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

by Agnes M. Clerke

[981] Proctor, Quart. Jour. of Science, vol. x., p. 185; Maunder, Sunday Mag., January, February, March, 1882; Campbell, Publ. Astr. Pac. Soc., vol. vi., p. 273.

[982] Am. Jour. of Sc., vol. xxviii., p. 163.

[983] Burton, Trans. Roy. Dublin Soc., vol. i., 1880, p. 169.

[984] Month. Not., vol. xxvii., p. 179; Astroph. Journ., vol. i., p. 193.

[985] Untersuchungen über die Spectra der Planeten, p. 20; Astroph. Journ., vol. i., p. 203.

[986] Publ. Astr. Pac. Soc., vols. vi., p. 228; ix., p. 109; Astr. and Astroph., vol. xiii., p. 752; Astroph. Jour., vol. ii., p. 28.

[987] Ibid., vol. v., p. 328.

[988] Ibid., vols. i., p. 311; iii., p. 254.

[989] C. Christiansen, Beiblätter, 1886, p. 532.

[990] Astr. and Astrophysics, vol. xi., p. 671.