Two charts are presented. The first one gives, from a rotation photograph, the direct lattice translation of the rotation axis. From a zero‐layer undistored Weissenberg photograph, the second chart gives the reciprocal lattice translations perpendicular to the rotation axis. The nomographs are constructed for the standard camera radius (R = 180/2π mm), but they can be used with any wavelength.

Topics
Crystal lattices
1.
M. J. Buerger, X‐Ray Crystallography (John Wiley & Sons, Inc., New York), pp. 225, 263 (1942).
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© 1952 American Institute of Physics.
1952
American Institute of Physics
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