Citations
Letter from Thomas Hedgcock to the Board of Longitude, 1813-02-25 - 1813-04-15, GBR/0180/RGO 14/35: 281-282. Cambridge University Library. |
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Letter from Thomas Hedgcock to the Board of Longitude, 1813-02-25 - 1813-04-15, GBR/0180/RGO 14/35: 281-282. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/159835 Accessed April 28, 2025. |