![](https://coimages.sciencemuseumgroup.org.uk/23/187/large_thumbnail_1977_0164__0003_.jpg)
6 boxed Twaddell hydrometers
- maker:
- Twaddell, William
![Set of six Twaddell's hydrometers in box (lacks thermometer)](https://coimages.sciencemuseumgroup.org.uk/321/785/medium_smg00072213.jpg)
Set of six Twaddell's hydrometers in box (lacks thermometer), Germany
Made of glass with mercury weights and paper scales; case: probably deal with walnut veneer
Details
- Category:
- Experimental Chemistry
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1982-279
- Materials:
- glass, mercury, paper (fibre product), deal and walnut (wood)
- type:
- hydrometer
- credit:
- Wellcome Trust