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Radcliffe Tracts 3 (5)Fletcher, Isaac

"Results of Micrometrical Measures of Double Stars, made at Tarn Bank, Cumberland, from 1850.2 to 1853.4"

offprint from Memoirs of the Royal Astronomical Society, vol. XXII, 1854. London: George Barclay, 1854.

[1934-41]

1854