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Kiøbenhavn, Thomas Borup, 1764. 8vo. I samtidigt hellæderbind med fire ophøjede bind på ryg. Ryg med forgyldt titel og ornamentik Ryg med slitage, ellers pænt eksemplar. (24), 182 pp. Opfølgeren til de folkelige lægebøger Den Filosofiske Læge og Den filosofiske Apotheker (1758 & 1764).Bibl. Dan. I, 801.

Leiden, ex Officina Abraham Commelini, 1646. 4to. 18th century half calf, spine and boards with signs of wear. Engraved titlepage torn at right edge with loss of paper. (16], 996, [56] pp. Index pages with tears and loss of text. Old Danish inscriptions on flyleaf.

N.Y., 1966. Large 4to. 2 orig. full cloth. Frontisp-portr., LVI pp., 431 fine colourplates, each with descriptive text. Fine and clean.

Copenhagen, Reitzel, 1910. Uncut in orig. printed wrappers. 473 pp., 15 plates. (Meddelelser om Grønland, Bd. 34).

(Paris, Gauthier-Villars), 1886. 4to. No wrappers. In: "Comptes Rendus hebdomadaires des Séances de L'Academie des Sciences", Tome 102, No 18. Pp. (991-) 1041. (Entire issue offered). The papers: pp. 1003-1004 a. 1005-1006. First apperance of the papers in which Lecoc de Boisbaudran described how he separated Holmium into two kinds of earths and naming them."He accomplished this by fractional prepicitation, first with ammonium hydroxide and then with a saturated solution of potassium sulfate, and found that the constituents of pure holmium solutions precipitate in the folloeing order: terbium, dysprosium, holmium, and erbium. Lecog de Boisbaudran never had an abundant supply of raw materials for his remarkable researches on the rare earths, and he once confided to professor Urbain that most of his fractionations had been carried on on the marble slab of his fireplace."(Weeks "Discovery of the Eelements").Parkinson "Breakthroughs", 1886 C.

Berlin, Julius Springer, 1923. 8vo. Entire volume 19 and 20 of "Zeitschrift für Physik" bound in contemporary black half cloth with gilt title to spine. Library stamp to title-page and paper label pasted on to lower part of spine. Minor wear to extremities. A nice and clean copy. Pp. 301-6. [Entire volume: IV, 426 pp.]. First edition.Weil 138; Schilpp-Shields 178.The volume also contains:Meitner, Lise. Ueber eine mögliche Deutung des kontinuierlichen beta-Strahlenspektrums. Pp. 307-321.Pauli, W. Zur Frage der Zuordnung der Komplexstrukturterme in starken und in schwachen äusseren Feldern. Pp. 371-88.

Guernesey, L'Imprimerie de Dumaresq et Mauger, 1826. 8vo. Uncut in orig. printed boards. Spine defective. (14),393 pp. Uncut and clean. On good paper.

Cracovie, Imprimerie de L'Université, 1915. 8vo. In the original printed wrappers. Offprint from "Bulletin de L'Académie des Sciences de Cracovie", Juillet 1915. Very fine and clean, near mint. Pp. (2), 164-178. Offprint issue of Smoluchowski's paper on certain deficiencies of the foundations of the law of entropy and the basic Boltzmann equation of the kinetic theory of gases.

London, William Dawson & Sons Ltd., 1958. Large 4to. 2 orig. full cloth. XX,778 pp. and 198 plates. Fine and clean. (Reproduced and printed photo-litho offset for Wm. Dawson & Sons, Ltd., London 1958).

Kiøbenhavn: Thoring & Coldings Forlag, 1810-1811. 8vo. Indbundet i et lidt slidt samtidigt hldrbd m. rygforgyldning. Skindtitelfelt med forgyldt titel noget slidt. Hjørner stødte. Den tidligere ejers navnetræk på titelbladet er delvist klippet væk, det lille hul restaureret med nyt papir fra verso. Indimellem lidt brunplettet ellers et rent eksemplar. Første danske oversættelse af Die Wahlverwandtschaften (1809). Bibl. Danica IV, 459.First Danish edition of "Die Wahlverwandtschaften".

(Stockholm), René Coeckelberghs Editioner AB, 1987. Folio. 2 originale hldrbd. (sort maroquin). I orig. kassette. Med 169 farveplancher i faksimile. Kommentarbindet: 131 pp. med tekstillustrationer. nr. 55 af 4000 eksemplarer. helt frisk eksemplar.

Paris, Masson et Cie, 1954. Royal8vo. Orig. boards. 1145 pp., richly textillustrated with line-drawings. Clean and fine.

Braunschweig, Vieweg & Sohn, 1916. 8vo. Fine later boards, the orig. printed frontwrapper from the Journal pasted on frontcover. Extract from "Verhandlungen d. deutschen Physikalischen Gesellschaft...18. Jahrgang. Nr. 6/7". pp. 173-177 and 1 textillustr. First edition. - Weil No. 82.

Havniæ, 1839-58. Lex8vo. 2 hldrbd. med rygforgyldning. Rygge med lidt brugsspor. Stålstukket portræt af Müller. XII,1033,XCIX,388 pp. samt 6 stålstukne plancher med runesten m.v. Lettere brunplettet.

(London, Taylor and Francis, 1874). 4to. No wrappers as extracted from "Philosophical Transactions", Vol. 164 - Part II, Pp. 479-494 a. 3 large folded plates in Heliotype of sun-spectra. Textillustr. First printing of this paper in which Lockyer analyses the spectra of the sun, comparing them with the spectra obtained of elements on the earth in order to detect the elements in the solar layers. Lockyer was the first to detect Helium in the sun 1868 (printed 1870), and he was a pioneer in the study of spectrum analysis of the sun. "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).

