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Paris, Charpentier, 1867. 4to. Uncut in contemp. hcalf. Spine richly gilt. Engraved portrait as frontispiece. VIII,735,56 pp. 11 engraved plates. Some scattered brownspots.

(Paris, Bertrand, ca. 1840). 25x 35 cm (billedflade). Originalt litografi trykt på kinapapir med brede marginer (Dessiné par A. Mayer). Prospekt af Laugarnes med folk og heste i forgrunden samt Jónssons bolig. Planche nr. 22 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."

Kjøbenhavn, Fr. Brummer, 1811. Samtidigt hldrbd. med rygforgyldning og skindtitel på ryg. Lettere brugsspor. Stempel på titelblad. (4),XVI,207 pp. samt 1 kobberstukket foldetavle. Lidt spredte ubetydelige brunpletter.

Berlin, Unger, 1785. Marbled boards. Stamp on title-page. X,67,(2) pp., 8 folded engraved plates.

Paris, Hermann & Cie, 1949-51. Contemp. full cloth. (4),184,(2),200 pp. Clean and fine. First edition. Actualités Scientifiques et Industrielle 1074 and 1132.

Berlin, Weidmannsche Buchhandlung, 1891. Royal8vo. Contemp. hcalf. Spine gilt. Wear along hinges. Some wear to spine. Stamp on titlepage. VI,CXXIV,339 pp., textillustr. and 7 lithographed folded maps. Internally clean.

Upsala, Regae Academiae Typographi, 1822. 4to. No wrappers as issued. Orig. marbled spine-paper. (2),8 pp. First edition. Here is described species from South Africa.

Berlin, Uppsala & Stockholm, Paris, Almqvist & Wiksell, 1909. 4to. Bound in contemporary half cloth with gilt lettering to spine. In "Acta Mathematica", Vol, 32, 1909. Entire volume offered. Stamps to title page, otherwise a fine and clean copy. pp. 195-200.[Entire volume: (6), 392, 12 pp]. First appearance of Poincaré's paper on Schoenfliess and Zermolo's paper published in the same volume (vol. 32).

Hildesburghausen, Bibliographischen Instituts, 1861. 8vo. Later hcloth. Printed and engraved title-page. 171 pp., 41 steel-engraved plates (views etc.). A few scattered brownspots to textleaves, plates in general clean.

(Stockholm, Nordisk Rotogravyr, 1927). Lille 4to. Smukt hldrbd. med rig rygforgyldning udført som en kopi af bindet om originalmanuskriptet. (Nordstedt & Söners Bogbinderi). Kun udført i 100 eksemplarer med dette "originalbind". 97 blade, hvoraf de 53 er ubeskrevne. Faksimile af originalhåndskriftet med 7 tegninger.

(Berlin, Haude et Spener, 1752). 4to. No wrappers, as issued in "Mémoires de l'Academie Royale des Sciences et Belles-Lettres", 1750, tome VI, Titlepage to the section. (3), pp. 520-532 (+) pp. 52-64 (Expose). In 1751, Maupertuis' priority for the principle of least action was challenged in print (Nova Acta Eruditorum of Leipzig) by an old acquaintance, Johann Samuel Koenig, who quoted a 1707 letter purportedly from Leibniz that described results similar to those derived by Euler in 1744. However, Maupertuis and others demanded that Koenig produce the original of the letter to authenticate its having been written by Leibniz. Koenig only had a copy and no clue as to the whereabouts of the original. Consequently, the Berlin Academy under Euler's direction declared the letter to be a forgery and that its President Maupertuis could continue to claim priority for having invented the principle.Enestroem: 182.

Paris, Lévy Frères, 1855. 2 contemp. hcalf. Gilt spines. Gilt lettering. Stamp on title-pages. 2 lithographed frontispieces (portr. a. facs.). XXVI,(2),572;(2),606 pp.

Berlin, Georg Reimer, 1861. 4to. As extracted from "Journal für die reine und angewandte Mathematik, 1861, band 58. Without backstrip. Fine and clean. Pp. 259-69. First apperance of these two papers in which Cayley obtained the transformed equations for the cubic and quartic equations.

