Johnson's Deep-Sea Bi-metallic Thermometer, 1860
- Made:
- 1860 in unknown place
- designer:
- Henry Johnson
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