Refine by:
-
▾ Subject
- Longitude (185)
- Legislation (163)
- ASTRONOMY (81)
- Time Measuring Instruments (79)
- Marine navigation (71)
- Chronomoters (44)
- Nautical instruments (41)
- Horology (21)
- Navigational aids (17)
- Geographical exploration (16)
- Magnetism (15)
- Ocean currents (13)
- Transit of Venus (9)
- observatories (9)
- scientific instruments (9)
- Journal (7)
- Navigation (science) (4)
- Tides (4)
- Astronomical Observatories (3)
- Colonial administration (3)
- Latitude (3)
- SCIENCE (2)
- TRAVEL (2)
- Winds (2)
- Aids to navigation (1)
- Compasses (1)
- Discoveries in geography (1)
- Expeditions (1)
- Geodesy (1)
- Jupiter (Planet) (1)
-
▾ Date
- 1600s C.E. (1)
- 1700s C.E. (256)
- 1800s C.E. (411)