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Article
The Complexity of the Solid State
IT is a well-known fact that if we distil off a part of a quantity of pure water, no physical or chemical property is changed by the process; for example, the vapour pressure of the remaining liquid, the vapou...
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Article
Transformations of Elements
THE theory of allotropy, starting from the supposition that every state of aggregation (phase) of a so-called simple substance (system of one component) is complex, that is, consists of different molecular spe...
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Article
Transmutation of Elements
A Transmutation of Lead (First Method).
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Article
The Transmutation of Elements
IN a letter to NATURE of January 30, 1926, Dr. Davies and Prof. Frank Horton give some considerations about the transmutation of mercury and lead which agree completely with those given by me in a lecture deli...
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Article
Transmutation of Elements
SINCE the publication of my letter on the transmutation of lead in NATURE of May 1, 1926, I have continued the experiments in collaboration with Dr. A. Karssen and W. A. Frederikse. In the letter mentioned abo...
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Article
Complexity of the Solid State
THE theory of allotropy assumes that every state of aggregation of a so-called single substance is complex, so that every crystalline state consists of mixed crystals, built up of molecules of different kinds....
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Article
The Low-temperature Transformation of Heavy Ammonium Chloride
AFTER having studied the low-temperature transformations of the ammonium halides, it was of interest to examine the influence of a substitution of the ordinary hydrogen in the ammonium group by heavy hydrogen....