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Paris, Nyon aîne, 1777. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A small nick to spine. Edges rubbed. XXVI,224 pp., 6 folded engraved plates. Faint marginal brownspots. First edition.

(Paris, Gauthier-Villars), 1882. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 94, No 8. Pp. (473-) 548 (entire issue offered). Michelson's paper: pp. 520-523, 1 textillustr. First printing of this importent paper in which Michelson corrected an effect on his inteferometer which he had neglected in his first experiment on the ether drag of 1881."Michelson himself, on presenting in 1882 (the paper offered) an account of his first esperiment to the Academie des Sciences, acknowledged that he had made an error in his earler report of 1881 and had neglected the effect of the earth's motion on the path of light in the inteferometer arm at right angles to the motion" (Holton "Thematic origins of Scientific Thought", p. 265)."

La Haye, Antoine Gibert, 1753. A fine contemp. full calf. raised bands. Richly gilt spine. Titlelabel with gilt lettering. Gilt borders on covers.The monogram of king Christian 7 on red background on upper cover. A paperlabel pasted on lower part of spine. Stamp on title-page.Title-page in red/black. 96 pp., 3 folded tables.

Bremen, Saurmann, 1714. 4to. In a nice contemporary Cambridge-style mirror binding with four raised bands. Small paper-label pasted on to upper part of spine. A few small holes to front board. A nice and clean copy. (6), 1096, (32) pp. + engraved frontispiece. The uncommon first edition of Akersloot’s work on the Apostle Paul.

Kiøbenhavn, Sander & Schrøder, 1776. 8vo. In contemporary half calf. Small paper-label pasted on to top of spine. A nice and clean copy. 222 pp. The rare first edition of Ussing's precursor to his seminal "Kirkeforfatningen i de kongelige danske Stater" (1786-89)

London, Taylor and Francis, 1927. Contemp. full cloth. Stamped in blind on titlepage. In: "The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science", Vol. III, Seventh Series. X,1360 pp., textillustr. and 19 plates. (Entire volume offered). Thomas' paper: pp. 1-22. Internally clean and fine. First printing - in full - of Thomas' paper on electron spin. The Thomas factor gives a correction to the spin-orbit interaction in quantum mechanics, which takes into account the relativistic time dilation between the electron and the nucleus of an atom."In February 1926 the missing factor two was supplied (Nature vol. 117) by Llewellyn Thomas and has since been known as the Thomas factor. Thomas noted that earlier calculations of the precession of the electronic spin had been performed in the rest frame of the electron, without taking into account the precession of the electron orbit around its normal. Inclusion of this relativistic effect reduces the angular velocity of the electron (as seen by the nucleus) by the needed factor 1/2. Einstein was surprised. Pauli became converted." (Pais "Inward Bound", p. 279).

Kjøbenhavn, Johann Jörgen Höpffner, (1749). Folio. (39,5 x 25 cm.). Originalt helldrbd. Ryggen opdelt i ni felter af ophøjede bind. Rigt forgyldt, men overalt er forgyldningen meget svag. Brede forgyldte bordurer på permer med hjørnestempler af kongens monogram. I midten på begge permer Frederik den Femtes store kronede monogram med hans motto "Prudentia et Constantia". Bindet intakt, men med brugsspor. Forsatse fornyet. (12),175 pp. Kobberstukne slutningsvignetter, kobberstukne initialer samt de 4 store kobberstukne illustrationer i teksten afbildende scener og interiører fra højtideligheden. Trykt på svært skrivepapir. Brugsspor i marginer, mest på de første blade. De to portrætter mangler. Originaltrykket af den monumentale Salvingsakt. "Trykt af Johan Jørgen Høpffner med Fraktur i forskellige store Grader. Af Initialerne er en Del kobberstukne, udførte af O.H. de Lode, mens andre er klicherede træsnit eller sammensat af Røskener, og som Begyndelsesvignet til forskellige Afsnit i Akten findes 4 (ca 11 x 14 cm.) store Kobbere afbildende forskellige scener fra Højtideligheden. De er alle tegnet og stukket af O.H. de Lode, der ligeledes har signeret flere af Bogens Rokoko-Slutvignetter." (Birkelund nr. 95).

