BECQUEREL, HENRI.

Sur la lois de la décharge dans l'air de l'uranium électrisé.

(Paris, Gauthier-Villars), 1897. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 124, No 15. Pp. (797-) 838. (Entire issue offered). Becquerel's paper: pp. 800-803.

First printing. In 1896 Becquerel made his landmark discovery of radioactivity and in this follow-up paper he further established some of the properties of the radiation so that it could be identified unambiguously.

Order-nr.: 49453