Note 32 — Front matter (continued 2)
Reading edition
This lecture was afterwards published as a book, the first edition bearing the same title as the lecture—viz., "The Work of Hertz and Some of His Successors." In the second edition, published in 1898, an appendix was added (p. 59) containing "The History of the Coherer Principle," and the original title of the work had prefixed to it "Signalling Without Wires."