Citations
Submissions by brothers William Patsull and John Patteshull on sand and mercurial hour glasses, 1786, GBR/0180/RGO 14/45: 266-271. Cambridge University Library. |
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Submissions by brothers William Patsull and John Patteshull on sand and mercurial hour glasses, 1786, GBR/0180/RGO 14/45: 266-271. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/110279 Accessed January 21, 2025. |