Cambridge Digital Library

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1. ▸  Collection
   • Royal Greenwich Observatory Archives (5)
2. ▸  Subject
   • ASTRONOMY (5)
   • Astronomy (5)
   • Longitude (5)
   • Marine navigation (4)
   • Mathematics (4)
   • Jupiter (Planet) (1)
   • Jupiter (planet) (1)
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3. ▸  Page has translation
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4. ▸  Languages
5. ▸  Date
   • 1700s C.E. (1)
   • 1800s C.E. (4)