Refine by:
-
▾ Subject
- ASTRONOMY (35)
- Longitude (24)
- Nautical instruments (13)
- SCIENCE (12)
- Marine navigation (10)
- Jupiter (Planet) (8)
- Magnetism (7)
- Time Measuring Instruments (6)
- Geographical exploration (3)
- Navigation (science) (3)
- Latitude (2)
- Legislation (2)
- Navigational aids (2)
-
▾ Date
- 1700s C.E. (17)
- 1800s C.E. (33)