Refine by:
-
▾ Subject
- Longitude (78)
- Legislation (50)
- ASTRONOMY (48)
- Marine navigation (42)
- Time Measuring Instruments (22)
- Nautical instruments (20)
- Horology (16)
- Magnetism (4)
- Ocean currents (4)
- Tides (4)
- Navigational aids (3)
- SCIENCE (3)
- Geographical exploration (2)
- Jupiter (Planet) (2)
- Latitude (2)
- Winds (2)
- Astronomical Observatories (1)
- Chronomoters (1)
- Colonial administration (1)
- Commerce (1)
- MATHEMATICS (1)
- MEDICAL SCIENCES (1)
- Medicine (1)
- Navigation (science) (1)
- TRADE (1)
- photography (1)
- scientific instruments (1)
- telescopes (1)
- trains (1)
-
▾ Date
- 1700s C.E. (111)
- 1800s C.E. (118)