[1526] Reproduced in Knowledge, April, 1893.
[1527] Unless an exception be found in the Pleiades nebulæ, which may be assumed to share the small apparent movement of the stars they adhere to.
[1528] Abhandl. Akad. der Wiss., Leipzig, 1857, Bd. iii., p. 295.
[1529] Month. Not., vol. lii., p. 31.
[1530] Proc. Roy. Soc., 1874, p. 251.
[1531] Publ. Astr. Pac. Soc., vol. ii., p. 278.
[1532] System of the Stars, p. 257.
[1533] Proc. Roy. Soc., vol. xlix., p. 399.
[1534] Potsdam Publ., Bd. vii., Th. i.
[1535] Astr. Nach., No. 2,714; Schönfeld, V. J. S. Astr. Ges., Jahrg. xxi., p. 58.