Refine by:
-
▾ Subject
- Longitude (24)
- ASTRONOMY (22)
- Nautical instruments (14)
- Time Measuring Instruments (13)
- Marine navigation (10)
- Magnetism (7)
- Navigation (science) (5)
- Jupiter (Planet) (2)
- Compasses (1)
- Horology (1)
- Legislation (1)
- Navigational aids (1)
- Tides (1)
-
▾ Date
- 1700s C.E. (12)
- 1800s C.E. (15)