on tl~e Origin of not than Darwin on the special subject under discussion. The facts from "a widening circle of observations " referred to comprise the physical and biological results of deep-sca exploration. The writer is mentioned as one of the "competent observers" who had given "independent testimony" in favour of Darwin's views after "at least equal opportunities of studying, g the subject," and as he has, in these latter years, looked rote the new facts, he has at least a claim to a

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... g. As to Darwin's knowledge, it appears to the writer that the apology offered in the above citations was not needed. In his detailed investigation of Keeling atoll (a good example of atolls, and like all the rest in its principal features) and in his examination of the Tahitian reefs, followed up by a careful study of other atolls and reefs of the ocean through the maps and descriptions of former surveying-expeditions, he had a broad basis for judgment and right conclusions. When the second edition of his work was published in 1874, many of the important facts from deep-sea exploration were already known; and later he learned of the more recent results ; and he did not recant.