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Berlin, Julius Springer, 1928. 8vo. Contemp. hcloth. Gilt lettering to spine. In: Zeitschrift für Physik, Vol. 46. VII,902 pp. (Entire volume offered). Weyl's paper: pp. 1-46. Clean and fine. First printing of the paper in which Weyl developed the concept of continous groups by using matrix representations in dealing with the mathematical formalism of quantum theory.

Kiøbenhavn, Berling, 1746. Samtidigt helldrbd. med spejl og blindtrykte permer. Rig rygforgyldning. Forgyldt skindtitel. Slid ved kapitæler og lidt kantslid. Kobberstukket portræt (Holberg). (8),324 pp. samt 3 kobberstukne plancher. Lettere bruning. Brugsspor. Ehr.-M. I:388. Første samlede udgave. Forlæggerens oplysninger i Fortalen: "Dette værk er en Samling af Hr. Assess. Ludvig Holbergs Poetiske Skrifter, undtagen Peder Paars, de samme have tilforn været stykkeviis trykte, men ere nu ikke at bekomme..."

(London, Taylor and Francis, 1865). 4to. No wrappers as extracted from "Philosophical Transactions", Vol. 154 - Part III, pp. 579-666 and 2 lithographed plates. Some faint brownspots to theplates. Otherwise clean and fine. First printing of a main paper of the founder (together with Cayley) of the theory of algebraic invariants, in which Sylvester investigates the roots of quintic equations and the proof of Newton's rule."Another problem of great importence investigated in two long memoirs of 1853 and 1864 (the paper offered) concerns the nature of the roots of quintic equation. Sylvester took the functions of the coefficients that serve to decide the reality of the roots, and treated them as coordinates of a point in n-dimensional space. A point is or is not "facultative" according to whether there correspons, or fail to correspond, an equation with real coefficients. The character of the roots depends on the bounding surface or surfaces of the facultative regions, and on a single surface depending on the "discriminant."(DSB XIII, p. 219).

Weimar, Landes=Industrie=Comptoirs, 1807. Unbound, but stitched. XXXII,488 pp., 1 large folded engraved map. Some brownspots to map and with two tears, no loss. A few scattered brownspots. First German edition of "Voyage de la Yerre-Ferme, dans l'Amerique mériodinale, fait pendent les Annnées 1801, 1802, 1803 et 1804. Paris, 1806.". (Bibliothek der neuesten und wichtigsten Reisebeschreibungen...hrsg. von M.C. Sprengel, fortgesetzt von T.F. Ehrmann, 34. Bd.: 1. Theil). Also having the sereis titlepage, this with a stamp.- Sabin: 16646.

Amsterdam, Ex officina Elzeviriana, 1636. 12mo. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. Slightly rubbed. Engraved title-page (mounted). (40),411,(43) pp. A few leaves with numbering in margin. Internally clean. "Cette edition, dont le texte a été revue par Dan. Heinsius, est un chef-d'oeuvre typographique, mais laisse malheureusement beaucoup à désirer au point de vue de la correction." (Willems No 450 with a long note).

København & Hørsholm, 1932-54. Small folio. All nine issues in the original printed wrappers. In excellent condition. With numerous maps and plans. "...the maps from the Danish Meteorological Institute. These are remarkable for their information value and because they represent a cooperative international effort to report ice conditions in a systematic way that was sustained over decades." (Florence Fetterer: Piecing together the Arctic's sea ice history back to 1850, in: Carbon Brief). "These charts, created by the Danish Meteorological Institute (DMI), provide observed and inferred sea ice extent for each summer month from 1893 to 1956. From 1893 to 1956, the Danish Meteorological Institute (DMI) created charts of observed and inferred sea ice extent for each summer month. These charts are based on compiled observations of ice conditions reported by a variable network of national organizations, shore-based observers, scientific expeditions, and ships as detailed in each report; in cases where no observations were available, the lead mapmakers extrapolated further ice cover using their knowledge of ice movement." (DMI - Danish Meteorological Institute). The early surveillance of the Arctic Sea Ice has been of immense importance to the development of climate change science. It is the cause of the determination of global warming and the primary proof we have of the deterioration of sea ice, the heating of the oceans and the rice of Arctic temperatures. These seminal charts constitute one of the very most important sources to our understanding of this world-threatening phenomenon. "Over the last three centuries, geographers, oceanographers, geophysicists, glaciologists, climatologists, and geoengineers have shown great interest in Arctic Ocean sea ice extent. Many of these experts envisaged an ice-free Arctic Ocean. This article studies three stages of that narrative: the belief in an ice-free Arctic Ocean, the potential for one, and the threat of one. Eighteenth and nineteenth century interest in accessing navigable polar sea routes energised the belief in an iceless polar sea; an early twentieth century North Hemispheric warm spell combined with mid-century cold war geostrategy to open the potential for drastic sea ice loss; and, most recently, climate models have illuminated the threat of a seasonally ice-free future, igniting widespread concerns about the impact this might have on Earth's natural and physical systems. This long narrative of an ice-free Arctic Ocean can help to explain modern-day scepticism of human-induced environmental change in the far north." (An ice-free Arctic Ocean: history, science, and skepticism).

