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Citations

Astronomical methods and instruments, 1875 - 1878, GBR/0180/RGO 6/175. Cambridge University Library.

Astronomical methods and instruments, 1875 - 1878, GBR/0180/RGO 6/175. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98366 Accessed November 30, 2023.

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