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Sand-bath.

1. A vessel of heated sand, used as an equable heater for retorts, etc.

A form of evaporator largely used in laboratories.

Sand-bath.

Fig. 4560 represents a form of sand-bath in which a is a trough for sand; b, a small steam-boiler, which has a safety-valve not shown; d d are hot-air and smoke flues; and e a reservoir from which the boiler is supplied with water.

By the use of this or a similar arrangement, an equable temperature may be attained in the bath, and the chemist has always at hand a supply of hot water for purposes of the laboratory.


2. (Medical.) A form of bath in which the body is covered with warm or with sea sand.

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