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

by Agnes M. Clerke

[679] Amer. Jour. of Science, vol. xxxiv., p. 348.

[680] Berlin Abhandlungen, 1889.

[681] Amer. Jour. of Science, vol. xli., p. 243. See Appendix, Table II.

[682] Astrophy. Jour., vol. ix., p. 219; Fowler, Knowledge, vol. xxiii., p. 11.

[683] Amer. Jour, of Science, vol. xiv., p. 89; Nature, vol. xvi., p. 364; Month. Not., vol. xxxix., p. 440.

[684] Month. Not., vol. xxxviii., p. 473; Trowbridge and Hutchins, Amer. Jour. of Science, vol. xxxiv., p. 263.

[685] Scheiner, Die Spectralanalyse, p. 180.

[686] Comptes Rendus, t. lxvii., p. 1123.

[687] Rev. A. L. Cortie, Month. Not., vol. li., p. 18.

[688] Young, The Sun, p. 135; Hale, Astr. and Astrophysics, vol. xi., p. 312 Buss, Jour. Brit. Astr. Ass., vol. ix., p. 253.