Cambridge Digital Library

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1. ▾ Collection
   • Board of Longitude (20)
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   • Papers of the Board of Longitude (18)
2. ▾ Subject
   • Astronomy (19)
   • Longitude (14)
   • Geographical exploration (9)
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3. ▾ Date
   • 1700s C.E. (16)
   • 1800s C.E. (9)