Rays of Positive Electricity and Their Application to Chemical Analyses (Classic Reprint)

Positive Rays which seem to throw light on the problems of the structure of molecules and atoms and the question of chemical combination. The hope expressed in the first edition that the method of Positive Rays would be of service in connection with important chemical problems has been fulfilled to a remarkable extent by the researches of Mr. Aston and others on the determination of atomic weights and the detection of isotopes. I am convinced that as yet we are only at the beginning of a harvest of results which will elucidate the process of chemical combination, and thus bridge over the most serious gap which at present exists between Physics and Chemistry. I regret the long delay in the issue of this edition ;it has been due to the Warand the pressure of many duties. I have much pleasure in thanking Mr. W. H. Hayles, of the Cavendish Laboratory, for his help in the preparation of the plates. J. J. THOMSON. THE LODGE, TRINITY COLLEGE, CAMBRIDGE. A ugusf, 1921.
(Typographical errors above are due to OCR software and don't occur in the book.)

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