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‎[Pieter Bruegel the elder] - ‎ ‎Leclercq, Suzanne et. al.‎

Reference : 119808

(1995)

‎The world of Bruegel : the Coppée collection and eleven international museums‎

‎Leclercq, Suzanne et. al.: The world of Bruegel : the Coppée collection and eleven international museums. Exhibition: Tokyo, Tobu Museum, 1995. 270 pages, illustration. Paperback. 28x22cms. Text in Japanese & English.‎


‎Text in Japanese & English‎

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‎Le Club des Années 60 - Directeur de la publication et rédacteur en chef : Marc Liozon‎

Reference : 31561

Phone number : 04 78 38 32 46

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‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - ANNOUNCING THE DISCOVERY OF THE ELEMENT GALLIUM.‎

Reference : 47271

(1875)

‎Caractéres chimique et spectroscopiques d'un nouveau métal, le Gallium, découvert dans une blende de la mine de Pierrefitte, vallée d'Argelès (Pyrénées). (Séance du Lundi 20 Septembre 1875). (+) Sur quelques propriétés dy gallium. (Séance du Lundi 6...‎

‎(Paris, Gauthier-Villars), 1875. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 81, No 12 and No 23. Pp. (485-) 508 a. (1065-) 1148. (2 entire issues offered). Boisbaudran's papers: pp. 493-495 a. pp. 1100-1105.‎


‎First printing of the paper in which Boisbaudran announced his discovery of Gallium, together with the first printing of the paper in which he, by a series of experiments proved that Gallium, the metal that he had discovered amd named in honour of France, is a true element. A larger paper on the discovery was published in 1877 in ""Annales de Chimie et Physique"". In 1879 Bausbaudran was awarded the Davy Medal for his discovery of Gallium. ""In 1875 Boisbaudran spectroscopically discovered a new element, gallium, which he found in zinc blende from a mine in Hautes-Pyrénées. Continuing his work in Wurtz’s laboratory in Paris, he was a able to obtain the free metal by electrolysis of a solution of the hydroxide in potassium hydroxide. Gallium, Boisbaudran realized, was the ""eka-aluminum"" predicted by Mendeleev, and was the first of Mendeleev’s predicted elements to be isolated. Boisbaudran’s finding thus provided valuable evidence for the validity of Mendeleev’s periodic classification of the elements.""(DSB).""Lecoq de Boisbaudran announced his discovery (by spectroscopic analysis) of the new element gallium. Mendeleev had first predicted its existence and had named it eka-aluminium. The discovery was made in the author's private laboratory, in a specimen of zinc blende from the Pierrefitte mine in the Angelès Valley in the Hautes Pyrénées. He describes how on the evening of 27 August 1875 he detected the existence of this new element, which he named ""gallium"" in honor of France (Gallia)... A month later he ""performed in Wurtz's laboratory in Paris....a series of experiments to prove that gallium...is a true element""(Weeks). he discusses how he eventually isloated small amounts of pure metallic gallium and determined its physical and chemical properties. The paper (the paper offered) first describes gallium compounds (e.g., ammonium gallium alum,, chloride, oxide, and sulphate).""(Roy G. Neville II, p. 29).‎

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‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - THE DISCOVERY OF SAMARIUM.‎

Reference : 47275

(1879)

‎Nouvelles raies spectrales observées dans des substances extraites de la samarskite.‎

‎(Paris, Gauthier-Villars), 1879. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 88, No 7. Pp. (313-) 352. (Entire issue offered). Boisbaudran's paper: pp. 322-324.‎


‎First apperance of the paper in which Boisbaudran revealed his discovery of a new earth that precipitated had a unique spectrum. De Boisbaudran named it samaria, after the mineral from which it was derived. The mineral samarskite is named for a Russian mining engineer and Chief of Staff - Corps of Mining Engineers, Colonel Vasili Evgrafovich Samarsky-Bykhovets.""Samarium was discovered by French chemist Paul Émile Lecoq de Boisbaudran in 1879. He noticed in his research that impure didymium (praseodymium and neodymium with other impurities), seemed to contain more than just didymium based on spectroscopic work on various rare-earth minerals. When Lecoq de Boisbaudran added ammonium hydroxide to a concentrate prepared from the mineral samarskite he observed a precipitate that formed before the didymium (Weeks and Leicester, 1968, p. 685). Partington ""Breakthroughs"" 1879 C.‎