(Paris, Bachelier), 1847. 4to. Without wrappers. In "Comptes rendus hebdomadaires des séances de l’Académie des sciences", Vol. 24, No 26. Pp. (1117-) 1160. (Entire issue offered). Cauchy's paper: pp. 1120-1130. First apperance of this impiortent paper in which Cauchy presents his theory of algebraic equivalences where imaginary numbers were regarded as equivalent classes of polynominals with real coefficients modulo (X2 + 1).The paper gave rise to a heated debate in the Academy (see Bruno Belhoste "Augustin-Louis Cauchy. A Biography." pp. 210 ff.)."Augustin Louis Cauchy... objects to the use of complex or imaginary numbers and finds a method of eliminating i (the square root of negative 1) by constructing residues to the modulus X2 + 1. These residues have the formal properties of the complex number system, with x replacing i." (Parkinson "Breakthroughs, 1847 M).

Kjøbenhavn, Seidelin, 1808. 4to. Bound in recent marbled paper covered boards with leather title-label to front board. With light occassional brownspotting throughout. (2), 23 pp. The rare first appearance of Schumacher's work on botanical medicines, which either grow wild or could be cultivated in Denmark, sorted by season of harvest.Heinrich Christian Friedrich Schumacher (1757 - 1830) was a Danish surgeon, botanist and professor of anatomy at the University of Copenhagen. Schumacher made significant research work in malacology and described several taxa.

Hamburg, Hoffmann und Campe, 1840-34. Small 8vo. Bound in 3 fine contemp. hcalf, richly gilt spines. Scattered brownspots, especially part 4.

Kiøbenhavn, Sebastian Popp, 1788. Samtidigt hldrbd. Rygforgyldning. Kapitæler lidt slidte. Ryg med lettere brugsspor. Forgyldt skindtitel. (12),LXXXVIII,297 pp. Kobberstukket frontispiece samt stor kobberstukket foldet grundtegning. Trykt på blåt skrivepapir. Originaludgaven af den første selvstændige beskrivelse af Kalundborg.

(Paris, Crochard, 1823). 8vo. Without wrappers. In 'Annales de Chimie et de Physique', Series 2 - Volume 23, Cahier 4. With halftitle to vol. 23. Pp. 337-444 (entire issue offered). Poisson's paper: pp. 337-352. First appearance of Poisson's importent paper on the mathematical treatment of "specific heats"."In "Sur la chaleur des gaz et des vapeurs," published in August 1823 in Annales de chimie et de physique, Poisson developed ideas published four months before by Laplace in Book XII of Mécanique céleste. Poisson introduced all the precautions needed to render the confused notion of quantity of heat susceptible to mathematical analysis. He called quantity of heat the magnitude that characterizes the transition of a given mass of gas from an arbitrary initial state of temperature and pressure to another state. This definition makes more abstract the quantitative aspect that naturally follows from the concept of heat as a caloric fluid. Poisson could thus deal comfortably with this magnitude, since for him it is simply a function q of p, p, and ø (pressure, density, and temperature). The equation of state p= ap(1+aø) was already classic, and the growing acceptance of the notions of specific heats, at constant pressure and constant volume, allowed him to write the simple partial differential equation of which should be the integral. He also showed that independently of any additional hypothesis, and whatever the arbitray function used in the integration, the adiabatic transformations (the term did not yet exist) correspond to the formulas p · py = constant and (?+266.67)·p1y= constant, y being the ratio of the specific heats, assumed constant."(DSB).

Kbhvn., 1944-45. 4to. 4 orig. hldrbd. En smule slid ved kapitæler på bd. 1. Rigt illustr.

Paris, Bachelier, 1839. Contemp. hcalf. Gilt spine with gilt lettering. A paperlabel pasted on upper part of spine. Stamps on title-page. (4),XVI,432 pp. Internally clean and fine. First Paris-edition. "His Théorie de la machine à vapeur, which went through several editions and translations, had a fundamental and mathematical approach such as might be expected from an applied physicist rather than a practical engineer. As late as 1876 the work was authoritatively referred to as "the most celebrated treatise of Pambour ... published in 1844, then far superior to other works and still in many respects one of the best standards on the subject." In his definitive treatise, R. H. Thurston frequently refers to Pambour’s work in the highest terms. He points out that much of his original work has been "demonstrated anew by a certain number of modern writers who appear to ignore the works of Pambour." (DSB).

Koph., 1827. Later hcalf. St.o.t. 416, (1) pp.

Milano, Bettoni, 1826. 8vo. 3 cont. longgrained morocco, gilt backs, red titlelabels. VII,494,(1),434,(1),400 pp. Very slightly brownspotted.

(Paris, Jean Boudot, 1709 a. 1711). 4to. Without wrappers. Extracted from "Mémoires de l'Academie des Sciences. Année 1708" and Annèe 1709. Pp. 339-365 a. 1 folded engraved plate + pp. 320-350 a. 1 folded engraved plate. First printing of two importent papers in the further development of Cartesian analytical geometry."The irrepressible Michel lRolle...in the Memoires of the Academie des Sciences for 1708-1709 (the papers offered), raised doubts about the correctness of the Cartesian graphical solution of equations, as he had about the validity of the calculus of L'Hospital. He pointed out that to solve f(x)= 0, one arbitrarily chooses a curve g(x,y) = 0, and, on combining it with f(x) = 0, one obtains new curves h(x,y) = 0, the intersection of which with g(x,y) = 0 furnish the solution of f(x) = 0; and he realized that in this way extraneous solutions may be introduced. Imaginary branches further comp0licated the problem, and although Rolle sawthe difficulties, he was unable to solve them."(Boyer "History of Analytical Geometry", p. 155).