Uber Inductionserscheinungen hervorgerufen durch die electrischen Vorgange in Isolatoren; [with:] Uber Strahlen electrischer Kraft; [and:] Uber die Ausbreitungsgeschwindigkeit der electrodynamischen Wirkungen [Three collected papers from: Sitzungsberichte der Preussischen Akademie der Wissenschaften]

Sitzungsberichte der Preussischen Akademie der Wissenschaften, Berlin, 1887, 1888. Hardcover. Very Good. 8vo, hardcover, no dj. Vg condition. The first appearance in print of three papers extracted from the journal: Sitzungsberichte der Preussischen Akademie der Wissenschaften, and bound between hard covers. Previous owner’s notes listing titles on the front endpaper, no other marking or writing. Binding sturdy and integral. Three landmark papers concerning Hertz’s electromagnetic research, sent to his mentor, Hermann von Helmholtz at the Prussian Academy of Sciences, establishing the validity of James Clerk Maxwell’s theory of electromagnetic waves and their equivalency with light. Titles translated are: "On Electromagnetic Effects Produced by Electrical Disturbances in Insulators"; "On the radiation of Electrical Power"; and "On the Speed of Propagation of Electrdynamic Effects".