Die Plancksche Theorie der Strahlung und die Theorie der spezifischen Wärme. (+) Berichtigung zu meiner Arbeit: ""Die Plancksche Theorie der Strahlung etc.""""

Berlin, J.A. Barth, 1907. 8vo. 2 issues, to both the original printed yellow wrappers. No backstrip. Wrappers loose. In: ""Annalen der Physik. Vierte Folge. Band 22"", No. 1. and No. 4. Pp. 1-208, 1 fold. plate a. 1 portrait (P. Curie) a. pp. 609-800, 1 plate. (Entire issues offered). Einsteins paper: pp. 180-190 and p. 800. Astamp to verso of plates and a few leaves. THE PRINTED WRAPPERS LOOSE.

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First printing of a major paper in Quantum Theory, introducing the first systematic introduction of probability factors in Quantum Theory.""From 1905 through 1909 Einstein published five major papers on the hypothesis of energy quanta, its theoretical implications, and its use in the explanation of various phenomena. Among these papers we have his importent paper ""Die Plancksche..."" and in his second paper from 1906d he asserted that Planck's derivation implicitly assumes quantification of the enrgies of charged oscillators. Now (in the paper offered) he returned to this question, showing that, if the structure function in phase space he had introduced earlier is assumed to restrict the oscillators to orbits with energies that are integral mulætiples of 'hv', then the average oscillator energy in a canonical ensemble yealds Planck's law, when substituted in eg. The works contains the first systematic introduction of probability factors in the mathematics of Quantum Theory."" Weil: nos 15 (1-2 with an asterix, denoting a major paper). - Boni: 15.