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

by Agnes M. Clerke

[1596] Publ. Yerkes Observatory, vol. i., 1900.

[1597] Annals Cape Observatory, vol. ii., pt. ii.

[1598] Astr. Jour., Nos. 431-2.

[1599] W. J. Hussey, Publ. Astr. Pac. Soc., No. 74.

[1600] Astr. Jour., No. 258.

[1601] Sitzungsberichte, Berlin, October 26, 1893.

[1602] Annales de l'Obs. de Nice, t. ii.

[1603] Washington Observations, 1888, App. i.

[1604] Publ. Lick Observatory, vol. v., 1901.

[1605] T. Lewis, Observatory, vol. xvi., p. 312.