Fitzroy's storm barometer, 1871-1880.

Fitzroy's storm barometer, 1871-1880.

© Science Museum / Science & Society Picture Library

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Admiral Robert Fitzroy (1805-1865) set up the organisation known as the Meteorological Office (Met Office), to warn ships going to sea of the approach of bad weather. To a simple mercury barometer he added a set of weather sayings to asist the would-be mariner to make his own forecast. This example by Negretti and Zambra includes a thermometer and wet and dry bulb thermometers for humidity measurement, making it suitable for inland rather than for maritime use.
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