Citations
Correspondence with John George Hartley on a solar timepiece, 1821, GBR/0180/RGO 14/38: 379-387. Cambridge University Library. |
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Correspondence with John George Hartley on a solar timepiece, 1821, GBR/0180/RGO 14/38: 379-387. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110120 Accessed June 02, 2023. |