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‎"LECOQ de BOISBAUDRAN, PAUL ÈMILE. - THE ELEMENT GALLIUM.‎

Reference : 44235

(1877)

‎Sur un nouveau Métal, le Gallium.‎

‎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 10. 576 pp. a. 2 folded engraved plates. (The entire volume offered). Lecoq de Boisbaudran's paper: pp. 100-141 a. 1 handcoloured engraved plate (showing the two spectral lines of gallium).‎


‎First appearance of a milestone paper in chemistry and physics in which the author describes how he found the new element Gallium by analyzing spectral lines which he observed on a Pyrenea blende sample, the emission lines corresponding to the eka-aluminum that was predicted by Mendeleev in 1871 and he subsequently isolated the element by electrolysis. This was the first element discovered by use of the spark spectrum. In his discovery of the new element Boisbaudran was not guided by the predictions of Mendeleev, but only by his own law of spectra.""Boisbaudran ranks with Bunsen, Kirchhoff, and Crookes as one of the founders of the science of spectroscopy.""(Weeks).""Lecoq de Boisbaudran announced his discovery (by spectroscopic analysis) of the new element gallium. Mendeleev had first predicted its existence and had named it eka-aluminium. The discovery was made in the author's private laboratory, in a specimen of zinc blende from the Pierrefitte mine in the Angelès Valley in the Hautes Pyrénées. He describes how on the evening of 27 August 1875 he detected the existence of this new element, which he named ""gallium"" in honor of France (Gallia). The plate shows the two spectral lines of gallium, which are distinct from those of other elements (indium and potassium) in the same region of the spectrum. A month later he ""performed in Wurtz's laboratory in Paris....a series of experiments to prove that gallium...is a true element""(Weeks). he discusses how he eventually isloated small amounts of pure metallic gallium and determined its physical and chemical properties. The paper (the paper offered) first describes gallium compounds (e.g., ammonium gallium alum,, chloride, oxide, and sulphate).""(Roy G. Neville II, p. 29).Partington IV,897. - Weeks p. 215 ff.The volume contains other nptable papers EDMUND BECQUEREL ""Sur l'Observation de la partie infra-rouge du spectre solaire, au moyen des effets de phosphorescence"", pp. 5-12, 8 papers by MARCELLIN BERTHELOT.‎

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‎Le Dantec, Félix :‎

Reference : 4959

(1918)

‎Science et conscience. Philosophie du XXe siècle.‎

‎Paris, Ernest Flammarion (Bibliothèque de Philosophie scientifique), 1918 ; in-12, broché ; 6 ff. , 330 pp.,couverture orange imprimée. ‎


‎Exemplaire en bon état ; dos fendu et petit manque de papier en tête, une bande de scotch contrecollée sur la charnière des pages 324 et 325.La Tradition et la méthode mesuriste ; Physiologie et psychologie ; Science et morale ; L'Art. ‎

Librairie Ancienne Clagahé - Saint Symphorien d’Ozon
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‎ LEECH, John, from the collection of M. PUNCH [PUNCH MAGAZINE]‎

Reference : 3714

(1864)

‎PICTURES OF LIFE & CHARACTER‎

‎ 1864 Bradbury and Evans, London 1864, fourth series. Un album oblong relié demi-chagrin à coins, premier plat illustré, 96 pages illustrées de caricatures. Premier plat partiellement décollé, reliure désassemblée, bon état intérieur.‎


‎ Premier plat partiellement décollé, reliure désassemblée, bon état intérieur. Remises possibles sur les achats en lot, achetez plusieurs objets à la fois ! Reçoit sur rendez-vous pour consultation des ouvrages.‎

Phone number : 06 12 58 45 85

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‎LEENAERTS, Remy J.;‎

Reference : 18328

‎ALGEMEEN GENEALOGISCH - HERALDISCH REPERTORIUM VOOR DE ZUIDELIJKE NEDERLANDEN/ REPERTOIRE GENERAL GENEALOGIQUE ET HERALDIQUE DES PAYS BAS MERIDIONAUX/ GENERAL GENEALOGICAL AND HERALDIC INDEX OF THE SOUTHERN - NETHERLANDS deel I t/m IV,‎

‎, Handzame, Familia et Patria, 1969 -1972, Eerste vier delen van de negen, gebonden in rood leder met titelvignetten op rug, 155 x 240mm., 408 + 424 + 380 + 310pp.‎


