'Selentife Tought, Work and ital, october. Edward' Arnold, London.
The current number of this excellent quarterly is of more than usual interes; to the chemist, although it contoing accounts also of the more "important advances in many other branches of science.
Dr. Feather's article, "1992 and After," explains exactly how the theory of protons and electrons the structural unite of atomic nuclei has come to be abandoned in favour of protons and neutrons. Before 1930, experiments on the disintegration of the nuclei of light elements, such seaiere ait to eect Jsnigy of the then United Kingdom en
Text read from the printed page and cleaned; old type leaves the occasional error.