A Popular History of Astronomy During the Nineteenth Century / Fourth Edition

by Agnes M. Clerke

[933] Birt, Ibid., p. 95.

[934] Report Brit. Ass., 1872, p. 245.

[935] Observatory, vol. xv., p. 250.

[936] Astr. Reg., vol. xvi., p. 265; Astr. Nach., No. 2,275.

[937] Lindsay and Copeland, Month. Not., vol. xxxix., p. 195.

[938] Observatory, vols. ii., p. 296; iv., p. 373. N. E. Green (Astr. Reg., vol. xvii., p. 144) concluded the object a mere "spot of colour," dark under oblique light.

[939] Webb, Cel. Objects, p. 101.

[940] Publ. Lick Observatory, vol. iii., p. 7.

[941] Ibid., p. 21; Mee, Knowledge, vol. xviii., p. 135.

[942] Comptes Rendus, t. cxxii., p. 967; Bull. Astr., August, 1899; Ann. Bureau des Long., 1898; Nature, vols. lii., p. 439; lvi., p. 280; lix., p. 304; lx., p. 491; Astroph. Jour. vol. vi., p. 51.