Refine by:
-
▾ Subject
- ASTRONOMY (93)
- Marine navigation (83)
- Longitude (72)
- Geographical exploration (54)
- Nautical instruments (53)
- Navigational aids (38)
- TRAVEL (24)
- Astronomical Observatories (23)
- Colonial administration (23)
- Discoveries in geography (23)
- Navigation (23)
- Legislation (15)
- Aids to navigation (12)
- Maps (12)
- Horology (10)
- SCIENCE (7)
- Time Measuring Instruments (4)
- Latitude (3)
- Magnetism (3)
- Tides (3)
- Winds (3)
- ANTHROPOLOGY (2)
- Jupiter (Planet) (2)
- Navigation (science) (2)
- ACADEMIC STANDARDS (1)
- Geodesy (1)
-
▾ Date
- 1700s C.E. (67)
- 1800s C.E. (68)