Johnson's Deep-Sea Bi-metallic Thermometer, 1860

Made:
1860 in unknown place
designer:
Henry Johnson
Henry Johnson's bi-metallic registering thermometer, 1860

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Henry Johnson's bi-metallic registering thermometer, 1860
Science Museum Group
© The Board of Trustees of the Science Museum

Henry Johnson's bi-metallic registering thermometer, 1860

Details

Category:
Oceanography
Object Number:
1876-817
Materials:
brass (copper, zinc alloy), iron and copper (metal)
Measurements:
overall: x 395 mm x , 51 mm, .89kg
type:
thermometer
credit:
Admiralty Hydrographic Department