The Philips Electronic Instruments X-ray generator provides an X-ray source for the Laue method X-ray photo measurement. The system has been upgraded with a modern and complete safety interlocked, ...

THE classical methods of X-ray crystallography give either the spacings but not the positions of the reflecting planes (if monochromatic radiation is used, as in the rotating crystal and powder ...

ABOUT this time last year, at the suggestion of Prof. A. W. Stewart, I began some work to test whether or not the molecules of a substance (more particularly at first of a liquid) underwent an ...