Citations
Observations with Troughton's mural circle, 1832 - 1834, GBR/0180/RGO 5/83. Cambridge University Library. |
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Observations with Troughton's mural circle, 1832 - 1834, GBR/0180/RGO 5/83. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98027 Accessed April 16, 2025. |