Certificate for standard thermometers supplied from Kew Observatory to Joule. Signed by "Welch", shows corrections to be applied to the scale readings.
Former references: Lowery ref. 11; Pate ref. 668.
Certificate
This material is held atUniversity of Manchester Library
- Reference
- GB 133 JPJ/39
- Dates of Creation
- Nov 1856
- Physical Description
- 1 sheet