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

by Agnes M. Clerke

[609] Astr. and Astrophysics, vol. xi., p. 604.

[610] Comptes Rendus, t. cxiii., p. 307.

[611] Astr. and Astrophysics, vol. xi., p. 50.

[612] Ibid., pp. 60, 314.

[613] Wiedemann's Annalen der Physik, Bd. xxv., p. 80.

[614] Evershed, Knowledge, vol. xxi., p. 133.

[615] Secchi, Le Soleil, t. ii., p. 294.

[616] Lockyer, Chemistry of the Sun, p. 418.

[617] L'Astronomie, August, 1884, p. 292 (Riccò); see also Evershed, Jour. British Astr. Ass., vol. ii., p. 174.

[618] Averaging about 100 miles across and 300 high. Le Soleil, t. ii., p. 35.