London, J.M. Dent & Co., 1897. Small 4to. Untrimmed in orig. full cloth. Spine with gilt lettering. Spine slightly rubbed. Stamp on title-page. Coloured frontispiece. XII,371 pp., 2 folded maps, 8 colourplates (incl. frontispiece), and about 100 full-page and textillustrations from photographs and sketches. Internally clean and fine. First edition.

(Paris, G. Masson, 1878). No wrappers. In: "Annales de Chimie et de Physique", 5e Series - Tome 15, Cahier Septembre 1878. Pp. 5-144. (Entire issue offered). Cailletet's paper: pp. 132-144, textillustrations of apparatus used. First appearance of a milestonepaper in chemistry in which Cailletet describes his invention of the liquedifaction-process of oxygen and 5 other gases - and a classic in Low-Temperature Chemistry."Cailletet is most famous for his investigations on the compression and liquefaction of gases. At the time there were still six gases that were considered permanen: oxygen, nitrogen, hydrogen, nitrogen dioxyde, acrbon monooxide, and acetylene. Liquefaction had not been achieved despite the use of what were considered ernomous pressures. At the end of 1877 and the beginning of 1878 Callitet liquefied all these gases shortly before Raoul Pictet, who employed a completely different procedure. Cailletet had, following Andrews, recognized the importence of the critical temperature, above which liquefaction of a gas does not take place. In order to produce the necessary ccoling, he had recourse to expansion, sometimes employing several expansions in a staged process. It was in this manner that he succeeded in liquefying oxygen by beginning with liquid ethylene and passing through the stage of liquid methane."(DSB III, pp. 11-12). Parkinson "Breakthroughs" 1877 C.

Paris, Furne et Cie, 1847. 8 textvols. bound in contemp. hcalf, gilt backs. With some scratches to bindings. Stamp on front free endpapaers. Portraitvolume with 40 fine steel-engraved plates in 4to. and uniformly bound. First edition.

Madrid, Francisco del Hierro, 1749-50. Small 4to. Bound in 5 contemp. hcalf. Gilt spines. Some cracks to one joint. Spines rubbed. Some wear to spineends. In all ca. 2000 pp. Internally clean, printed on good paper.

Kiøbenhavn, Soldin, 1796. Lille8vo. Samtidig hldrbd., marmorerede permer. 46,(2) pp. Lidt spredte brunpletter. Den sjældne originaludgave. "Aristokraternes Catechismus" er en efterligning af P.A. Heibergs købmandskatekismus."Malthe Conrad Bruun var under indflydelse af ateisten Otto Horrebow (se bl.a. hans artikel i Jesus og Fornuften, 1799) og gav her sin samfundssatire og sine voldsomme angreb på adel og enevælde en gudsbespottelig form. Satiren fik biskop Nicolai Edinger Balle til under henvisning til Danske lov (6,4,14) at indberette skriftet til kancelliet. Af frygt for konsekvenserne flygtede Malthe Conrad Bruun."(DBL).

(Sth.,1911-12). Folio. Hldr.-mappe. Med 129 (af 151) uniformsplancher i litografi, heraf 64 i farver, 65 ukol.

(Paris: Gauthier-Villars), 1865. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences", Vol 61, No 13. Pp. (493-) 535. (Entire issue offered). Pasteur's paper: pp. 506-512. First printing of Pasteur's first report on the silkworm disease. Between 1855 and 1865 a widespread epidemic among silk worms called pebrine alarmed the south of France, so much so that finally, in 1865, it drew national attention. In June 1865 the government sent Pasteur down to investigate the disease, and the first report was already finished by the 25th of September, the paper offered. Parkinson "Breakthroughs", 1865 B. - Bunch 1865, Biology.

Edinburgh, A. Constable and Co., 1824. Small 8vo. 2 cont. hcalf. Gilt back. Tome-and titlelabels in leather on backs. Top of spine worn, and a little damage to upper compartment of one volume. XX,379;XII,304,71 pp. and 1 folded engraved map. The map somewhat brownspotted. printed on good paper, internally fine and clean. Sabin No 29718.

