BECQUEREL, Antoine Henri (1852-1908). "Sur les radiations emises par phosphorescence." – "Sur les radiations invisibles emises par les corps phosphorescents." – "Sur quelques proprieties nouvelles des radiations invisibles emises par divers corps phosphorescents." – "Sur les radiations invisibles emises par les sels d'uranium." – "Sur les proprieties differentes des radiations invisibles emises par les sels d'uranium, et du rayonnement de la paroi anticathodique d'un tube de Crookes." – "Emission de radiations nouvelles par l'uranium metallique." In: Comptes Rendus Hebdomadaires des Séances de l'Academie des Sciences, vol. 122, pp. 420-421, pp. 501-503, pp. 559-564, pp. 689-694, pp. 762-767, pp. 1086-1088. Paris: Gauthier-Villars, 1896.

FIRST EDITION, journal issue of the six articles documenting Becquerel's research on uranium. Antoine Henri Becquerel began his studies of radioactivity shortly after Wilhelm Conrad Rontgen's discovery of x-rays in 1895. Having already done extensive research into phosphorescence, Becquerel "began looking for a connection between [his research] and the newly discovered x-rays," utilizing uranium salts and other elements to conduct experiments on the emission of x-ray-like radiation in phosphorescent materials. For his work Becquerel won the Rumford Medal for his discovery of the radioactivity of uranium in 1900 as well as the 1903 Nobel Prize in Physics, an honor he shared with Marie and Pierre Curie. Garrison-Morton 2001; Norman 157.

Large 4to (258 x 215mm). Half-title. Contemporary half cloth over marbled paper boards, spine lettered in gilt (rubbing). Provenance: Peter and Margarethe Braune (bookplate); previously sold Christies New York, 2 July 2019, sale 17700 lot 215; Institute of Physics, University of Würzburg (stamp).

[With]: EINSTEN, Albert (1879-1955). "Zur Affinen Feldtheorie." In: Sitzungsberichte der Preussischen Akademie der Wissenschaften, vol. XVII. [Berlin]: Verlag der Akademie der Wissenschaften, 1923. 8vo. Original orange wrappers; folding case. FIRST EDITION. -- PLANCK, Max (1858-1947). "Uber die Grenzschicht Verdunnter Elektrolyte." Parts I-III. In: Akademie der Wissenschaften. Berlin: Akademie der Wissenshaften, 1930-31. 3 volumes, 8vo. Original orange wrappers; folding case. FIRST EDITIONS, PRESENTATION COPIES (vols. II-III) with "Uberreicht vom Verfasser" printed at upper right. -- Together, 10 works in 5 volumes, condition generally very fine.