‎Zijn in perfecte staat!‎

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‎LEESE, Oliver and Margaret;‎

Reference : 18380

‎DESERT PLANTS - CACTI AND SUCCULENTS IN THE WILD AND IN CULTIVATION,‎

‎, London, Collingridge, 1959, Bound, green cloth with gold impression, frontispice, 140 x 220mm., profound b/w illustration, maps.‎


‎Former owners have tipped in some pictures and an article. Otherwise in good condition.‎

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‎Leeuw, Ronald de / Tilborgh, Louis van (ed.)‎

Reference : 30108

‎Van Gogh Museum Journal 1995.‎

‎Amsterdam, Van Gogh Museum, 1995 Bound, grey cloth with illustr., 223pp., 24x28.5cm., ills. in col. and b/w., good cond. ISBN 9040097968.‎


ERIK TONEN BOOKS - Antwerpen

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‎Lefebvre Gwenaëlle Levavasseur Franck Vidal-Ayrinhac Claire Poncy Michel Collectif‎

Reference : 500074162

(2017)

ISBN : 9782091502656

‎Maxi Annales Bac - Terminale STMG - 2018 (29): 70 sujets corrigés‎

‎NATHAN 2017 432 pages 16 8x23 8x2 6cm. 2017. Broché. 432 pages.‎


‎Très bon état - légères marques de lecture et/ou de stockage mais du reste en très bon état- expédié soigneusement depuis la France‎

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‎Lefin Maxime‎

Reference : 500072534

(2010)

ISBN : 9782896541782

‎RUELLES DE MONTREAL‎

‎BROQUET 2010 27x1 6x27 8cm. 2010. Relié.‎


‎Etat correct‎

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‎Le Flahec Nicolas Bestard Quitterie‎

Reference : 500099578

(2015)

ISBN : 9782820804693

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‎LE FORT, Genevieve;‎

Reference : 16853

‎Lady Alligator Foot emerges from the past. Maize God iconography at Yomop. / Noble Dame Pied d'Alligator merge du pass . Iconographie du dieu du ma s Yomop.‎

‎, Paris, Mermoz, 1985, Pictorial softcover, 215 x 270mm., illustrated in color.‎


‎Bilingual edition. In good condition.‎

ERIK TONEN BOOKS - Antwerpen

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‎Le Gall Pierre Bertone Cédric Maurel Rodolphe‎

Reference : 500096253

(2022)

ISBN : 9782047400203

‎Bordas Vacances - Je rentre en 2de: Révisions de la 3e en 30min/jour‎

‎BORDAS 2022 48 pages 18 7x27 5x0 9cm. 2022. Broché. 48 pages.‎


‎Comme neuf‎

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‎LE GRAS (Pascal).‎

Reference : AWD-773

‎1000.000.000 Kisses.‎

‎Composition en rouge et jaune, acrylique sur papier. Titrée, datée 2011 remix 2020 et signée dans la partie inférieure (24/31,9 cm). Bon état.‎

‎Né en 1962, Pascal Le Gras associe ses travaux à différents groupes de la scène underground : affiches de concerts, pochettes de disques, vidéo-clips, notamment pour The Fall, The Jazz Butcher, Fred Frith, etc. ‎


1000.000.000 Kisses.. LE GRAS (Pascal).
Actualités - Paris
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‎"LEGRAY, GUSTAVE. - THE INVENTION OF THE WAXED-PAPER PROCESS IN PHOTOGRAPHY.‎

Reference : 49595

(1851)

‎Note sur un nouveau mode de préparation du papier photographique négatif. (Séance du Lundi 8 December 1851).‎

‎(Paris, Bachelier), 1851. 4to. Without wrappers. In ""Comptes rendus hebdomadaires des séances de l’Académie des sciences"", Vol. 33, No 23. Pp. (631-) 648. (Entire issue offered). Legray's paper: pp. 643-644. Clean and fine.‎


