Citations
Observations with Troughton's circle, 1815 - 1816, GBR/0180/RGO 5/66. Cambridge University Library. |
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Observations with Troughton's circle, 1815 - 1816, GBR/0180/RGO 5/66. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98010 Accessed April 10, 2025. |