Subject Source: UK Archival Thesaurus
Found in 1 Collection or Record:
Correspondence on magnetism and photography, 1849 - 1854
Reference Code: GBR/0180/RGO 6/677
Scope and Contents
Correspondence with C. Brooke, F. Beaufort, E. Sabine and F. Ronalds concerning magnetic instruments and photographic registration. There are two circulars advertising Gray and Keen's floating compasses; specimens of photographic secondaries and tertiaries; papers regarding tests on various emulsions; and notes on the Greenwich magnetic instruments for 1853 and 1854.
Dates: 1849 - 1854
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