About 10 results ()
Refine by:
-
▾ Collection
- Papers of John Pond (6)
- Papers of the Board of Longitude (4)
- Royal Greenwich Observatory Archives (10)
-
▾ Subject
- Time Measuring Instruments (10)
- Marine navigation (6)
- ASTRONOMY (4)
- Longitude (4)
- Latitude (2)
- Magnetism (2)
- Nautical instruments (2)
- Navigation (science) (2)
-
▾ Date
- 1700s C.E. (1)
- 1800s C.E. (9)