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

by Agnes M. Clerke

[1041] Month. Not., vol. xiii., p. 40.

[1042] Mem. Am. Ac., vol. viii., p. 221.

[1043] Photom. Unters., p. 303.

[1044] Astr. Nach., No. 1,851.

[1045] Mém. de l'Ac., t. x., p. 514.

[1046] Ibid., 1692, p. 7.

[1047] Month. Not., vol. xliv., p. 63.

[1048] Photom. Unters., pp. 165, 273; Potsdam Publ., No. 30.

[1049] Vogel, Sp. der Planeten, p. 33, note.

[1050] Proc. Roy. Soc., vol. xviii., p. 250.