‎First printing of a landmark paper in photography, introducing his invention of the waxed-paper process.""Gustave Legray brought photograpy on paper to its culmination in the 1850s with the waxed-paper process. A struggling young artist..., Legray abandoned painting for photography around 1848, and with the financial backing of the Comte de Briges opened a portrai studio on the top floor of the same house as the Bisson brothers, in the Madelaine district. His reputation, however, was made not in the field of portraiture but as an architectural and landscape photographer. He also taught photography and ""nearly all renowned photographers of the day have been his pupils"". Legray devoted a good deal of time to experiments and wrote a number of manuals. His invention of the waxed-paper proces dates to before 25 Febr. 1851, but the manipulation was not published until the following December (the paper offered)..... The wxed-paper process was far more than a modification of the calotype, as can be seen from the substances used in oidizing paper - rice water, sugar of milk, iodide of potassium, cyanide of potassium, fluoride of potassium (to which was later added white honey and the white of some egg). Sensitizing was done with an acid solution of nitrate of silver and development took place with gallic acid.... The process took its name from the fact that the paper was waxed before iodizing, instead of merely after exposure, to facilitate printing."" (Helmut E. R. K. Gernsheim). ‎

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‎Le Guillou Jean-Claude‎

Reference : 500091696

(1997)

ISBN : 9782719213995

‎Versailles. Histoire Du Chateau Des Rois‎

‎Editions des Deux Coqs d'or 1997 2x31x23cm. 1997. Broché.‎


‎Bon état‎

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‎(LEHMANN, JOHANN GEORG). - THE HACHURE REPRESENTATION OF MOUNTAINS.‎

Reference : 51120

(1799)

‎Darstellung einer neuen Theorie der Bezeichnung der schiefen Flächen im Grundriß oder der Situationszeichnung der Berge.‎

‎Leipzig, Johann Benjamin Georg Fleischer, 1799. Contemp. hcalf. Gilt spine. Titlelabel with gilt lettering. A paperlabel pasted on top of spine. Stamps on title-page. XX,172 pp. and 4 large folded plates. A few brownspots to the first few leaves.‎


‎Scarce first edition. Here Lehmann standardized the Hachure Representation. Hachures are an older mode of representing relief. They show orientation of slope, and by their thickness and overall density they provide a general sense of steepness. Being non-numeric, they are less useful to a scientific survey than contours, but can successfully communicate quite specific shapes of terrain. They are a form of shading, although different from the one used in shaded maps. - Poggendorffr I, 1410.‎

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‎Lehu Philippe Bestard Quitterie Bissay Marie-Antoinette Schuhmacher Mathilde‎

Reference : 500078525

(2021)

ISBN : 9782820812537

‎Réussite brevet 2022 Français 3e‎

‎RUE DES ECOLES 2021 348 pages 17 1x22 4x2 2cm. 2021. Broché. 348 pages.‎


‎Très bon état - légères marques de lecture et/ou de stockage mais du reste en très bon état- expédié soigneusement depuis la France‎

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‎"LEIBNITZ, GOTTFRIED WILHELM., JOHANN BERNOULLI, JACOB BERNOULLI & ISAAC NEWTON - SOLVING THE BRACHISTOCHRONE PROBLEM.‎

Reference : 45644

(1697)

‎Communicatio suae pariter, duarumque alienarum ad edendum sibi a Dn. Jo. Bernoulli, deinde a Dn Marchione Hospitalio communicatarum solutionum problematici curvae..descensus a Dn. Jo. Bernpulli....propositi solutione... (Leibniz). + Curvatura Radii in...‎

‎Leipzig, Grosse & Gleditsch, 1697. 4to. No wrappers. In: ""Acta Eruditorum Anno MDCXCVII"", No V, May-issue. Pp. 193-240 (entire issue offered). With titlepage to the volume 1697. Leibniz: pp. 201-205. Johann Bernoulli: pp. 206-211. Jacob Bernoulli: pp. 211-214. Newton: pp. 223-224. As usual, some leaves with browning.‎


