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Tübingen, Cotta'schen Buchhandlung, 1803. 8vo. Uncut in the original wrappers. Most of spine-paper missing, but cords tight. Internally nice and clean, and with a few light pencilmarks. Old owner's name to title-page (dated 1900). IV, 326, (1) pp. First edition of Schelling's important treatise, in which he in 14 lectures put forward his thoughts about the academic education in the differenrt subjects at the universities. He also gives a synopsis of his own philosophy. Friedrich Wilhelm Joseph von Schelling (1775 - 1854), German philosopher and educator and a major figure of German idealism in the post-Kantian development in German philosophy. Living in Tübingen he became a friend of Hegel and Hölderlin. During his professorship at Jena in 1798 he was in close contact with leading figures of Romanticism and was also co-editor with Hegel of the Critical Journal of Philosophy. "Vorlesungen über die Methode des akademischen Studiums" is Schelling's Encyclopedia of philosophical sciences, according to which philosophy is the presupposition for all the special sciences. In it he argues that the task of the university is to properly hold the balancing relationship between the absolute knowledge and special knowledge.Schelling's lectures from 1803 give no didactic statements, but discuss, justify and emphasize the role and importance of the methodical scientific thinking for the free and general social education. Wilhelm Von Humboldt's model concerning education, Prussian education system, which is based on the idea of freedom and the principle of unity, instituted compulsory attendance, specific training for teachers, national testing for all students, national curriculum set for each grade and mandatory kindergarten, is large built upon Schelling's ideas presented in the present work.

Edinburgh, W. Laing et al., 1818. Bound in 16 uniform contemp. hcalf. Richly gilt spines. Titlelabels with gilt lettering. A few joints starting. Light wear along edges and some spine-ends. Spines slightly rubbed. Some offsetting to title-pages. Engraved portrait as frontispiece (Hume) and engraved portrait (Smollett). Internally fine.

London, Printed by Taylor and Francis - Published by the Author, (1862-) 73. Folio. Papersize 54,5x36,5 cm. Lithographed and fully handcoloured. Feeding baby birds in natural surroundings. J. Gould & H. Richter, del. et lith. - Walter & Cohn Imp. Fine and clean.The plate is accompanied with the original textleaf. (2) pp. This is an original plate from Goulds great work "The Birds of Great Britain", issued between 1862 and 1873. The plates in this work were executed by Gould himself, and a few by J. Wolf, H.C. Richer and Hart. Together with Audubon's plates, the Gould-plates are considered the best bird-art ever produced, AND THE PLATES IN HIS "BIRDS OF GREAT BRITAIN" ARE THE PEAK OF GOULD'S ARTISTIC LIFE. In the foreword Gould stresses the difference from his "Birds of Europe" in the treatment of the illustrations, the inclusion here of the figures of the baby birds and nests, and he comments "Many of the public are quite unaware how the colouring of these large plates is accomplished; and not a few believe that they are produced by some mechanical process or by chromo-lithography. This, however is not the case; every sky with its varied tints and every feather of each bird were coloured by hand; and when it is considered that nearly two hundred and eighty thousand illustrations in the present work have been so treated, it will most likely cause some astonishment to those who give the subject a thought.". Elsewhere he remarked upon employing "almost all colourists in London." - Wood p. 364. - Nissen No. 372. - Sitwell 102. - Zimmer pp. 261-62. - Not in Jean Anker.

Paris, henri Plon et J. Dumaine, 1858-63. 8vo. Bound in 13 contemp. hcalf, richly gilt spines. One volume lacks a bit of leather on spine. Slightly rubbed. With the bookplate of the Danish king Frederik VII in gilt on all covers. Some scattered brownspots.

Kjøbenhavn, A. Soldin, 1817-20. Lille 8vo. 7 samtidige hldrbd. Rygforgyldning. Titel-og tomefelter forgyldt. Stempel på titelblade. Ca. 3500 pp. Spredte brunpletter. Hvert bind med separat trykt titelblad.

(Paris, Bachelier), 1844 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 18, No 20 a. 21. Pp. (883-) 898 a. pp. (899-) 960. (Entire issues offered). Liouville's papers: pp. 883-885 a. 910-911. First printing of the papers in which Liouville proved the existence of transcendental numbers. "J. Liouville..... invented a method (1844) for constructing any one of an extensive class of transcendental numbers. His numbers were the first to be proved transcendental; Hermite's proof of the transcendence of e ... followed in 1873; F. Lindemnn's for pi in 1882."(Bell "Development of Mathematics", p. 275).Liouville showed that not only are these numbers irrational, they are always transcendental. Thus he was the first to prove the existence of transcendental numbers and also that there were an infinite number of them. Liouville suggested that e was transcendental, and provided the first example of a provably transcendental number, now known as Liouville’s constant.Parkinson "Breakthroughs", 1844 M.

