Isotopes

Abstract

IT is seldom that a natural philosopher has made a subject so peculiarly his own as Dr. Aston has done with the experimental investigation of isotopes. At the present time, about fifty non-radioactive elements have been examined for isotopes, and all except half-a-dozen or so are among Dr. Aston's trophies. It is not, apparently, so much that other workers have stood aside as that the technique is not quite so simple as a casual description of the experimental method might suggest to the inexperienced. About two years ago, Dr. Aston published a general account of his work since the War under the title “Isotopes,” and, as was to be expected, a second edition was soon demanded, which has now made its appearance.

Isotopes.

By Dr. F. W. Aston. Second edition. Pp. xi + 182 + 5 plates. (London: E. Arnold and Co., 1924.) 10s. 6d. net.