Uncut, orig. wrappers. No 228 of 980 "sur velin du Marais", a total of 1100 copies. With 44 fine coloured etchings by Laborde (enlumineur J. Saudé).

Paris, Crochard, 1834. No wrappers, as extracted from: "Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago.", tome 56, pp.1-150. With titlepage to vol. 56. Titlepage with some browning to corners and some brownspots. Text with scattered brownnspots. First printing of this milestone paper in organic chemistry which marks a very importent step toward a complete structural theory of organic chemistry, THE SUBSTITUTION THEORY."In 1834 Dumas presented a long paper, "Recherches de Chimie organique", to the Academy of Sciences in Paris. In this he described chloroform and chloral and explained the mechanism by which chlorine acted upon ethyl alcohol. The paper was published soon afterwards (as offered here) and several years later was reprinted with the addition in the theoretical part of Dumas's theory of metalepsy."(Leicester & Klickstein "A Source Book in Chemistry", p. 320 ff.). - Parkinson "Breakthrough" 1834 C. - Partington IV, pp. 360 ff.

Paris, (Encycopedique de Roret, 1846). 8vo. Contemp. hcalf. Spine richly gilt. 16 pp. and 48 engraved plates with tissue-guards of wich 40 are handcoloured (each with many species depicted). Lower right corner of title-page cut, loosing publishing year and some other letters. Finely repaired. First edition. Atlas-volume alone without the 4 textvolumes, published 1836-46.

(London, Taylor and Francis, 1866). 4to. No wrappers as extracted from "Philosophical Transactions", Vol. 156 - Part I, pp. 381-397. First appearance of a pioneer paper in astronomy in which Huggings relates spectra to brightness of stars and nebulae. "In my former papers, "On the Spectra of some of the Nebulae", and "On the Spectrum of the Great Nebula in Orion", I described the results of a prismatic examination of the light of some of the objects in the heavens which have been classed together under the common denomination of Nebulae. The present paper contains the results of the application of the same method of research, with the same apparatus, to the light of others of the same class of bodies. To these observations with the prism are appended the results of an attempt to determine the intrinsic intensity of the light emitted by some of the nebulae which give a spectrum indicating gaseity." (Huggins in Introduction)."William Huggins (1824-1910), English astronomer, a pioneer in spectroscopy and photography. He examined spectroscopically the chemical constitution of stars and comets, and the gaseous nature of planetary and diffuse nebulae; he applied the Doppler Principle to the measurement of the radial velocities of stars, and published an atlas of representative stellar spectra" (Ripley: Source Book in Astronomy).

(London, W. Nicol, 1922). 4to. No wrappers as extracted from "Philosophical Transactions" 1822 - Part II. Pp. 273-270. Clean and fine. First appearance of a founding paper in the science of alloys."Beyond his work in analytical and pure chemistry, Faraday showed himself to be a pioneer in the application of chemistry to problems of technology. In 1818, together with James Stodart, a cutler, he began a series of experiments on the alloys of steel. Although he was able to produce alloys of superior quality, they were not capable of commercial production because they required the use of such rare metals as platinum, rhodium, and silver. Nevertheless, Faraday demonstrated that the increasingly urgent problem of producing higher-grade steel could be attacked by science. The later work on steel of Henry Sorby, Henry Bessemer, and Robert A. Hadfield was based directly on Faraday's work in the early part of the century."(DSB IV, p. 531-532).

Leipzig, Wilhelm Engelmann, 1897. Lex8vo. Orig. hcalf. Spine gilt and with gilt lettering. Covers with a few scratches. X;483 pp. Stamps to foot of titlepage. Internally fine and clean. First edition. Fechner is noted for the introduction of quantitative methods into psychology (e.g. Fechner's Law). His most importent contribution to statistics is his posthumously published book on the measurements of collectives, his "Kollektivmasslehre" from 1897. The main examples he treated are to be found in anthropology, zoology, botany, meteorology and aesthetics."Fechner's Kollektivmasslehre was of immediate influence on many of his colleagues in Leipzig. The psychologists Gottlob Friedrich Lipps, Wilhelm Wirth and to some extent also Wilhelm Wundt used the new methods in psychophysics. Charles Edward Spearman who obtained his Ph.D. under Wundt extended Fechner's ideas and studied the correlation between magnitudes. The Leipzig astronomer and mathematician Heinrich Bruns (1848-1919) soon gave a general solution to Fechner's problem of a mathematical representation of frequency distributions, the so-called Bruns-series (today called Gram-Charlier series) and tried to unify Fechner's theory of collectives with probability theory. His most illustrious student was Felix Hausdorff who carried this tradition further. (Girlich 1996) Bruns and Hausdorff, however, dropped Fechner's requirement of chance variation of the collective object, thus obscuring any trace of Fechner's indeterminism." (The Encyclopedia sponsored by Statistics and Probability Societies).

