Citations
Magnetic observations, 1850 - 1874, GBR/0180/RGO 6/674. Cambridge University Library. |
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Magnetic observations, 1850 - 1874, GBR/0180/RGO 6/674. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98866 Accessed February 17, 2025. |