Citations
John Nicoll on a new mariner's compass to show its own variation, 1804, GBR/0180/RGO 14/42: 197-203. Cambridge University Library. |
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John Nicoll on a new mariner's compass to show its own variation, 1804, GBR/0180/RGO 14/42: 197-203. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110205 Accessed February 19, 2025. |