Details
- TitleEarth current tracings
- ReferenceUK0108 SC MSS 025
- Date1872
- Scope and ContentTracings from the photographic record of the N-S and E-W earth currents and the Horizontal Force Magnet, and a copy of the photographic register of Western Declination at the Royal Observatory, Greenwich.
- Exent3 items
- LanguageEnglish.
- Subject
- Conditions governing accessOpen access
- Level of descriptionsub-fonds