Casella-Miller mercury deep-sea thermometer, invented by James Six, England, designed by William Allen Miller, England, and made by L. P. Casella, London, England, 1869. This type of Casella-Miller mercury deep-sea thermometer was used on the HMS Challenger Expedition (1872-1876). The plastic body surrounding the thermometer obviously post-dates the thermometer itself.
- Object Number:
- inorganic material
- nonferrous metal
- furnishing and equipment
- measuring device - instrument
- Admiralty Hydrographic Department
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