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(Berlin, Haude & Spener, 1770). 4to. No wrappers, as issued in "Memoires de l'Academie Royale des Sciences et Belles-Lettres", tome XXIV, pp. 181-250. Clean and fine. First edition. An importent paper in the Theory of Numbers. The year before Lagrange gave a complete solution to the problem of giving all integral solutions of a special general equation (Sur la Solution des Problemes Indéterminés du Second Degré). In this paper he sets up a simpler proof of the same problem. - Cajori calls Lagrange "One of the greatest mathematicians of all times". - Poggendorff I:1344.

(København, 1754). 4to. In recently blue paper covered card board binding with white paper-label title-label to front board. Previous owner's name to pasted down front end-paper. Annotations to front free end-paper. Without wrappers as issued in "Videnskabernes Selskabs Skrifter", nice and clean copy. Pp. 189-216. First edition of Kraft’s paper on contradictions in traditional theories of matter and composite substances. Kraft argues that the traditional physics and metaphysics is filled with contradictions, particularly regarding the divisibility of matter, the nature of space and time and the structure of reality. He suggests that Leibniz’s theory of monads or a similar concept of fundamental indivisible units provides a more consistent framework for understanding the physical world. The present paper is a fine example of 18th-century Enlightenment debates on the nature of matter, space and time,

Berlin, Copenhaque, De Gruyter & Cie, C.E.C. Gad, 1960. Folio. 2 orig. full cloth with dustjacket. A small tear to first hinge on vol. 1. Titlepage with 2 stamps. 576,(1) pp., profusely illustrated and 1 folded map. Internally clean and fine. Fondation Carlsberg - Copenhagen.

Ystad, Petzold, 1858. Indbundet i et senere meget smukt hldrbd. i flammet kalv med rig rygforgyldning, titel- og forfatteretiket i skind. (Nanna Grönvall, Malmö). (16),336,(2) pp. samt 15 litograferede plancher (på 14, som angivet i "Förteckning"). Den sidste er en stor foldet byplan "Karta öfwer Staden Ystad). de første 6 blade lettere brunplettede. Ellers lidt spredte brunpletter på tekstsider og plancher.

Leipzig, arth, 1899. Contemp. hcalf. Gilt spine with gilt lettering. (8),207,(2) pp. Stamp on foot of title-page and on last page. Inernally fine and clean. First edition of a main work on the the physiology of the nerves in the lower animals. Loeb founded the theory of "tropism" as the basis of the psychology of the lower forms of life and he became the apostle of the mechanistic conceptions in biology.Loeb became one of the most famous scientists in America, widely covered in newspapers and magazines. He was the model for the character of Max Gottlieb in Sinclair Lewis's Pulitzer-winning novel Arrowsmith, the first great work of fiction to idealize and idolize pure science. Mark Twain also wrote an essay titled "Dr. Loeb's Incredible Discovery", which urges the reader not to support a rigid general consensus, but instead be open to new scientific advances.Loeb was nominated many times for the Nobel Prize but never won. - Garrison & Morton: 1428.

Stuttgart, Schweizerbart'sche Verlagsbuchhandlung, 1966. Large 4to. Orig. printed wrappers. 375 pp.,86 plates, textillustr., tables etc. "Palaeontographica. Beiträge zur Naturgeschichte der Vorzeit. Hrsg. von O.H. Schindewolf", Supplement-Band 10.

Paris, Carilian-Goeury, 1830. 4to. Contemp. modest hcloth. Marbled covers. (4),82 pp., Large folded engraved map "Projet d'une Distribition Générale dans L'Intérieur de Paris" (47 x 63 cm.) and 1 folded table. Scattered faint marginal spotting.

(København), 1772. 57x69 cm. Kobberstukket kort over Sydvestsjælland med Store Bælt, Nordlangeland og Østfyn i samtidig håndkolorereing (kystlinjerne og signaturerne). Det første videnskabelige kort over Sydvestsjælland, som en del af Wessels berømte Sjællands-kvartet. Da kortet udkom var det den mest præcise kortprojektion overhovedet, idet Wessel anvendte sin opdagelse vedrørende de komplekse tal. Sjælden i koloreret stand.

