Indescent Clouds


ON Thursday evening, December 11, about fifteen minutes after sunset, in the south-west direction as seen from the Royal Observatory here, were two rather large clouds about 10° or 12° high, and below them several much smaller ones, all of them of the most brilliantly iridescent colours and nothing but bright colour, of a kind I do not remember to have seen before, though they were not improbably like some described by several of NATURE'S correspondents last year.

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PIAZZI-SMYTH, C. Indescent Clouds. Nature 31, 148 (1884).

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