Citations
Letter from William Marrat on an instrument for measuring altitude, 1803-11-01, GBR/0180/RGO 14/45: 237-240. Cambridge University Library. |
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Letter from William Marrat on an instrument for measuring altitude, 1803-11-01, GBR/0180/RGO 14/45: 237-240. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110273 Accessed January 31, 2025. |