Beaufort, Francis, Sir, 1774 - 1857 (Knight, Rear Admiral and hydrographer)
Found in 4 Collections and/or Records:
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.
- Subject: Magnetism X