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

by Agnes M. Clerke

[991] Flammarion, La Planète Mars, p. 574.

[992] Mémoires Couronnés, t. xxxix.

[993] Lockyer, Nature, vol. xlvi., p. 447.

[994] Mem. Spettr. Italiani, t. xi., p. 28.

[995] Bull. Astr., t. iii., p. 324.

[996] Journ. Brit. Astr. Ass., vol. i., p. 88.

[997] Publ. Pac. Astr. Soc., vol. ii., p. 299; Percival Lowell, Mars, 1896; Annals of the Lowell Observatory, vol. ii., 1900.

[998] Old and New Astr., p. 545.

[999] L'Astronomie, t. xi., p. 445.

[1000] La Planète Mars, p. 588.