Abstract
THIS important book is divided into six chapters, Jeach of which is written by an authority on his subject; the whole is edited by Prof. Hans Geiger. Dr. Bothe gives an informed and comprehensive account of the work on the passage of No. 3046, VOL. 121] electrons through matter, their velocity and ionising power, their absorption in and scattering by substances, and on the secondary rays to which the electrons give rise. The second chapter, by Prof. Riichardt and Prof. Baerwald, deals with the passage of canal-rays through gases and solid objects; special attention is directed to the importance of the Doppler effect in canal-rays. The editor is responsible for the chapter on the passage of a particles through matter, a subject which in the hands of Sir Ernest Rutherford and his pupils has been one of the most revealing in modern physics. This chapter, which is an excellent account of all the physical properties of the a-particle, is perhaps the best in the book.
Handbuch der Physik.
Herausgegeben von H. Geiger Karl Scheel Band 24: Negative und positive Strahlen, zusammenhängende Materie. Redigiert von H. Geiger. Pp. xi + 604. (Berlin: Julius Springer, 1927.) 49.50 gold marks.
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R., A. Handbuch der Physik. Nature 121, 414–415 (1928). https://doi.org/10.1038/121414a0
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DOI: https://doi.org/10.1038/121414a0
