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(Berlin, Haude et Spener, 1750). 4to. No wrappers, as issued in "Mémoires de l'Academie Royale des Sciences et Belles-Lettres", 1748, tome IV, Titlepage to the section. a. pp. 324-333. First appearance of this importent paper in which Euler defends Newton's conceptions of space and time against the thesis that space and time are ideal, and motions relative. He outlays his views on the relation between Metaphysics and Mechanics. The truths of mechanics are "so indubitably constant" that they must be founded in the natures of bodies. Metaphysics is the study of the nature of bodies, therefore the laws of Mechanics constrain Metaphysical theories. In fact, any Metaphysical idea or conclusion corresponding to a Mechanical one must agree in all its implications with Mechanics. This applies in particular to space and time. Real, absolute, space and time are assumed by the laws of Mechanics. Therefore, Metaphysical arguments for the unreality of space and time must be unfounded and "hide some parlogism".

London, Longman, Hurst, Rees, Orme, and Brown, 1820. Small 8vo. Contemp. full calf. Raised bands. Richly gilt spine. Titlelabel with gilt lettering. Light wear to spine ends. Gilt borders on covers. Hinges slightly weakening. (1-8) (IX-)XII,LXXIV,240 pp. Woodcut vignettes (bewick ?). Internally clean and fine. Printed dedication-leaf to Walter Scott.

Berlin, Julius Springer, 1927. 4to. Contemp. hcloth. Spine a bit worn. "Die Naturwissenschaften. Hrsg. von Arnold Berliner. 15. jahrgang" XXIV,1000 pp. Einstein paper: pp. 273-276 and 1 portrait of Newton. - Born Paper: pp. 238-242. - Planck paper: 529-531. - Sommerfeld paper 825-832 - von Frisch papers: pp. 321-326 and pp. 963-968. The whole volume offered. All papers in first edition. The Einstein paper is his contribution to the Anniversary volume of Newton's death. - Weil No 158. - Planck: Akademie No. 165 - K. v. Frisch received the Nobel Prize for his works on animal psychology and behaviour in 1975.

Berlin und Stettin, Friedrich Nicolai, 1807. Contemp. hcalf. Gilt spine and titlelabel with gilt lettering. A spot along spine. IV,248 pp. and 5 folded engraved plates. Internally clean and fine. First edition. - Klügel is well known for the doubt that he expressed concerning the apodictic character of the parallel-postulate of Euclid.

Kbh., 1794-98. Indb. i 6 samt. ensartede hldrbd. m. ophøjede bd. på rygge. Ene kapitæl m. lille hak. Bd. m. lidt brugsspor. M. kobberst. titelvignetter, mgl. portrættet. Originaludgave. Bibl.Dan. IV:167.

Paris, 1810. Cont. full calf, richly gilt back. Top and bottom of spine a little worn. Corners bumped.

Paris, Buisson, An VI (1798). 2 contemp. blue boards with titlelabel on back. Edges and back somewhat worn. Stamp on titlepage and verso. Engraved portrait (Franklin). VIII,380,(2);(4),438 pp. Htitles and titles a little browned.

Kbhvn., 1752. Samt. hldrbd. Kapitæl slidt og ryg med brugsspor. Kobberstukket titelvignet. (16),342 pp. + Register og Forklaringer. Her og der brunplettet. Forordet med understregninger i gl. hånd.

Paris, Charles-Antoine Jombert, 1736. 8vo. Contemp. full vellum. 150,(2) pp. and 1 folded engraved plate, many textdiagrams. Leaves somewhat browned. Ozanam's work on the proportional compas - first printed in 1688 - became very popular and successfull and it was lastly printed in 1794."By almost any criterion Ozanam cannot be regarded as a first-rate mathematician, even of his own time. But he had a flair for writing and during his career wrote a number of books, some of which were very popular, passing through many editions."(DSB).

(Paris), Hachette et Cie, 1898. 4to. Orig.full longgrained morocco. Richly gilt on back a.covers. VIII, 390 pp. Richly illustr. with textillustr. a. 19 plts. in Helio gravure.

Romae, 1974. Small folio. Uncut in orig. printed wrappers. Portrait. XCV,1110 pp. Sacra Congregatio pro Causis Sanctorum Officium Historicum 38.

Lancaster and New York, American Institute of Physics, 1956. Lex8vo. Volume 104, November 1, No. 3, 1956 of "The Physical Review", Second Series. In the original printed blue wrappers. A small stain to front wrapper, otherwise a very nice and clean copy. Pp. 975-980. [Entire issue: Pp. 933-1188]. First edition of the important paper in which the Bloch-Torrey equation is first described. H.C. Torrey showed mathematically how the Bloch equations, a set of macroscopic equations that are used to calculate the nuclear magnetization, would change with the addition of diffusion. Torrey modified Bloch's original description from 1946 of transverse magnetization to include diffusion terms and the application of a spatially varying gradient. Today the equation is used in magnetic resonance imaging (MRI), a method that produces images of biological tissues weighted with the local micro-structural characteristics of water diffusion. Diffusion tensor MRI can provide information about connections among brain regions.

