Cambridge Digital Library

Refine by:

1. ▸  Collection
   • Darwin Manuscripts (12)
   • Royal Greenwich Observatory Archives (1)
2. ▸  Subject
   • Longitude (1)
   • Nautical instruments (1)
   • Ocean currents (1)
   • Time Measuring Instruments (1)
3. ▸  Page has transcription
   • No (3)
   • Yes (10)
4. ▸  Languages
5. ▸  Date
   • 1800s C.E. (13)