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

by Agnes M. Clerke

[1576] Month. Not., vol. lx., p. 381.

[1577] D. Klumpke, Observatory, vol. xv., p. 305.

[1578] Gilbert, Sid. Mess., vol. i., p. 288.

[1579] Astr. Papers for the Amer. Ephemeris, vol. viii., pt. ii.

[1580] Nature, vol. xxiv., p. 91; Dunsink Observations, pt. v., 1884.

[1581] Elkin, Report for 1891-92, p. 25; Newcomb, The Stars, p. 151.

[1582] Annals of the Cape Observatory, vol. viii., pt. ii. Some of the measures were made by Messrs. Finlay and de Sitter.

[1583] Astr. Nach., No. 3,483; Observatory, vol. xxi., p. 180.

[1584] Annalen der Sternwarte in Leiden, Bd. vii.

[1585] Report of Harvard Conference in 1898 (Snyder).