Frankfurt am Mayn, Johann Georg Fleischer, 1789. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on top of spine. Spine slightly rubbed. Stamps on first title-page. VIII,246;(6),282 pp. Scattered brownspots and occasional light browning. Poggendorff I, 641.

K., 1846. Ubeskåret i senere blankt omsl. Første og sidste blade noget brunplettet. 114pp. Originaludgave. Himmelstrup 100.

Paris, Morel et Cie,1871. Lex8vo a.Folio. Textvolume: contemp. hcalf. Gilt spine. Gilt lettering. LIX,239 pp. Atlas: portfolio in original printed clothbacked boards. (4) pp. and 12 litographed plates (partly coloured in outline). Light wear to board, corners bumped.

Hauniae, Heineck & Faber, 1772. 4to. Senere hldrbd. (ca. 1850) med rygforgyldning. Indre false itu, således at blokken er gået løs. (8),338 pp. Gl. ejernavne på titelbladet. De første øverste blsdhjørner repareret (uden teksttab). Gennemgående noget brunplettet, her og der med kraftige brugsspor. Originaludgaven af Danmarks første farmakopé. - First edition of the first Danish pharmacopoeia.

Indb. ubeskåret m. orig. for- og bagomsl. i pænt samt. rødt hldrbd. m. sort skindtitelfelt på ryg. Friskt ekspl. Originaludgaven med foromslaget tegnet af Carl Larsson. Zetterlund 51.

Charlottetown, Prince Edward Island, Printed by the Queen's Printer, 1861. Small 8vo. Orig. printed boards, the fragile backstrip preserved, but with afew tears. Some overall browning to leaves and binding. Scarce first edition, and printed on the island, containing description of its geology, flora and fauna, the main industries as fishing etc. - Not in Sabin.

Bruxelles, Muquardt, 1878. 8vo. 2 contemp. hcalf. Gilt spines. Gilt lettering. A paperlabel pasted on spines. Stamp on title-pages. Light wear to edges. XI,(2),415 pp. and Atlas with 19 large folded lithographed plates.

København, Seidelin, 1826 - 1825 - 1826. 8vo. In contemporary half calf. Light wear to extremities and with occassional brownspotting. (6),95, (8),104, (2),70 pp. All three works are among the earliest textbooks on chemistry in Danish. These presentations by Denmark’s three leading chemists were based on lectures organized by the newly founded Society for the Dissemination of Natural Science (Selskabet for Naturenlærens Udbredelse), established in 1824 after the English model, with these three individuals as its central figures. Ørsted’s book is his last on chemical subjects, and this second edition is heavily revised and was sold only to members of the society (at most 200); it was not available in bookstores.

København, Gyldendal, 1879. Orig. komp. blåt helshirtbd. Øverste kapitæl med ganske let slid. Ryg-og sideforgyldning. Velbevaret. Gl. ejernavn på titelbladet. Indvendig ren. Originaludgaven.

Nürnberg, Johann Carl Gerzabeck, 1694. 4to. Contemp. full sprinckled calf. Raised bands, richly blindtooled compartments. Titlelabel. Very light wear to spine ends. Engraved frontispiece. (6),818 pp. + Index (56) pp. Light browning to some leaves. Internally clean. Printed in 2 columns. First edition.

Kiøbenhavn, Thiele, 1777. 4to. Samt. helldrbd. med rig rygforgyldning og forgyldt titeletiket. Kapitæler ganske let slidte. Stempel på titelbladet. Kobberstukket titelvignet. (24),976 pp. samt 1 kobberstukket foldet kort over Danmark i original håndkolorering. Rent frisk eksemplar. Ehrencron-Müller, Holberg bibliografi I,248. - Bibl. Danica II,600.

Kjøbenhavn, Bianco Lunos Bogtrykkeri, 1855. 8vo. Contemporary brown half calf with gilt spine. Wear to hinges and corners. A tear to top of back hinge, but binding tight. Internally nice and clean. (4), 284, (2) pp. Scarce first edition of this historical account of the Danish West Indian islands: St. Croix, St. Thomas, and St. John. It offers an overview of the islands' history and includes a foreword by Bernard V. Petersen. The book is primarily based on John P. Knox: A Historical Account of St. Thomas etc...1852 as a source. Sabin 61222.

Paris, Imprimerie Nationale, 1894-95. folio. Bound in 4 contemp.hcalf. Spines gilt, tome-and titlelabels with gilt lettering. A paperlabel pasted on lower part of spine. Stamp on tiles. 366,1);430;441;318 pp., 58 folded plates and textillustrations.