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

by Agnes M. Clerke

[1224] A. S. Herschel, Report Brit. Ass., 1873, p. 390.

[1225] Humboldt, Cosmos, vol. i., p. 114 (Otté's trans.).

[1226] Month. Not., vol. xxxiii., p. 128.

[1227] Even this was denied by Bruhns, Astr. Nach., No. 2,054.

[1228] Am. Jour., vol. xxxi., p. 425.

[1229] Month. Not., vol. xlvi., p. 69.

[1230] In Schiaparelli's opinion, centuries must have elapsed while the observed amount of scattering was being produced. Le Stelle Cadenti, 1886, p. 112.

[1231] Astr. and Astroph., vol. xi., p. 943.

[1232] Bull. de l'Acad. St. Petersbourg, t. xxxv., p. 598. 1894.

[1233] Observatory, vol. xvi., p. 55.