Cambridge Digital Library

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1. ▾ Collection
   • Board of Longitude (77)
   • Longitude Essays (5)
   • National Maritime Museum Print Works (6)
   • Papers of John Pond (19)
   • Papers of Nevil Maskelyne (9)
   • Papers of the Board of Longitude (38)
2. ▾ Subject
   • Time Measuring Instruments (49)
   • Longitude (35)
   • Horology (27)
   • Marine navigation (17)
   • Astronomy (14)
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   • Publishing (3)
   • Chronomoters (2)
   • Chronometers (1)
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   • Navigational aids (1)
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3. ▾ Date
   • 1600s C.E. (2)
   • 1700s C.E. (51)
   • 1800s C.E. (32)