Citations
Lieutenant William Milne's explanation of the compass variation using optical principles, 1819, GBR/0180/RGO 14/43: 333-361. Cambridge University Library. |
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Lieutenant William Milne's explanation of the compass variation using optical principles, 1819, GBR/0180/RGO 14/43: 333-361. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110216 Accessed July 05, 2024. |