Results of the spectroscopic and photographic observations made at the Royal Observatory, Greenwich, in the year ...
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Item Link | Original Source |
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Full view 1888 | Princeton University |
Full view 1889 | Princeton University |
Full view 1890 | Princeton University |
Full view 1893 | Princeton University |
Full view 1894 | Princeton University |
Full view 1895 | Princeton University |
Full view 1896 | Princeton University |
Full view 1897 | Princeton University |
Full view 1898 | Princeton University |
Full view 1899 | Princeton University |
Full view 1900 | Princeton University |