Viborg, Mangors Forlag, 1779. Samt. hldrbd. med rygtitlen i skind. Med lettere brugsspor. (16),270 pp. Træskåren titelvignet. Originaltrykket. Anden del har selvstændig titel og omhandler "Støttrupers Historie" af Morten Støttrup Viborg 1779.

London, David Bogue, 1847. Orig. full blindstamped cloth. A few small insignificant tears to spine ends. Tinted lithographed frontispiece. XII,506 pp. Frontispiece and last 3 leaves somewhat brownspotted, otherwise clean and fine. First English edition, published the year after the German first edition.- Tschudi travelled in Peru for 4 years, making his living practicing as doctor. He travelled unexplored regions and brought back with him a large collection of zoological material.

Zerbst, Füchsel, 1808. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on spine. Stamp on title-page. VIII,216 pp., 15 folded engraved plates. The first leaves with some brownspots.

Berlin, Vossischen Buchhandlung, 1792. Unbound, but stitched. X,444 pp. Anburey: pp.(1-)372, 1 (of 2) folded engraved plate. Reise...Bambuk: pp. (373-)398. Howel: pp. (300-)444. The map lacks. Faint dampstain to lower margin of the first 10 leaves. 4 leaves with soiling in lower margin, 4 last leaves with some soiling in lower part. Some scattered brownspots. First German edition of "Travels through the Interior Parts of America. In a series of Letters. By an Officer,...London, 1789.".(Magazin von merkwürdigen neuen Reisebeschreibungen, aus dem fremden Sprachen übersetzt und mit erläuternden Anmerkungen begleitet. Bd. 6). With the series titlepage. - Sabin: 1370.

Berlin, August Rücker, 1830. Cont. marbled boards, gilt back, back lightly rubbed. XXXVIII,442,(2) pp.

Münster, Freidrich Regensberg, 1878. Small 4to. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A small crack in leather at upper compartment. Stamp on title-page. VIII,123,(1) pp., 2 folded engraved maps and 51 lithographed plates. A few minor brownspots.

København., Gyldendal, 1825. Samtidigt hldrbd. med rig rygforgyldning. XVI,578,(5) pp. Rent, frisk eksemplar.

Bruxelles, M.-E. Rampelbergh, n.d. (around 1816). 8vo. Contemp. full calf, foreedges of each board overlapping the foreedge by 3 cm. to protect the the numerous thin vellum tabs. Spine ends a bit worn. Spine gilt and a bit rubbed. Early annotations on inside covers. X,276 pp. and many illustrations of different coins in woodcut. Long vellum tabs attached for easy turn-up. A scarce commercial easy-reckoner for European merchants with attractive woodcuts of current and historic coins.

Napoli, Stephan Manfredi, 1767. 4to. 2 contemp. full vellum. Gilt lettering to spines. Spines a bit rubbed. Small neath repairs to volume two. (24),552;VIII,604 pp. a. 1 folded engraved plate. A few quires a bit browned. Few scattered brownspots.

Berlin, Julius Springer, 1923. 8vo. Contemp. hcloth. A stamp to titlepage. Entire volume 12 of "Zeitschrift für Physik". IV, 380 pp. Entire volume offered). The paper: pp. 342-75. Internally clean and fine. First printing of Bohr's conceptions about atomic structure including electronic orbits and chemical bonds. The paper was written in the months during which element 72 was discovered (first named Hafnia, the Latin name for Copehagen, then Danium, and finally the official name became Hafnium), and in the paper, element 72 is mentioned but not named. This is Bohr's first paper with joint authorship."Element 72 is included, but it is still indicated as unknown. In the second section of the paper a classification is given of the known X-ray spectra of 48 elements, from magnesium to uranium." (Bohr. Collected Works: The periodic system (1920-1923), p. 33).The volume also contains the following paper by Erwin Schrödinger:Über eine bemerkenswerte Eigenschaft der Quantenbahnen eines einzelnen Elektrons. Pp. 13-23

La Haye, Pierre Gosse, 1738. Small 8vo. Bound in 2 contemp. hvellum. Titlelabels with gilt lettering. A paperlabel pasted on spines. Stamp. on titlepages. XVI,170;(4),200 pp. and 14 folded tables. Internally clean and fine, printed on good paper.

Firenze, Bartolomeo Sermartelli, 1574. 4to. No wrappers. (35) pp. Large printers woodcut device at end. 2 large woodcut initials. Clean and fine. First edition of Baldini's funeral sermon on Cosimo Medici (1519-1574). - Adams B:81.

Chicago, University og Chicago Press, (1974). 4to. Nice solid private full cloth. X,306 pp. (Studies in Ancient Oriental Civilization No. 37).