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

by Agnes M. Clerke

[1031] Bull. Astr., t. v., p. 180.

[1032] Annuaire, Bruxelles, 1881, p. 243.

[1033] Johns Hopkins Un. Circular, January, 1895; Observatory, vol. xviii., p. 127.

[1034] Harvard Annals, vol. xi., part ii., p. 294.

[1035] Astr. Nach., Nos. 2,724-5.

[1036] Month. Not., vol. lxi., p. 69.

[1037] Astroph. Jour., vol. vii., p. 25.

[1038] Spectra der Planeten, p. 24.

[1039] Tome i., p. 93.

[1040] Berlinische Monatsschrift, 1785, p. 211.