Citations
Observations with Troughton's mural circle, 1825, GBR/0180/RGO 5/74. Cambridge University Library. |
|
Observations with Troughton's mural circle, 1825, GBR/0180/RGO 5/74. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98018 Accessed April 17, 2025. |