‎First appearance of the famous issue of Acta Eruditorum in which the 4 solutions by the 4 most eminent mathematicians at the time, were printed together. There were in all 5 solutions to the posed problem, and Newton's solution was first printed in the Philosophical Transactions (January 1697) and reprinted here. The solution proposed by L'Hopital, not printed here, was not published until 1988.The brachistochrone problem was posed by Johann Bernoulli in Acta Eruditorum in June 1696. He introduced the problem as follows: ""I, Johann Bernoulli, address the most brilliant mathematicians in the world. Nothing is more attractive to intelligent people than an honest, challenging problem, whose possible solution will bestow fame and remain as a lasting monument. Following the example set by Pascal, Fermat, etc., I hope to gain the gratitude of the whole scientific community by placing before the finest mathematicians of our time a problem which will test their methods and the strength of their intellect. If someone communicates to me the solution of the proposed problem, I shall publicly declare him worthy of praise."" Johann Bernoulli and Leibniz deliberately tempted Newton with this problem. It is not surprising, given the dispute over the calculus, that Johann Bernoulli had included these words in his challenge:- ....""there are fewer who are likely to solve our excellent problems, aye, fewer even among the very mathematicians who boast that [they]... have wonderfully extended its bounds by means of the golden theorems which (they thought) were known to no one, but which in fact had long previously been published by others.""According to Newton's biographer Conduitt, he solved the problem in an evening after returning home from the Royal Mint. Newton: ... ""in the midst of the hurry of the great recoinage, did not come home till four (in the afternoon) from the Tower very much tired, but did not sleep till he had solved it, which was by four in the morning.""Newton send his solution to his friend Charles Montague and Montague published anonymously in the Transactions. Newton's solution, presented here in the Acta, is also anonymous. The episode did not please Newton, as he later wrote: ""I do not love to be dunned [pestered] and teased by foreigners about mathematical things ..."" After the competition Johann Bernoulli said "".... my elder brother made up the fourth of these (after Leibniz, himself and Newton), that the three great nations, Germany, England and France, each one of their own to unite with myself in such a beautiful search, all finding the same truth.""Struik (Edt.) ""A Source Book in Mathematics, 1200-1800, pp. 391 ff.‎

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‎LEIBNITZ, GOTTFRIED WILHELM. [THE LEIBNIZ CALCULATOR]‎

Reference : 28333

(1735)

‎Theodicaea, Oder Versuch und Abhandlung, Wie der Güte und Gerechtigkeit Gottes, In Ansehung Der Menschlichen Freyheit, und des Ursprungs des Bösen, zu vertheidigen" Aus dem Frantzösischen übersetzt, Bei diesen dritten Auflage an vielen Orten verbesser...‎

‎Hannover, Zu finden bey Nicolai Försters und Sohns sel. Erben, 1735. 8vo. Cont.full vellum w. author and title in old hand on back. Bdg. a bit soiled. Internally a bit of brownspotting., title-page w. professionally repaired tear. Inner front-hinge starting to crack, but bdg. and bookblock tight. Overall a good and fairly well preserved copy. With engr. portrait, woodcut vignettes and one folded engr. plate depicting an early calculating machine. (28), 64, 1030 pp.‎


‎Rare third German edition. Last Richter-edition. First published in French in 1710. It is the only larger philosophical work, Leibnitz himself published and it is a work of immense importance to philosophy, theology and mathematics. In this work Leibniz represents his excellent calculating machine, which has served as the basis for what we now call a computer, as he presents the binary arithmetic, ""Rechnen mit Null und Eins"" (""calculating with zero and one"") in the Beylage (p. 926), which forms the basis for the much later developed computer science (see PMM 177). This work contains ""Anmerkungen"" by Richter and ""Lebens=Beschreibung"" by Fontenelle, followed by ""Beylage"". In these ""Beylage"" we find the method of converting numbers into the binary system, which here is said to be ""etwas recht neues, welches der Herr Leibnitz zu Hanover erfunden"" (""something brand new, which Mr. Leibnitz von Hanover has discovered"") as well as ""Eine Schrift. In welcher klar gezeiget wird/ dass nicht Herr Neuton,sondern der Herr von Leibnitz Erfinder des CALCULI DIFFERENTIALIS sey."" (A Treatise. In which it is clearly shown/ that Mr. Leibniz and not Mr. Newton is the inventor of the CALCULI DIFFERENTIALIS"").All early editions of the Theodicee are rare. See D.S.B.: VIII, pp. 161-166.‎

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‎"LEIBNIZ (LEIBNITZ), G.F. - CHRISTIAAN HUYGENS - JOHANN BERNOULLI - JACOB BERNOULLI ET AL. - THE DISCOVERY OF THE ""CATENARY CURVE"" , THE ""LOGARITHMIC CURVE"" AND THE ""POLAR COORDINATES"".‎

Reference : 41859

(1691)

‎1. De Linea in quam Flexile se pondere proprio curvat, ejeuque usu insignia adinveniendi quotcunque medias proportionales & Logarithmos. - 2. De Solutionibus Problematis Catenarii vel Funicularis in Actis A. 1691, aliisque a Dn. I.B. propositis. (1-2:...‎

