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A Crab-Shell Barometer

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International Tract and Missionary Society · Oakland, California · Oct 15, 1885

FromSigns of the Times, Vol. 11, No. 39.

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A Crab-Shell Barometer

A CURIOUS barometer is used by the remnant of the Araucanian race which inhabits the southernmost province of Chili. It consists of the cast-off shell of a crab, which is said to be extremely sensitive to atmospheric changes, remaining quite white in fair, dry weather, but indicating the approach of a moist atmosphere by the appearance of small red spots, which grow both in number and in size as the moisture in the air increases, until finally, with the actual occurrence of rain, the shell becomes entirely red, and remains so throughout the rainy season.—Advance.