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Subma-rine Ther-mome-ter.


Nautical.) A chamber having valves above and below, and inclosing a thermometer, is lowered to the required depth, the water flowing upward through the chamber as it descends. When the descent is checked, the valves close, and the chamber is hauled up, containing water from the depth reached.

A registering-thermometer is now used. See Ther-Mometer.

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