(1) Studies in Radioactivity (2) The Electrical Properties of Flames and of Incandescent Solids

Abstract

IT is seldom in the history of any science that three fundamental discoveries are included within the brief space of three years. The discovery of X-rays in 1895 marks a new epóch in the history of physical science, for it led early in 1896 to the discovery of radio-activity and was followed in 1897 by the proof of the nature of the kathode rays and the advent of the electron as a definite entity. In the following years an ever-increasing fraction of the energy of workers in physics has been devoted to a study of the numerous important problems which have arisen from these three primary discoveries.

(1) Studies in Radioactivity.

Prof. W. H. Bragg, F.R.S. Pp. xi + 196. Macmillan's Science Monographs. (London: Macmillan and Co., Ltd., 1912.) Price 5s. net.

(2) The Electrical Properties of Flames and of Incandescent Solids.

Prof. H. A. Wilson, F. R. S. Pp. vii + 119 (London: University of London Press; Hodder and Stoughton, 1912.) Price 6s. net.