[Short Notices]

Abstract

THIS volume, now in its twentieth edition, really needs little introduction to readers of NATURE. It gives in a most convenient form an excellent set of mathematical tables and mathematical aids to chemists and physicists. The data concerning the physical and chemical properties of the elements are well set forth, and the arrangement of data in connexion with inorganic compounds is most helpful. Considerable pains have been taken with the nomenclature of organic compounds, and an extensive summary of the rules laid down by the Committee on Organic Nomenclature of the International Union of Chemistry is given. The section on X-ray spectra has been revised by Prof. Cork, and much valuable data included. The magnetic data have also been enlarged, additions in magneto-optics being particularly noticeable; the magnetic susceptibility of liquid mercury is, however, incorrect, and it is suggested that data on the magnetic anisotropy might be included in later editions. On the whole, teachers and research workers will find that the possession of this volume will relieve them of much searching for scattered data, and it is strongly recommended.

Handbook of Chemistry and Physics:

a Ready-Reference Book of Chemical and Physical Data. Editor-in-Chief: Prof. Charles D. Hodgman. Twentieth edition. Pp. xiv + 1951. (Cleveland, Ohio: Chemical Rubber Publishing Co.; London: A. Harvey, 1935.) 6 dollars; 25s.