Mercury Racking Thermometer by Dallaway, 1799-1809

Made:
1799-1809 in London
maker:
Dallaway, Joseph James
Mercury racking thermometer in leather-covered wooden case by

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Mercury racking thermometer in leather-covered wooden case by
Science Museum Group
© The Board of Trustees of the Science Museum

Mercury racking thermometer in leather-covered wooden case by Joseph James Dallaway, (fl.1799-1809), London, England. The thermometer bulb can be racked below the brass scale for immersion in liquid. Scale in degrees Farenheit. Label claims that it was owned by George Cadogan, Glasgow (1754-1798).

Details

Category:
Heat
Object Number:
1978-99
Materials:
brass (copper, zinc alloy), mercury, glass, wood (unidentified), leather, velvet, paper (fibre product), hair and silk
Measurements:
overall (in case): 20 mm x 206 mm x 41 mm, , .1kg
type:
thermometer and mercury thermometer
credit:
Mr Peter Delehar