(Paris, Gauthier-Villars), 1901). 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 132, No 17. pp. (1013-) 1080. (Entire issue offered). Lebesgue's paper: pp. 1025-1028. Clean and fine. First printing of Lebesgue's seminal paper on the calculus, which generalized the Riemann integral."Building on the work of others, including that of Emile Borel and Camille Jordan, Lebesgue formulated the theory of measure in 1901 and in his famous paper Sur une generalisation de l'integrale definie, which appeared in the Comptes Rendus on 29 April 1901 (the paper offered), he gave the definition of the Lebesgue integral that generalises the notion of the Riemann integral by extending the concept of the area below a curve to include many discontinuous functions. This generalisation of the Riemann integral revolutionised the integral calculus. Up to the end of the 19th century, mathematical analysis was limited to continuous functions, based largely on the Riemann method of integration. There is a problem here, namely that a function which is not Riemann integrable may be represented as a uniformly bounded series of Riemann integrable functions. What made the new definition important was that Lebesgue was able to recognise in it an analytic tool capable of dealing with - and to a large extent overcoming - the numerous theoretical difficulties that had arisen in connection with Riemann's theory of integration."

Christiania, Gyldendal, 1913. Lille folio. Indbundet i 2 originale helpergamentsbd., rig ryg- og permforgyldning. Indvendige forgyldte stregbordurer. Guldsnit foroven. 139,128 pp. samt talrige pragtfulde plancgher i heliogravure. Teksten trykt på svært bøttepapir. Nr. 126 af 230 eksemplarer. En planche med et par brunpletter i margin, ellers ren og frisk.

(Berlin, Haude et Spener, 1759). 4to. No wrappers, as issued in "Mémoires de l'Academie Royale des Sciences et Belles Lettres", Année 1757, tome XIII, pp. a. 1 engraved plate. First printing of an importent paper in which Euler shows how to manufacture catoptrical telescopes and microscopes in accordance with general rules and founded on his own experiments. - The calculation concerning light ray aberrations, brought about due to the sphericty of the glass, is a masterpiece of analysis of the highest order and he also incorporates the mathematical theory of achromatic combination of lenses, which was first realized by Dollond in the same year, 1757.

Kjøbenhavn, Owe Lynow, 1753. 8vo. Bound in an exquisite contemporary full calf binding with five raised bands and richly gilt spine. Gilt title- and tome labels. Old handwritten library label pasted to top of spine. Few scattered wormholes to spine and boards. Exlibris pasted to inside of front board. Title page with engraved vignette portrait of Vergil. Internally clean. A beautiful copy of Schönau's rare translation of Vergil's Eclogues (Bucolica), being the third translation of Vergil into Danish. The second and third volume, intended to contain the Georgics and the Aeneid, never appeared. Bibl. Dan. IV, 138.

London, Printed by Taylor and Francis - Published by the Author, (1862-) 73. Folio. Papersize 54,5x36,5 cm. Lithographed and fully handcoloured. Two adult in tree. J. Gould & W. Hart, del. et lith. - Walter, Imp. Fine and clean. The plate is accompanied with the original textleaf. (2) pp. This is an original plate from Goulds great work "The Birds of Great Britain", issued between 1862 and 1873. The plates in this work were executed by Gould himself, and a few by J. Wolf, H.C. Richer and Hart. Together with Audubon's plates, the Gould-plates are considered the best bird-art ever produced, AND THE PLATES IN HIS "BIRDS OF GREAT BRITAIN" ARE THE PEAK OF GOULD'S ARTISTIC LIFE. In the foreword Gould stresses the difference from his "Birds of Europe" in the treatment of the illustrations, the inclusion here of the figures of the baby birds and nests, and he comments "Many of the public are quite unaware how the colouring of these large plates is accomplished; and not a few believe that they are produced by some mechanical process or by chromo-lithography. This, however is not the case; every sky with its varied tints and every feather of each bird were coloured by hand; and when it is considered that nearly two hundred and eighty thousand illustrations in the present work have been so treated, it will most likely cause some astonishment to those who give the subject a thought.". Elsewhere he remarked upon employing "almost all colourists in London." - Wood p. 364. - Nissen No. 372. - Sitwell 102. - Zimmer pp. 261-62. - Not in Jean Anker.

