Inside Out Library · ExploreA handbook of double stars, with a catalogue of twelve hundred double stars and extensive lists of measures. With additional notes bringing the measures up to 1879 (1879)Crossley, Edward, 1841-1904 · London, Macmillan · leaf 31THE BERMERSIDE EQUATORIAL.Double stars · Astronomical observatories · Micrometers (Instruments)Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.More pictures from A handbook of double stars, with a catalogue of twelve hundred double stars and extensive lists of measures. With additional notes bringing the measures up to 1879More like this