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(Paris, Gauthier-Villars), 1894. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 118, No 25. Pp. (1371-) 1442. (Entire issue offered). Le Chatelier's paper: pp. 1401-1411. First printing of the milestone paper in which Stieltjes introduced the "Stieltjes Integral". He is often called "the father of the analytic theory of continued fractions" for his work in this area. "On 18 June 1894 he published Recherches sur les fractions continues in Comptes Rendus de l'Académie des Sciences. A fuller version of this work appeared in the Annales de la Faculté des Sciences de Toulouse." The integral which he introduced here while solving the moment problem, that is, given the moments of all orders of a body, find the distribution of its mass.".... a mathematical milestone. The work represents the first general treatment of continued fractions as part of complex analytic function theory; previously, only special cases had been considered." (Encyclopaedia Britannica).Parkinson "Breakthroughs" 1894 M.

Kjøbenhavn, Schultz, 1814-16. Indbundet ensartet i 4 nyere smukke hldrbd. med ophøjede bind, rygforgyldning, forgyldte skindtitler samt blinsdtrykte dekorationer i alle rygfelter. Med det kobberstukne portræt af Ewald, tegnet og stukket af C.F. Clemens, samt alle 21 kobberstukne plancher. Med de "anstødelige" 6 kobbere til første bind af Abildgaard, resten af Chodowiecki. Flot rent og velbevaret eksemplar på skrivepapir.

(Kiöbenhavn, 1764). 54x43 cm. Kobberstukket grundplan af København indenfor Voldene, visende bebyggelsen i 1764. Med spor efter foldning, men iøvrigt ren og frisk, trykt på svært skrivepapir Grundplanen udkom i Pontoppidan's "Danske Atlas" Tome II, 1764.

Kastellet, Roskilde, 26.12.1909. 2 sider lille 4to, tæt skrevet. W.omtaler "2x2", som "siges at have ni liv ligesom Kattene." Derudover nævner han Æstrup og "stolte anmeldelser", samt evt."Reklamehæfte". Han skriver:"Ærtehalm - ja, Arierne slog det jo sønder og sammen. Publikum morede sig storartet, sage man...Finder De den ikke ganske underholdende? Sidste Akt er mest virkningsfuldt. Men Iscenesættelsen slog den i Fisk..." Etc., etc.

Odense, 1823. Ubeskåret i samt. mønstret papbd. m. skindtitelfelt på forperm. Litograferet titelblad. Originaludgave. Bertelsen 8.

Paris, Michel Brunet, 1702. Small 8vo. 2 contemp. full calf. Raised bands. Richly gilt spines. Light wear to top of spines. Stamp on title-pages. (52),449,(3);(2),435 pp. Clean and fine.

Schleswig, J.G. Röhss, 1798-1800. 8vo. 4 cont. hcalf. Richly gilt backs. Title-and tome labels in leather, gilt. Backs rubbed. Taperepair to top of spine on one volume. Stamps on titles. X;438;XXIV,852;LIV,717,(78);XXIV,534 pp. With 3 (of 4) folded engraved plans and 17 large folded engraved maps and plans.

Dresden, Waltherischen Hofbuchhandlung, 1789. Contemp. full calf. Titlelabel with gilt lettering. Spine gilt. Slightly rubbed. Stamp on title-page. (4),508,(8) pp., 7 folded engraved plates. The last 4 leaves a bit dampstained.

London, Harrison and Sons, 1898. 8vo. Later full blue buckram. Spine with gilt lettering. In: "Proceedings of the Royal Society of London", Vol. LXII. VIII,458 pp. a. 6 plates. Pearson's paper: pp. 386-417. First appearance of this importent paper in which Pearson, expressed what he christened "Galton’s Law of Ancestral Heredity" in the form of a multiple regression equation of offspring on midparental ancestry. It is a statistical formulation of Galton’s law in the form of a multiple regression of offspring on "midparental" ancestry, with deductions therefrom of theoretical values for various regression and correlation coefficients between kin, and comparisons of such theoretical values with values derived from observational material. (DSB).The title "Contributions to the Mathematical Theory of Evolution" or "Mathematical Contributions. . ." was used as the general title of 17 memoirs, numbered II through XIX, published in the Philosophical Transactions or as Drapers’ Company Research Memoirs, and of 8 unnumbered papers published in the Proceedings of he Royal Society "Mathematical" became and remained the initial word from III(1896)on.

Paris, Garnier Freres, 1870-73. Bound in 4 uniform contemp.hcalf., spines gilt, title-and tomelabels. One label with some loss of letters. The first volume having a dampstain in lower margin of leaves. Otherwise clean and fine.

London, R.H. Laurie, 1821. 8vo. Contemp. clothbacked blue boards. Printed titlelabel on frontcover. stamps on title-page. VI,134 pp., 1 table, textillustrations in woodcut.

Paris, Paul Dupont, 1854. Contemp. hcloth. Titlelabel with gilt lettering. Stamp on title-page. XVI,226,(2) pp., 3 large folded engraved maps.

