...In this way, too, he rids himself of the biting gnats and stinging mosquitoes that swarm there; and also cools his blood, fevered by parasites, larvae, and the hot sun... 
Mayne Reid 「The Hunters' Feast」
...Impure black is brown, butblack in its purity is a cold colour, and communicates a coolness to alllight colours; thus it blues white, greens yellow, purples red,and cools blue...
George Field 「Field's Chromatography」
...But an end to this must come, and it cools off in old age...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...The rain that does fall certainly cools the atmosphere a little, whichis a partial benefit...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
...The change is believed to be due to the increase of absorbing vapors in the stellar atmosphere as the body cools down...
Garrett Serviss 「Curiosities of the Sky」
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