially accounted for its secular variations. By the mid-1950s, Elsasser's junior colleague at Utah, Eugene Newman Parker, and the British physicists Edward Crisp Bullard and the Australian-born George Keith Batchelor had explored alternative dynamo models and elaborated the mathematics showing that the field was self-sustaining. The dynamo theory ultimately received wide acceptance. It subsequently also became a key element of Hannes Alfvén's Nobel Prize-winning work on plasma electrodynamics. In the 1960s, Elsasser's geophysical interests moved into modeling seismic deformation in the context of the burgeoning theory of plate tectonics." (DSB)

Dessau, Aue, 1845-47. 2 contemp. hcalf. Gilt spines. Gilt lettering. Stamps on title-page. Labels pasted on lower part of spines. XXVI,227;VI,374 pp.

(London, W. Bulmer and Co., 1809). 4to. No wrappers as extracted from "Philosophical Transactions" 1809 - Part II. Pp. 420-454 and 1 large folded engraved plate depicting the large Circle Instrument (41x26 cm.). The paper records observations made at Westbury and describes a simple method of correcting latitudes at places."The observations..were made..in the years 1800 and 1801 with an Astronomical Circle of twoo feet and a half in diameter, constructed by Mr. Troughton, and considered by him as one of the best divided instruments he had ever made; a drawing of it, with a short description, is annexed to the observations.""Troughton made many contributions to the development of instrument making: in 1788 an improvement of Hadley's quadrant; in 1790 a mercurial pendulum; and in 1796 a refined version of the Borda, or reflecting circle. He was responsible for substituting spider web filaments for hair or wire in his optical instruments.....Troughton's most notable achievement was the improvement of the method of dividing a circle. His paper on this in 1809 won him the Copley Medal from the Royal Society, which elected him as fellow the following year."(DSB).

Kiøbenhavn, Johan Frederik Schultz, 1795. Ubeskåret i nyere marmoreret papbd. med forgyldt skindtitel på ryg. (Anker Kyster 1943). X,70 pp. Rent frisk eksemplar. Originaltrykket af dette vigtige værk i kampen om ytringsfrihed i Danmark.

London, John Maxwell and Comp., 1864. Small 8vo. 2 nice solid later full cloth. XIII,387;II,360 pp. and 1 folded engraved map. First edition.

Leiden, Brill, 1969-71. Royal8vo. 2 orig. full cloth. Dustjackets with tears. Stamp on titles. VIII,690,(1);VI,715 pp. Fine and clean.

Amsterdam, Abraham Wolfgang, 1691-93. 12mo. Bound in 2 contemp. full calf. Richly gilt spines. Titlelabels with gilt lettering. Light wear to edges. Tiny wormholes to covers. (Ca. 1650 pp).

Göteborg, Handelstidnings Aktiebolags Tryckeri, 1879. Lex8vo. Samtidigt papbd. med det originale bogtrykte foromalg på forpermen. Stempel på titelbladet. 47 pp., trykt i 2 spalter. Eksemplaret har en 4 liniers dedikation på foromslaget fra Oscar Dickson "Vice Admiralen.... S.A. Bille", egenhændig underskrevet "Oscar Dickson". (S.A. Bille = Steen Andersen Bille). Afhandlingen er tryk i kun 110 eksemplarer.

(Leipzig, Baumgärtner, 1821). 4to-oblong. (22 x 28 cm.). Contemp. hcalf. With 22 fine engraved plates (Carl Eickemeyer del.). Faint scattered brownspots.

Copenhagen, No printer, 1640. 4to. No wrappers. (32) pp. Bibl. Danica III:102.

Carlsruhe, Creuzbauer'sche Buchhandlung, 1836. Contemp. clothbacked boards. (2),263,(1) pp. and 3 engraved plates. Somewhat brownspotted throughout.

Kiøbenhavn, 1839. 8vo. In recent half calf with gilt lettering to spine. Previous owners name to front free end-paper. Stamp to title-page, otherwise nice and clean. (8), 197 pp. + 1 plate. Uncommon first Danish edition of Wiegmann’s pioneering treatise on plant pathology, one of the earliest systematic studies of plant diseases. The work distinguishes between parasitic and non-parasitic causes describing fungal infections, rusts, smuts and environmental disorders affecting crops and garden plants.