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

by Agnes M. Clerke

[1267] Astr. Nach., Nos. 1,172-4.

[1268] Berichte Sächs. Ges., 1871, p. 174.

[1269] Natur der Cometen, p. 124; Astr. Nach., No. 2,086.

[1270] Annales de l'Obs. de Moscou, t. iii., pt. i., p. 37.

[1271] Bull. Astr., t. iii., p. 598. The value of the repellent force for the comet of 1811 (which offered peculiar facilities for its determination) was found = 17·5.

[1272] Faye, Comptes Rendus, t. xciii., p. 13.

[1273] Annales, t. v., pt. ii., p. 137.

[1274] Am. Jour. of Sc., vol. xxxii. (2nd ser.), p. 57.

[1275] Astr. Nach., No. 2,082.

[1276] Annales de l'Obs. de Moscou, t. vi., pt. i., p. 60.