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Citations

Letter from Thomas Hedgcock to the Board of Longitude, 1818-05-28, GBR/0180/RGO 14/35: 300-301. Cambridge University Library.

Letter from Thomas Hedgcock to the Board of Longitude, 1818-05-28, GBR/0180/RGO 14/35: 300-301. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/159848 Accessed July 14, 2024.

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