Cambridge Digital Library

Refine by:

1. ▾ Collection
   • Board of Longitude (15)
   • Papers of the Board of Longitude (15)
2. ▾ Subject
   • Astronomy (19)
   • Longitude (14)
   • Geographical exploration (9)
   • Marine navigation (9)
   • Navigational aids (6)
   • Discoveries in geography (5)
   • Navigation (5)
   • Time Measuring Instruments (4)
   • Nautical instruments (3)
   • Travel (3)
   • Aids to navigation (1)
   • Magnetism (1)
   • Maps (1)
   • Navigation (science) (1)
   • Publishing (1)
3. ▾ Date
   • 1700s C.E. (16)
   • 1800s C.E. (9)