...Therewere no changes of weather in them, no rain clouds or fair-weatherclouds, nothing but various shapes of the cumulus or cirrus, introducedfor the sake of light on the deep blue sky... 
John Ruskin 「Lectures on Architecture and Painting」
...At noon, nimbus, and some rain, tantalised us withthe hope of a change; but the sky drew up into clouds of cumulus by theevening...
Thomas Mitchell 「Journal of an Expedition into the Interior of Tropical Australia」
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