Kjøbenhavn, Reitzel, 1916. Orig.bogtrykt omslag. Lidt løs i heftningen. Ubeskåret. Stempel på foromslaget. (6),246,(2) pp., 3 tabeller, tekstillustrationer og 8 foldeplancher i farvelitografi (kort og prospekter). Rent frisk eksemplar. Indeholder de første videnskabelige geografiske og geologiske kort over disse områder. - (Meddelelser om Grønland, Bd. 2. - 2. Oplag).

Paris, 1924-35. Royal8vo. 12 hcalf. Illustr.

Augspurg, Mertz & Meyer, 1757. 8vo. Bound in a beautiful contemporary full calf binding with richly gilt spine. Five raised bands to spine. Insignificant wear to capitals and edges. Exlibris pasted to inside of front board. Internally clean. (8),247,(55) pp. An attractive copy of the second edition of Emanuel Sincerus' edition of Phaedrus' Fables, first published in 1738.

Paris, G. Masson, 1877. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: "Annales de Chimie et de Physique", 5e Series,Tome 12. - 576 pp. a. 1 folded plate. (The entire volume offered). Becquerel's paper: pp. 5-87. First edition of Henri Becquerel's importent study of the magnetic substances in which he sets forth his discovery that "the magnetic rotation of the bodies is connected with their refractive index and with another function that varies with their specific magnetism". For the first time it was showed that there is a connexion between the rotatory power and the magnetic properties of matter.The volume contains other importent papers, more than 10 papers by , MARCELLIN BERTHELOT, mainly on Thermo-Chemistry.

(København), A.H. Godiche, 1766. 46,5 x 55,5 cm. Kobberstukket kort over Fyn og omgivende vande med Tåsinge og en del af Langeland. Stor fin rokokkokartouche. Nederste del af venstre margin lidt tæt beskåret, dog uden tab af billede. Ren og frisk, på svært skrivepapir. Generalkoret over Fyn fra Pontoppidans Danske Atlas, stukket af J. Haas.

Paris, Fortin, Masson et Cie, (1837-) 1844. 2 nice cont. hcalf with gilt backs. XV,360;(4),361-888 pp. and Atlas with 50 handcoloured lithographed plates, 683 textillustr. (Atlas bound with part 1, after preface). printed on fine paper, very clean and fine copy. First edition. Pritzel 5707. - Nissen 1172.

Carlsruhe u. Freiburg, Herder'schen Kunst= und Buchhandlung, 1831. 4to. a. folio-oblong (29 x 48 cm.). 2 contemp. hcalf. Gilt spines. Spines a bit rubbed. Stamp on title-page. (8),XVI,218 pp. Atlas with lithographed title-page and 34 lithographed plates. Scattered brownspots. Klaus Jordan,2441.

Ca. 1920. 23 x 14,5 cm. Signed in pencil, also with the word "privattryck" and "Till min älskade Astrid". Showing a nude girl wearing a straw hat, boots and stockings. Alfred Proessdorf (1882-1925)He was born in Leipzig and was educated in Düsseldorf. He moved to Sweden and Gothenburg. He worked for satirical magazines, such as Sunday-Nisse and Rattle. Images are often elegant and gives a good idea of style in clothes and furnishings.He also worked with graphics, painting and theater decoration. He did the costumes for E. Bauer revues 1919-1923.

Paris, Magimel, Anselin et Pochard, 1819. Bound in 2 contemp. hcalf., gilt spines, title - and tomelabels in leather with gilt lettering. Spines a bit rubbed. (4),CLIV,540;54-1288 pp., The 2 folded plates in xerox-copy. A few scattered brownspots. Stamp on titlepages.

Stockholm, Em. Girons Förlag, 1873. 4to. Samt. hldrbd. med rygforgyldning. Lettere brugsspor ved kapitæler. Bogtrykt titel samt xylograferet titelblad. 19;(4) pp. samt 22 smukke farvelitograferede plancher samt 4 ukolorerede (af kranier). Farveplancherne omfatter både sæler og hvaler. Originaludgaven. "de 22 planscherna med 132 Figurer är tryckta i färglitografi hos Schlachter & Seedorf i Stockholm med förträffligt resultat." (Björn Dal).