(London, Harrison and Sons, 1892). 4to. No wrappers as extracted from "Philosophical Transactions" Year 1891, Volume 182 - Series A. Pp. 397-448. Textillustrations. First appearance of one of Lockyer's importent papers on stellar evolution."Lockyer's scheme of stellar development has been modified in many importent details, but its basic principle. of both rising and falling temperatures in the life history of a star, is the central idea of our present theory of stellar evolution.""Joseph Norman Lockeyer (1836-1920), pioneer English astrophysicist. He made importent advances in the field of solar and stellar physics, and is responsible for naming the element helium, for emphasizing the two-branch theory of stellar evolution, and (jointly with Janssen) for the method of observing solar prominences without an eclipsee." (Source Book in Astronomy).

Berlin, Junker und Dünnhaupt, 1932. Lex8vo. Orig. printed wrappers. A small nick to frontwrapper at top of spine. Stamps on halftitle and foot of titlepage. VIII,88 pp. Inscribed from the author on halftitle (to Jørgen Jørgensen) "Mit den besten Grüssen vom Verf./ übersandt". From the library of the Danish logician and philosopher Jørgen Jørgensen with his name on frontwrapper. First edition (Philosophische Forschungsberichte Heft 13).Dubislav was joint founder (with Hans Reichenbach and Kurt Grelling) of the 'Berlin Society for Empirical (later: Scientific) Philosophy' (Berliner Gesellschaft für empirische Philosophie), which, along with the Vienna Circle, is one of the points of origin of logical empiricism. The founding members of the Berlin Circle were listed as sympathisers within the Vienna Circle.Dubislav focused on a logical and mechanistic foundation of mathematics and physics, influenced by Bernard Bolzano's "Theory of Science" (Wissenschaftslehre). He presented a formalised account of Gottlob Frege's theory of definitions.

Bln., 1817. Hcloth. Engr.title, VI, 362 pp. A little brownspotted.

Berlin, Reimer, 1830. Contemp. hcalf. Gilt spine. gilt lettering. Stamp on title-page. VIII,370,(2) pp.

Paris, Gide Fils, 1823. 3 contemp full mottled calf. Gilt spines. Title-and tomelabels with gilt lettering

(London, Taylor and Francis, 1870). 4to. No wrappers as extracted from "Philosophical Transactions" 1869 - Vol. 159 - Part I. Pp. 1-110, textillustr. a. 2 plates. First printing of one of the first papers dealing with the photography of the sun. De La Rue invented the "photoheliograph" for the Kew observatory, and by means of it the first solar light-pictures of real value were taken. The conclusions arrived at by photographic means at Kew were communicated to the Royal Society in a series of papers drawn up jointly by De la Rue, Balfour Stewart, and Benjamin Loewy. They influenced materially the progress of thought on the subject they were concerned with and initiated astrophysics.

(Paris, Bertrand, ca. 1840). 27x33 cm. originalt litografi trykt på kinapapir med brede marginer (Dessinée par A. Mayer). Øverste margin med skjold som ikke berører billedfladen. Parti fra søen med gæs i vandet, i luften og på land. Planche nr. 37 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."

Gotha, Julius Perthes, 1878. 4to. No wrappers. IV,31 pp. and 2 folded maps. (Petermann's "Geographischen Mittheilungen", Ergänzungsheft 53).

London, Methuen & Co., (1920). 8vo. Orig. full blue cloth w. ornamental title to front board and spine. Back faded and a bit soiled. Corners and capitals bumped. First U.K. edition, printed the same year as the first edition (Chicago).

Paris, Hachette, 1876. 2 cont. hcalf. Top of spines worn. Extremities rubbed. Internally fine. (8),VIII,455;(3),528 pp. Printed on good paper.

(Berlin, Julius Springer, 1922). 8vo. Bound in contemporary half cloth. In: "Zeitschrift für Physik", 11 band, 1922 (not the complete issue). Find and clean. Pp. 170-76. [Offered volume: Pp. 1-324, 327-398.] First printing.

(Paris, Bachelier), 1843. 4to. No wrappers. In: "Comptes Rendu hebdomadaires des Séances de l’Académie des Sciences", Vol. 17, No 8. Pp. (327-) 365. (Entire issue offered). Daguerre's letter: pp. 356-361. First printing of an interesting paper in the history of photography on the process of preparing photographic plates.