Part 42 (1/2)

[Footnote 1049: Vogel, _Sp. der Planeten_, p. 33, _note_.]

[Footnote 1050: _Proc. Roy. Soc._, vol. xviii., p. 250.]

[Footnote 1051: _Month. Not._, vol. xl., p. 433.]

[Footnote 1052: _Sitzungsberichte_, Berlin, 1895, ii., p. 15.]

[Footnote 1053: The anomalous shadow-effects recorded by Webb (_Cel.

Objects_, p. 170, 4th ed.) are obviously of atmospheric and optical origin.]

[Footnote 1054: Engelmann, _Ueber die h.e.l.ligkeitsverhaltnisse der Jupiterstrabanten_, p. 59.]

[Footnote 1055: _Month. Not._, vol. xxviii., p. 11.]

[Footnote 1056: _Observatory_, vol. vii., p. 175.]

[Footnote 1057: _Month. Not._, vol. xlviii., p. 43.]

[Footnote 1058: _Publ. Astr. Pac. Soc._, vol. ii., p. 296.]

[Footnote 1059: Pickering failed to obtain any photometric evidence of their variability. _Harvard Annals_, vol. xi., p. 245.]

[Footnote 1060: _Astr. and Astroph._, vol. xii., pp. 194, 481.]

[Footnote 1061: _Annals Lowell Obs._, vol. ii., pt. i.]

[Footnote 1062: _Astr. Nach._, Nos. 2,995, 3,206; _Month. Not._, vols.

li., p. 556; liv., p. 134. Barnard remains convinced that the oval forms attributed to Jupiter's satellites are illusory effects of their markings. _Astr. Nach._, Nos. 3,206, 3,453; _Astr. and Astroph._, vol.

xiii., p. 272.]

[Footnote 1063: _Publ. Astr. Pac. Soc._, vol. iii., p. 355.]

[Footnote 1064: _Astr. Nach._, No. 1,017.]

[Footnote 1065: _Publ. Astr. Pac. Soc._, vol. iii., p. 359.]

[Footnote 1066: _Astr. Nach._, No. 3,432.]

[Footnote 1067: _Astr. Jour._, Nos. 275, 325, 367, 472; _Observatory_, vol. xv., p. 425.]

[Footnote 1068: Tisserand, _Comptes Rendus_, October 8, 1894; Cohn, _Astr. Nach._, No. 3,404.]

[Footnote 1069: _Bull. Ac. R. Bruxelles_, t. xlviii., p. 607.]

[Footnote 1070: _Astr. Nach._, No. 2,294.]

[Footnote 1071: _Ibid._, No. 2,284.]

[Footnote 1072: Denning, _Month. Not._, vol. xliv., pp. 64, 66; _Nature_, vol. xxv., p. 226.]