Citations
Letter from Thomas Evans on an instrument for taking altitudes of the Sun without a horizon, 1811-12-15, GBR/0180/RGO 14/44: 113-115. Cambridge University Library. |
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Letter from Thomas Evans on an instrument for taking altitudes of the Sun without a horizon, 1811-12-15, GBR/0180/RGO 14/44: 113-115. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110262 Accessed May 05, 2024. |