‎Leipzig, Grosse & Gleditsch, 1691. 4to. Contemp. full vellum. Faint handwritten title on spine. a small stamp on titlepage. In: ""Acta Eruditorum Anno MDCLXXXXI"". (8),590,(6) pp. and 13 (of 15) folded engraved plates. The 2 first plates lacks, but they do not belong to the papers listed.Leibniz' papers: pp.277-281 a. 1 plate, pp. 435-439. Johann Bernoulli: pp. 274-276 a. 1 plate. Huygens: pp. 281-282. - Jacob Bernoulli: pp. 282-290 a. 1 plate.‎


‎All papers first apperance. All 5 of extreme importence in the development of the Calculus. Leibniz' 2 papers on the catenary curve (paper 1-2 offered here) was written at the instigation of Jacques Bernoulli. Following the example of Blaise Pascal, who had initiated, in 1658, a contest for the construction of the cycloid, Leibniz also provoked the geometers of his time, by challenging them to submit, at the fixed date of mid-1691, their geometric method for the construction of the catenary curve. Leibniz later provided the answer, followed by Johann Bernoulli and Huygens.'These two papers are a historical account of the origin of the study of this transcendental curve, and, at the same time, the first physical-geometric construction showing the species-relationship between the catenary and the logarithmic curves, as two companion curves" one arithmetic, the other geometric. All of the differentials of the catenary curve, are arithmetic means of corresponding differentials of the logarithmic curve" and, all of the differentials of the logarithmic curve, are geometric means of the catenary.'""The Catenary is the form of a hanging fully flexible rope or chain (the name comes from ""catena"", which means 'chain'), suspended on two points. The interest in this curve originated with Galileo, who thought that is was a parabola. Young Christiaan Huygens proved in 1646 that this cannot be the case. What the actual form was remained an open question till 1691, when Leibniz, Johann Bernoulli and the then much older Huygens sent solutions to the problem to the ""Acta"" (Jakob Bernoulli, 1690, Johann Bernoulli 1691, Huygens 1691 and Leibniz 1691), - these 4 1691-papers offered here - in which the previous year Jakob Bernoulli had challenged mathematicians to solve it. As published, the solutions did not reveal the methods, but through later publications of manuscripts these methods have been known. Huygens applied with great ( paper 4) virtuosity the by then classical methods of 17th century infinitesimal mathematics, and he needed all his ingenuity to reach a satisfactory solution. Leibniz ( the papers 1-2) and Bernoulli (paper 3), applying the new Calculus, found the solutions in a much direct way. In fact, the catenary was a test-case between the old and the new style in the study of curves, and only because the champion of the old style was a giant like Huygens, the test-case can formally be considered as ending in a draw."" (Grattan-Guiness in ""From the Calculus to Set Theory, 1630-1910."").The paper by JACOB BERNOULLI ( no. 5 offered here) is a milestone papers as it marks the invention of the ""SYSTEM OF POLAR COORDINATES"" with points located by reference to a fixed point and a line through that point. Although newton had earlier also devised such a coordinate system (in 1671), his work was not known, so that the credit for the discovery generally goes to Bernoulli. (Parkinson, Breakthroughs (1691).Further papers contained in this volume of Acta Eruditorum:DENYS PAPIN: Mecanicorum de Viribus Motricibus sententia, asserta a D. Papino adversius C.G.G. L. (Leibniz) objectiones. pp. 6-13. The plate lacks. - and Dion. Papini Observationes quaedam circa materias ad Hydraulicam spectantes. Pp. 208-213 a. 1 plate. This importent paper is part of the LEIBNIZ-PAPIN-CONTROVERSY.JACOB BERNOULLI: Specimen Calculi Differentialis in dimensione Parabolæ helicoidis, ubi de flexuris curvarum in genere, carundem evolutionibus. Pp. 13-22. The plate lacks. - and J.B. Demonstratio Centri Oscillationis ex Natura Vectis, reperta occassione eorum, quæ super hac materia in Historia Literaria Roterodamensi recensentur, articulo...Pp.317-321.LEIBNIZ: O.V.E. Additio ad Schediasma de Medii Resistentia publicatum in Actis mensis Febr. 1889. Pp. 177-178. and O.V.E. Quadratura Arithmetica Communis Sectionum Conicarum quæ centrum babent,...Pp. 178-182 a. 1 plate.TSCHIRNHAUS: Singularia Effecta Vitri Caustici bipedalis, quod omnia magno sumtu hactenus constructa specula ustoria virtute superat, per D.T. Pp. 517-520‎

