Twaddle's hydrometer
- Made:
- circa 1900 in London
Twaddle's hydrometer, glass, made by Baird and Tatlock (London). Ltd. c. 1900
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1980-129
- Materials:
- glass, mercury and paper (fibre product)
- type:
- hydrometer
- credit:
- Dr. Brian Bracegirdle.