Breslau, Meyer, 1772-86. Part 1-8 bound in 2 contemp. hcalf. Titlelabels with gilt lettering. Stamp on title-pages. Part 9 -16 uncut in original stiff papercovers. In all ca. 2000 pp.

København, Gyldendal, 1909. Lex8vo. Orig. komponeret helshirtbd. med rygforgyldning og guldtryk på perm. VI,670 pp. Rigt illustreret, portræt, opklæbede farveplancher, 1 kort. Yderst velbevaret, aldeles lydefrit eksemplar, indvendigt som udvendigt. Originaludgaven.

Paris, Barrois l'aine, (An) 8 (1800-) AN 14 (1806). 2 contemp. hcalf. Gilt spines. Tome-and titlelabels with gilt lettering. Paperlabels pasted on top of spines. Slightly rubbed. Some edgewear. Stamps on title-pages. XII,499,(1);280 pp., 76 large folded engraved plates (40 + 36). Scattered brownspots. Klaus Jordan : 2717 (Ed- 1792-99).

(Kiöbenhavn, Andreas Hartvig Godiche, Ca. 1756). 4to. Samtidigt rødt hellæderbind i maroquin. Ophøjede bind på ryg. Rig rygforgyldning. Forgyldt rygtitel. Bred forgyldt bordure på begge permer. Repareret ved øverste og nederste rygfelt. Letter reparationer ved forreste fals. Helt guldsnit. Forsatspapirer trykt i farver og guld med florale motiver a la gyldenlæder. Stempel på titelbladet. Kobberstukket titelblad i kunstfærdig kalligrafi. 328 pp. + Formularer + Registre. Med fire store kobberstukne vignetter. Indvendig rent frisk eksemplar trykt på SVÆRT skrivepapir. Den sjældne originaludgave af Krigsartikelsbrevet. Udgivelsen blev overgivet til Admiralitetssekretær Chr. Fleicher og kongen bestemmer i privilegiet, "at disse Vores Krigs Artikels Breve skulle trykkes in Qvarto med god læselig Latinsk Stil, Cicero Antiqva kaldet, paa Post-Papir, eller det bædste Skriv-Papir, af saa stor Format, og med saa breed Margine, som det skrevne riginal-Exemplar var forfatted, samt at Alphabetet ej maae komme dem af Publico, som sig det ville tilforhandle, højere Pris at staae, end i de højeste 1 Rdl.)."Birkelund: 113.

Leipzig, Gleditsch & Lanckis, 1751. 4to. No wrappers. In: "Nova Acta Eruditorum, Anno MDCCLI", March- Issue, Pars I-II. Entire issue in 2 parts offered. With titlepage to the volume 1751. Pp. 97-192. Koenig's paper: pp. 125-135 a. pp. 162-176. With 2 engraved plates. Titlepage with 2 stamps and a bit soiled. Leaves as usual a bit browned. First printing of this important paper in which Koenig set forth his "Law of least Action". The law states that the kinetic energy of a system of mass points is equal to the sum of the kinetic energy of the motion of the system relative to the center of gravity and of the kinetic energy of the total mass of the system considered as a whole, which moves as the center of gravity of the system."While still in Franeker, Koenig wrote the draft of his important essay on the principle of least action, which was directed against Maupertuis. The controversy touched off by this work, which was published in March 1751, resulted in perhaps the ugliest of all the famous scientific disputes. Its principal figures were Koenig, Maupertuis, Euler, Frederick II, and Voltaire; and, as is well known, it left an unseemly stain on Euler’s otherwise untarnished escutcheon. The quarrel occupied Koenig’s last years almost completely; moreover, he had been ill for several years before it started. Koenig emerged the moral victor from this affair, in which all the great scientists of Europe—except Maupertuis and Euler—were on his side. The later finding of Kabitz2 testifies to Koenig’s irreproachable character."(DSB).

Barby und Leipzig, Ebers/ Weidmanns Erben, 1770. Bound in 3 contemp. hcalf. Gilt spines. Titlelabels with gilt lettering. Stamps on halftitle and parttitles. (38),1132,(26) pp., 2 folded engraved maps and 6 folded engraved plates. A few leaves with faint dampstaining. Second edition. - Lauridsen II,51. - Sabin, 17413.

Kbhvn., Schultz, 1832. Pastichebind i pap udført i samtidige materialer af blåt karduspapir. (4),XXXII,272 pp. Register (12 pp.) mangler. Med Mansa's litograferede udfoldelige kort over Færøerne (løst indlagt) og 1 farvelitograferet faksimile. Med brede marginer, indvendig ren. Originaludgaven. Oldnordisk og dansk tekst. - Fiske I:149 - Klose No. 5776.

