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Radcliffe Tracts 3 (1)Herschel, Sir John F. W.
"A List of Test Objects, Principally Double Stars, arranged in Classes, for the Trial of Telescopes in Various respects, as to Light, Distinctness, etc."
offprint from Memoirs of the Royal Astronomical Society, vol. VIII, 1834. London: J. Moyes, 1834.
[1934-41]
1834