University of Toronto Press/Institut et Musée Voltaire In-8 Dust jacket in good condition Cloth Toronto and Geneva 1969
Reference : 6194
Fine 508 pages. Handwritten signature on endpaper. Vol. 87 of the Complete Works, volume 3 of Correspondence.
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Correspondence of Nikolai and Aleksandra Romanov t.III. 1914-195./Perepiska Nikolaya i Aleksandry Romanovykh t.III. 1914-195gg./Short description: M.-Ð- ÐПp.ill.·ÐаÑ. 1923. XXXIII, 3, 511, 7 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUbd-5c7133a9506bdffc
Reference : albeff8f9ba16230d72
"Pushkins Works. Correspondence Volume I-III (1815-1826; 1837-1832; 1833-1837) In Russian (ask us if in doubt)/Sochineniya Pushkina. Perepiska Toma I-III (1815-1826; 1837-1832; 1833-1837)SANKTPETERSBURG Edition of the Imperial Academy of Sciences 1906-1911. 394 and 399 and 473c. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalbeff8f9ba16230d72"
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Emperor Alexander III and Empress Maria Fedorovna. Correspondence. 1884-1894 /Imperator Aleksandr III i imperatritsa Mariya Fedorovna. Perepiska. 1884-1894 gody 2nd edition of M. Russkoye slovo 2005. 352 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalb09b29fd44e951292
1971 Kennikat Press Hardcover
William Bentinck and William III (Prince of Orange);: The life of Bentinck Earl of Portland from the Welbeck correspondence, 220 x 142 mm, , hard cover, 433 pp, , very good condition
København, Bianco Lunos Bogtrykkeri, 1918 - 1922. 4to. Uncut unopened in the original printed wrappers. In ""D. Kgl. Danske Vidensk. Selsk. Skrifter, afd., 8, række IV, 1-3"" / ""Mémoires de l'Académie Royale des Sciences et des Lettres de Danemark"". Wrapper with a few minor nicks and tears but otherwise a very fine and clean copy. 118 pp.
Collected offprint-edition of Bohr's seminal work ""On the Quantum Theory of the Line-Spectra"", marking the beginning of the quantum revolution in physics, introduced the concept of quantized energy levels, provided an explanation for the observed line spectra, and served as a foundational model that inspired further developments in quantum mechanics. It is conseidered one of Bohr's most important papers and the basis for his Nobel Prize. These papers give the first clear formulation of his 'correspondence principle' establishing the limit agreement of quantum and classical physics. ""By 1918 Bohr had visualized, at least in outline, the whole theory of atomic phenomena. ... He of course realized that he was still very far from a logically consistent framework wide enough to incorporate both the quantum postulates and those aspects of classical mechanics and electrodynamics that seemed to retain some validity. Nevertheless, he at once started writing up a synthetic exposition of his arguments and of all the evidence upon which they could have any bearing" in testing how well he could summarize what was known, he found occasion to check the soundness of his ideas and to improve their formulation. In the present case, however, he could hardly keep pace with the growth of the subject the paper he had in mind at the beginning developed into a four-part treatise, 'On the Theory of Line Spectra', publication of which dragged over four years without being completed" the first three parts appeared between 1918 and 1922, and the fourth, unfortunately, was never published. Thus, the full impact of Bohr's view remained confined to the small but brilliant circle of his disciples, who indeed managed better than their master to make them more widely known by the prompter publication of their own results"" (D.S.B. 2: 246-47).