Context

Context of Catalogue of the mean declination of 981 stars : between twelve and twenty-six hours of right ascension, and thirty degrees and sixty degrees of north declination, for January 1, 1875, Prepared under the direction of Bvt. Brig. Gen'l C.B. Comstock, U.S.A., major corps of engineers in charge of U.S. Lake Survey, by Professor T. H. Safford, director of Dearborn Observatory
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