Leipzig, Grosse & Gleditsch, 1753. 4to. Contemp. full vellum. Faint handwritten title on spine. Two small stamps on titlepage. In: "Nova Acta Eruditorum Anno MDCCLII". Occassional brownspotting. The entire volume offered. Pp. 466-480. [Entire issue: (6), 720, (26) pp + 6 plates]. First printing of Bose's paper on astronomical observations of the moon. "Bose, a merchant's son, was educated at the University of Leipzig, where he concentrated on philosophy, mathematics, and languages. In 1727 he received the M.A. and joined the philosophy faculty as a junior lecturer (Assessor) in mathematics and physics. In 1738 he accepted the chair of natural philosophy (Naturlehre) at the University of Wittenberg, where he remained until 1760, when the Prussians carried him off to Magdeburg as a hostage of war." (DSB)."The Wittenberg professor Georg Matthias Bose was a main actor in the transformation of electricity from an academic branch of natural investigation into a fashionable amusement. If, during the 1730s, both Stephen Gray at the Royal Society of London and Charles Du Chisternay Dufay at the Académie des Sciences in Paris devoted themselves to the investigation of the electric matter, it was Bose and other "Saxon virtuosi" that, as the Gentleman's Magazineacknowledged in 1745, made electricity a subject à-la-mode, with "princes willing to see this new fire that man produced from himself, and which did not descend from heaven." (Bertucci, Therapeutic Attractions: Early Applications of Electricity to the Art of Healing, P. 271).Many other papers by influential contemporary mathematicians, philosophers and historians are to be found in the present volume.

Weimar, B.F. Voigt, 1850. Contemp. hcalf, gilt spine with gilt lettering. A paperlabel pasted on lower part of spine. Stamp on titlepage. XVI,356 pp., large folded table and 9 folded lithographed plates (on 7). Some brownspots to title, to the first and last few leaves.

No Place, (1707). Folio. Sewn. Later marbled wrappers. 24 pp. Some contemp. corrections and additions. A few brownspots to first and last leaf.

London, Hutchinson & Co., 1908. Royal 8vo. 2 orig. full cloth. Gilt lettering on spines. Top edges gilt. Spine ends and joints slightly frayed. 2 frontispiece portraits in photogravure (the first with nicks at foot, not affecting image). XXIII,496;XX,497-990. Profusely illustrated with plates, textillustrations and maps. Light foxing to a few leaves. Clean and fine. First edition.

(København, 1832-34. Folio. Samtidigt hldrbd. Rifter ved kapitæler. Ryg slidt. Med 68 dobbeltsidede folioplancher i litografi med 961 figurer.

Francfort, Depens de la Compagnie, 1771. Contemp. full calf. Raised bands. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on lower part of spine. XXXII,282,(6) pp., 4 folded tables. weak). Titlelabel with lettering.

Leipzig, Im Industrie-Comptoir, 1825. 8vo. In the original printed wrappers. A few marks to wrappers and internally with light occassional brownspotting. A good copy. (6), 58, (16) pp First appearance of Gustav Fechners' (written under the pseudonym of "Dr. Mises) humorous work on the anatomy of angels. Gustav Theodor Fechner was a German philosopher, physicist, and psychologist who is best known for his work in psychophysics, particularly his theory known as "Fechner's Law." Fechner's Law is a principle that describes the relationship between the physical intensity of a stimulus and the psychological perception of that stimulus.

Zittau und Leipzig, bey dem Verfasser/ Gerhard Fleicher, (ca. 1822) - 1821. 4to-oblong. Bound in one contemp. hcalf. Gilt spine and with gilt lettering. X,81,(1);XII,76;4,80 pp. Scattered faint brownspots. With music.

Paris, Dunod, 1874. Large 4to. Bound in 2 contemp. hcalf. Gilt spines with gilt lettering. A paperlabel pasted on upper part of spines. Stamps on title-pages. (4),207 pp. and 28 lithographed and engraved folio- plates, folded. Light wear to top of spine on plate-volume.

No. place, no date, ca. 1880. Imperial folio. (72 x 49,5 cm.). Contemp. full cloth. Titlelabel with gilt lettering on upper cover. Containing 9 double-folio plates printed in blue, each measuring 70 x 94 cm.