(Stockholm, F.& G. Beier), 1885. 4to. Orig. printed wrappers (to Acta Mathematica 4:3). Extracted from "Acta Mathematica", Vol. 4. Pp. 201-312. Clean and fine. First appearance of a major paper on differential equations of the first order"...the whole theory of automorphic functions was from the start guided by the idea of integrating linear differential equations with algebraic coefficients. Poincaré simultaneously investigated the local problem of linear differential equation in the neighborhood of an "irregular" singular point, showing for the first time how asymptotic developments could be obtained for the integrals. A little later (1884, the paper offered) he took up the question, also started by I.L. Fuchs, of the determination of all differential equations of the first order (in the complex domain) algebraic in y and y' and having fixed singular points; his rechearches was to be extended by Picard for equations of the second order, and to lead to the spectacular results of Painlevé and his school at the beginning of the tweentieth century."(DSB).

Leipzig, Joh. Ambrosius Barth, 1819. Without wrappers. In "Annalen der Physik. Herausgegeben von Ludwig Wilhelm Gilbert", Neueste Folge, Bd. 32, Fünftes Stück. (The entire issue offered). Titlepage to vol. 32. Pp. 1-114. Scoresby's paper: pp. 1-58 and 1 folded engraved map "Karte des Groenländischen Meeres" (17x24 cm.). Gilbert Spitzbergen: pp. 59-67, Krusenstein et al.: pp. 67-71. Clean and fine. This issue contains also a paper by E.F.F. Chladni: "Einige Ideen über das Innere Erde", pp. 72-80, in which he set forth the view that the core of the earth is melted iron. - A paper byFaraday: "Ueber das Vestium oder Sirium", pp. 80-92. First German edition.

Kjøbenhavn, (ca. 1730). 4to. Samtidigt hldrbd. Rygforgyldningen svag og ryg med lettere brugsspor. 480,(8);116,(4) pp.

(Paris, L'Imprimerie Royale, 1744). 4to. Without wrappers as extracted from "Histoire de L'Academie Royale des Sciences", L'Annee 1744, pp. 191-238 and 2 folded engraved plates. First edition. "The Abbé La Caille was an immensssely industrious observational astronomer whose career was climaxed by a scintific expedition to Cape of Good Hope; his studies here made him "the father of of southern astronomy", and his names for fourteen southern constellations remain as his most enduring monumnt." His results in measuring the parallax of the moon, especially from Cape of Good Hope - provided an exact computation of the earth-moon distance - indicating a distance to the moon of about 60 times the earth's radius.

København, Schultz, 1827. 8vo. Uncut in the original blank blue wrapper (back one missing). Upper half of spine missing. Ownership signature to title page. Waterstains to the first few leaves. Contemporary underlinings in text. Handwritten note to inside of front wrapper: "Foræret / af / Professor Rask / d. 10e August 1828" (Given by Professor Rask 10 August 1828). First edition of Rask's 'Italian Morphology', presumably given by Rask to an unknown recipient. Hjelmslev I, 101.

København, 1928. Indb. ubesk. m. orig. for- og bagomsl. i pænt samt. sort hldrbd. m. titel i guld på ryg og enkelte forgyldte stregbordurer på permer. (Johs. Christensen). Bd. m. lidt brugsspor. Lille udbedret revne i foromsl, intet tab, ellers indvendig helt ren og frisk. Originaludgaven af Kaj Munks første skuespil, -hans anden publikation, som altid har været yderst sjælden. Den første opføring af stykket blev en kæmpe fiasko grundet forkerte dispositioner fra teatrets side, -i anden ombæring fik stykket meget stor succes, og anden udgave af skuespillet tryktes i forbindelse hermed i 1938.

Berlin, Julius Springer, 1926. 4to. Contemp. hcloth. Some wear to binding. "Die Naturwisenschaften. Hrsg. von Arnold Berliner. Vierzehnter Jahrgang". XXVIII,1286,44 pp. Einstein papers: pp. 223-224 and 300-301. Bohr paper pp. 1-10. The whole volume offred. All 3 papers in first edition. - Weil Nos 150;154.

København, Poppske Bogtrykkeri, 1826. Samtidigt marmoreret papbd. Rygforgyldning og forgyldt rygtitel. Rygpapiret med et par småskader. (2),16, 339,(1) pp. Med en planche, kobberstukket facsimile.

Kbhvn., Gyldendal, 1815. Ubeskåret i orig. hollanderet papbd. Forperm løs. Lettere brunplettet. XII,312 pp.

Berlin, 1900. Lex8vo. Orig.pict.cloth. XXIV,363 pp.

Leipzig, B.G. Teubner, 1846. Small 4to. Contemp. hcalf, raised bands, gilt spine. Frontispiece. (2),464 pp. Profusely illustrated with plates and textillustr. in woodcut by Grandville. Internally clean and fine.

Kjøbenhavn, C. A. Reitzels Forlag, 1837. Indbundet i et samtidigt halvlæderbind med rygforgyldning. Forgyldt rygtitel. Fire ophøjede bind på ryg. Øverste to centimeter af ryggen mangler. Ryggen falmet. False en smule slidte. Titelblad brunet, med slid i hjørnerne og forstærket i indre margin. Noget brunet i kanterne. Mangler smudstitelbladene. Originaludgaven. BFN 308.Eksemplaret har tilhørt Eiler Høeg og bærer hans exlibris samt navnetræk på smudstitelbladet og titelbladet.

Berlin, Hempel, 1857-61. Lex8vo. 3 contemp. hcalf. Gilt spines. gilt lettering. Spines a bit rubbed. Stamp on title-pages. Chromolithographed frontispiece. IX,870;XVIII,1130;XV,1341 pp. many lithographed maps, plates and facsimile. Volume one with traces of use.