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

by Agnes M. Clerke

[913] Astr. Constants, p. 195.

[914] The second volume was published at Göttingen in 1802.

[915] Ueber Rillen auf dem Monde, p. 13. Cf. The Moon, by T. Gwyn Elger, p. 20. W. H. Pickering, Harvard Annals, vol. xxxii., p. 249.

[916] The Moon, p. 73.

[917] Selen. Fragm., Th. ii., p. 399.

[918] Astr. Nach., No. 263 (1834); Pop. Vorl., pp. 615-620 (1838).

[919] Outlines of Astr., par. 431.

[920] Month. Not., vol. xxv., p. 61.

[921] Month. Not., vol. xxv., p. 264.

[922] Astroph. Jour., vol. vi., p. 422.