Two charts of reciprocal Lorentz‐polarization factors for equi‐inclination Weissenberg photographs are given, which will furnish simple templates of such factors to be used either directly on the Weissenberg photographs or on the reciprocal lattice nets drawn to an appropriate scale.

Topics
Crystal lattices
1.
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7.
The use of these punched Fourier cards is discussed by P. A. Shaffer, Jr., in his Ph.D. Thesis, California Institute of Technology, 1942.
See also Eckert, “Punched cards methods in scientific computation,” Columbia University, 1940.
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© 1943 American Institute of Physics.
1943
American Institute of Physics
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