Abstract
A general discussion of the treatment of the asymmorphic space groups is given, with special reference to the hexagonal close-packed lattice ($\frac{P{6}_{3}}{\mathrm{mmc}}$), for which the irreducible representations are given in full and the lattice harmonics listed for all $l$. The expansions possess the same properties as those given for the cubic groups in the preceding paper.
Published Version
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