Citations
John Syed's quadrant with artificial horizon, steering compass etc., 1791 - 1800, GBR/0180/RGO 14/29: 42-80. Cambridge University Library. |
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John Syed's quadrant with artificial horizon, steering compass etc., 1791 - 1800, GBR/0180/RGO 14/29: 42-80. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/109866 Accessed April 24, 2024. |