København, 1918. Folio. Ubeskåret i orig. bogtrykte omslag. 58 pp., 66 fotografiske gengivelser (autotypier)af interieurer og exterieurer og 56 opmålingsplancher (flere i farver). Trykt på håndgjort bøttepapir. Nr. 284 af 620 eksemplarer. Originaltrykket af dette pragtværk, som satte nye standarder og mål for dansk bogproduktion. - Værket er tilrettelagt af Aage Rafn hos F. Hendriksen og trykt hos Nielsen & Lydiche med Fransk antikva. - Birkelund:358.

(Paris, Bachelier), 1847. 4to. No wrappers. In "Comptes rendus hebdomadaires des séances de l’Académie des sciences", Vol. 25, No 17. Pp. (561-) 608. (Entire issue offered). Niepce de Saint-Victor's paper: pp. 579-589. First appearance of this milestone paper in the histroy of photography in which Niepce de Saint-Victor describes his invention of photography on glass or "glass negatives"."Early in 1847 Niepce de Saint-Victor experienced with the use of starch paste on his glass plates as a binding substratum for the iodide coating, but he soon found that albumen was preferable; he also tried gelatine, but laid it aside because it came off in the aceto-silver nitrate bath. By a mixture of honey, syrup, or whey with the albumen, he oncreased, later the sensivity. He published his process on October 25, 1847, in the Comp. rend. (the paper offered), and soon had many followers. He also made many modifications (Annexe to the memoir)." (Eder "History of Photography", Dover Publ., pp. 338 ff.).

Royal8vo. 8 fine cont. hcalf. Gilt backs. Engr. portrait of M. in vol. one. Partly unopened, a little brownspotted.

(Washington, 1866). 8vo. Disbound. 28 pp. and 13 large folded lithographed maps (each ca. 52 x 60 cm.). (Letter of the Secretary of the Navy, communicating. 39th Congress, 1st Session - Senate - Ex. Doc. No. 62).

Weisbaden, J. F. Bergman, 1898. Large8vo. Bound uncut with the original wrappers in contemporary half cloth with marbled boards and gilt lettering to spine. Front wrapper partly detached and previous owner's inscription to top of front wrapper. Otherwise a fine and clean copy. XII, 199, (5) pp. First German (and first in general) translation of Pavlov's seminal work on the digestion glands in which he demonstrated that the effects of feeding were transmitted to the gastric glands even when food was prevented from entering the stomach. (One Hundred Books Famous in Medicine 86). "Pavlov summarized his experiments in a series of lectures given in 1896 and published in Russian the following year. A German translation appeared in 1898 and an English one in 1902. For his work on physiology of digestion Pavlov was awarded the Nobel Prize in 1904." (One Hundred Books Famous in Medicine 86). "Scientific Research In the years 1891-1903, Pavlov concentrated on the studies of the digestive system that were systematized in his Lectures on the Work of the Main Gastric Glands (1897) and won him a Nobel Prize in Physiology or Medicine (1904). In this research, Pavlov’s "physiological thinking" was embodied in the "chronic experiment," and his analysis of data was structured by his metaphor of the digestive system as a precise and purposive chemical factory. For the chronic experiment, experimental dogs were prepared surgically with an operation designed to give the experimenter access to a digestive gland. Experiments began only after the dog had recovered and regained a "normal" state. These operations included the esophagotomy, which separated the cavities of the mouth and stomach, allowing Pavlov to use sham-feeding experiments to demonstrate the centrality of a psychic actor, appetite, in the first phase of digestive secretion. To study the second, nervous-chemical phase of digestion, he developed an innervated version of Heidenhain’s isolated stomach. In Pavlov’s isolated sac, the main stomach remained continuous with the digestive tract, but a smaller pouch, isolated from food by a mucous membrane, maintained its nervous connections to the larger stomach. For Pavlov, as a nervist, the innervation of the isolated sac assured that its glandular reactions would mirror those in the main stomach. Inserting a fistula in this small stomach, Pavlov and his co-workers measured the quantity and quality of its glandular secretions, which Pavlov analyzed in his "characteristic secretory curves." For Pavlov, these curves reflected the precise and purposive action of the glands as they processed different foods." (DSB)Bibliotheca Walleriana 7257.

Quedlinburg und Leipzig, Gottfr. Bast, 1832. Contemp. hcalf., spine gilt. A paperlabel pasted on lower part of spine. Stamp on titlepage. IV,84 pp. and 3 large folded engraved plates with many construction-figures. A few scattered brownspots, but fine.