Abstract
MOST pebbles are of irregular shape; for example, in the glacial beds of flint pebbles near my home in Essex, at the most two per cent have any symmetry, and the presumption is that the large majority have not been worn down long enough or far enough to acquire it. We shall leave the irregular majority aside and deal only with those that have symmetry.
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RAYLEIGH Pebbles of Regular Shape, and Their Reproduction in Experiment*. Nature 154, 169–171 (1944). https://doi.org/10.1038/154169a0
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DOI: https://doi.org/10.1038/154169a0
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