(Berlin, Stockholm, 1924-25). 4to. Bound in one full fabrikoid. As issued in "Acta Mathematica", vols 45,46,47. - Pp. 29-127, pp. 102-214 - pp. 238-281. Clean and fine. A very small tear to the last two leaves repaired without loss. First edition of Harald Bohr's main work. Harald Bohr was younger brother to Niels Bohr. "The problem of which function may be represented by Dirichlet series led Bohr to his main achievement, the theory of almost periodic functions, on which the greater part of his later work is concentrated....Whereas hitherto in the theory of Dirichlet series one always worked withh frequencies forming a monotonic sequence, Bohr discovered that in order to obtain an answer to the problem one would have to consider series with quite arbitrary frequencies. The answer was obtained by introducing the notion of almost periocicity. The theory was published in three papers (the offered papers) in "Acta Mathematica", and numerous mathematicians joined in the work on its simplification and extension. Thus Weil and Wiener connected it with the classical theories of integral equations and Fourier integrals, and Bochner developed a summation method for Bohr-Fourier series gneralizing Fejér's theorem." (Børge Jessen in DSB).

Lpz., (1836). Lex8vo. Cont.hcalf. Richly gilt back. Tears in lower part of spine. 240 pp. a. 30 nice steel-engr.plates. St.o.t.

Vasa, 1922-37. Lille 4to. Indbundet i 4 ensartede solide hshirtbd.

Paris, Crochard, 1836. Contemp. hcloth. In: "Annales de Chimie et de Physique, Par MM. Gay-Lussac et Arago.", 2e Series, Tome 66. 448 pp. a. 1 folded engraved plate. (Entire volume offered). Laurent's papers: pp. 136-213 a. pp. 314-335. Some scattered brownspots. First printing of Laurent's long paper in which he tried to develope the rules of substitution into a chemical system oforganic compounds, the "Nucleus theory". Laurent is considered one of the most importent chemists in the 18th centuryHis first theoretical efforts were largely taxonomic in character. He then began to develop a pictorial model based on atomistic representations as considered by earlier French crystallographers. Laurent’s "nucleus theory" or "theory of derived radicals"located every substance at the intersection of two kinds of transformations: substitutions, which operate on the matter inside the fundamental radical and do not affect its general chemical behavior, and external modifications, which influence various chemical functions. (DSB)."In his studies of the derivatives of naphtalene, Laurent was impressed by the fact the the fundamental properties of these compounds remained, in spite of the various substitutions which took place in them. A certain nucleus seemed to impose its properties on all its derivatives. This nucleus theory was the basis for the unitary which was specifically formulated by Gerhardt."(Leicester & Klickstein "A Source Book in Chemistry", p. 345).The volume contains other notable papers by Regnault, D'Arcet, Chevreuil, Rose, Gay-Lussac and Carlo Matteucci's importent memoir "Sur la Propagation du Courant Electriques dans les Liquides", pp. 225-313.

Kiøbenhavn, Neuhoff, 1684. Lille 8vo. Samtidigt grønfarvet helpergament. Forsatse fornyede. (34),262 pp. Også med titelbladet fra 1681 på hvis bagside findes 2 våbenskjolde hhv. Knud Gedde og Elina Catharina Kaas til hvem bogen er tilegnet. På bagsiden af Approbatio et helsides træsnit med afbildning af et ur som der peges på til bønner. Bibl. Dan. I, 426.

Leipzig, Bernh. Christoph Breitkopf, 1739. 8vo. Contemp. full calf. with richly gilt spine. Gilt title label. 5 raised bands. With minor restoration to front board. Minor brownspotting. (16),733,(3) pp. Second printing.

(Paris, no date, ca. 1860). Folio. Contemp. hcalf. Spine a bit rubbed. 264 pp. and many textillustraions. At end 2 folded maps and 1 folded plan. The text is autographed and reproduced in zincography. The work comprises 22 lectures (lecons) on interieur waterbuilding, richly illustrated with drawings.