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‎"LEIBNIZ (LEIBNITZ), G.F. - JOHANN BERNOULLI - JAKOB BERNOUILLI. - CHRISTIAAN HUYGENS ET AL. - INTRODUCING THE LEMNISCATE CURVE.‎

Reference : 41704

(1694)

‎1. Nova Calculi Differentialis. Applicatio & usus, ad multiplicem linearum constructionem, ex data tangentium conditione. 2. Constructio Propria Problematiis de Curva Isochrona Paracentrica....& de constructione linearum transcendentium, una maxima ge...‎

‎Leipzig, Grosse & Gleditsch, 1694. 4to. Contemp. full vellum. Faint handwritten title on spine. a small stamp on titlepage. In: ""Acta Eruditorum Anno MDCXCIV"". (2),518 pp.. and 11 folded engraved plates. As usual with various browning to leaves and plates. The entire volume offered. Leibniz's papers: pp. 311-316, pp. 364-375. - Johann Bernoulli's papers: pp. 200-206, pp. 394-99, pp. 435-437, pp. 437-441. - Huygen's papers: pp. 338, pp. 339-41. - Jakob Bernoulli's papers: pp. 262-276, pp. 276-280, pp. 336-338, pp. 391-400. Some mispaginations.‎


‎All papers first appearance, dealing with, and clarifying the problems and the new applications of Leibniz' inventions of the differential- and integral calculus.In the papers Leibniz shows how to reduce linear first order ordinary differential equations to quadratures. I the other paper he gives a general method of finding the envelope of a family of curves, which helped to spread the theory of plane curves.In the groundbreaking paper offered here, Jakob Bernoulli introduces THE LEMNISCATE, a symmetric self-intersecting curve resembling a figure eight and defined by the condition that the product of the distance of anay point on the curve from two fixed points is (d/2)2, where d is the distance between the fixed points.""Jacob Bernoulli was fascinated by curves and the calculus, and one curve bears his name - the ""lemniscate of Bernoulli"", given by the polar equation r2=a cos 2""0"". The curve was described in the Acta Eruditorum of 1694 as resembling a figure eight or a knotted ribbon (lemniscus). However the curve that most caught his fancy was the logarithmic spiral....he swowed that it had several strioking properties not noted before...it is easy to appreciate the feeling that led Bernoulli to request that the ""spira mirabils"" be engraved on his tombstone together with the inscription ""Eadem mutata resurgo"" (Though changed, I arise again the same)."" (Boyer in his History of Mathematics).‎

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‎"LEIBNIZ (LEIBNITZ), G.F. - THE APPEARANCE OF THE THEORY OF NORDIC ISRAELISM OR NORSE ISRAELISM.‎

Reference : 46424

(1700)

‎Accessiones Historicae quibus potissimum continentur Scriptores Rerum Garmanicarum, & aliorum, hactenus inediti sequentes. Tom. I-II. Tom. I: 1. Chronographus Saxo. 2. Joh. Vito Durani Chronicon. 3. Gesta Trevirorum. 4. Vetus Chronicon Holsatiæ. (Tom....‎

‎Hannover, Nicolai Förster, 1700 - Leipzig, Nicolai Förster, 1698. 4to. Contemp. full calf. Raised bands, richly gilt spine. (16),315,40,124,119 pp. Tome 2: (12),292,592 pp. First titlepage and Praefatio (16) leaves a bit browned, otherwise clean with only a few scattered brownspots. Some neath marginal notes in 2 contemporary hands.‎


‎Second edition of volume one, and first edition of volume two. In the 15 century chronicle ""Vetus Chronicon Holsatiae"", first printed here by Leibnitz, states, that the Danes were of the Tribe of Dan, while the Jutes the Jews. This is the first announcement of the theory later called Nordic Israelism or Norse Israelism. ""It is the belief that Scandinavian peoples, or the Nordic countries (Denmark, Faroe Islands, Finland, Iceland, Norway, Sweden) descend from the Ten Lost Tribes of Israel. Although there is evidence of such a belief from literature during the Early Modern Period, Nordic Israelism as a movement and ideology only emerged in the latter half of the 19th century among several early proponents of British Israelism.""(Wikipedia).Ravier: 49 (tome I), 44 (Tome II, but Ravier is not clear on this point) ‎

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