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

by Agnes M. Clerke

[725] Young, The Sun, p. 310.

[726] Op., t. vi., p. 198.

[727] Rosa Ursina, lib. iv., p. 618.

[728] Méc. Cél., liv. x., p. 323.

[729] Le Soleil (1st ed.), p. 136.

[730] Monatsber., Berlin, 1877, p. 104.

[731] Astr. Nach., Nos. 3,105-6; Astr. and Astrophysics, vol. xi., p. 720.

[732] Proc. Roy. Irish Acad., vol. ii., No. 2, 1892.

[733] Am. Jour. of Sc., vol. xxi., p. 187.

[734] Amer. Jour. of Science, vol. v., p. 245, 1898.