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

by Agnes M. Clerke

[715] Sitzungsberichte, Wien, Bd. lxxix., ii., p. 391.

[716] Wiedemann's Annalen, Bd. xxii., p. 291; Scheiner, Strahlung und Temperatur der Sonne, p. 27.

[717] Comptes Rendus, March 28, 1892; Astr. and Astrophysics, vol. xi., p. 517.

[718] Phil. Trans., vol. clxxxv., p. 361.

[719] Proc. Roy. Society, December 12, 1901.

[720] Scheiner, Temp. der Sonne, p. 36.

[721] Astroph. Jour., vol. ii., p. 318.

[722] Astr. Nach., Nos. 1,815-16.

[723] L'Astronomie, September, 1884, p. 334.

[724] Amer. Jour. of Science, vol. i. (3rd ser.), p. 653.