H.B.M. AMBASSADOR AT TOKIO.
Three Volumes. £4 4s. net.
"There can hardly be an over-measure of praise accorded to Sir Charles Eliot for the methods he uses and the qualities he exhibits. A set of volumes which henceforth, surely, must be counted indispensable."—The Times Literary Supplement.
NEW SCIENTIFIC AND TECHNICAL BOOKS.
ISOTOPES
By F. W. ASTON, M.A., D.Sc., F.R.S.,
FELLOW OF TRINITY COLLEGE, CAMBRIDGE.
With Diagrams and Plates. Demy 8vo. 9s. net.
The foundations of the Atomic Theory have been based for over a century on Dalton's definition of the Atom. The discovery of radio-activity and the application of Positive Rays to the analysis of the elements have shown that our conception of the Atom as being homogeneous and indivisible must be modified. No one is better fitted to deal with the subject of isotopes than Dr. Aston, whose memoirs on this subject extend over a number of years. The book deals not only with isotopes, but gives a general survey of the electrical theory of matter.
AN INORGANIC CHEMISTRY.