issue contents
April 1994 issue

Cover illustration: Simulation of a section synchrotron-radiation topographof diamond showing Pendellösung fringes. Courtesy of G. Kowalski, A. R. Lang, A. P. W. Makepeace and M. Moore.
research papers
short communications
laboratory notes
computer program abstracts
meeting reports
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crystallographers
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new commercial products
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books received
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