Abstract
IN NATURE for June 7, Mr. Tate Regan refers to “the series x, x/2, x/3, x/4, etc. x/x, representing the number of genera with 1, 2, 3, 4, etc. species in a group where the sizes of genera are purely a matter of chance.” I am unable to attach any definite meaning to the phrase “are purely a matter of chance,” since the sizes might be “a matter of chance” in many different ways, and I do not see what process Mr. Tate Regan has supposed to be followed. Will he be so good as to state exactly in what way he supposes the systematist to operate, and to show how the series in question arises from his operations?
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YULE, G. Frequency Curves of Genera and Species. Nature 114, 10 (1924). https://doi.org/10.1038/114010b0
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DOI: https://doi.org/10.1038/114010b0
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