I. Gottingen, 1880.]

[Footnote 1288: _Meteor._, lib. i., cap. 6.]

[Footnote 1289: _Mem. Soc. Phys. de Geneve_, t. xxviii., p. 23.]

[Footnote 1290: _Annales de l'Obs. de Moscou_, t. vii., pt. i., p. 60.]

[Footnote 1291: Bredikhine, _Annales_, t. viii., p. 68.]

[Footnote 1292: _Am. Jour. of Sc._, vol. xxii., p. 305.]

[Footnote 1293: Messrs. Burton and Green observed a dilatation of the
stellar image into a nebulous patch by the transmission of its rays
through a nuclear jet of the comet. _Am. Jour. of Sc._, vol. xxii., p.
163.]

[Footnote 1294: _Archives des Sciences_, t. viii., p. 535. _Cf._
Perrine's negative results for Swift's comet in 1899, _Astr. Nach._, No.
3,602.]

[Footnote 1295: Riem concluded in 1896 for a definitive period of 2,429
years; _Observatory_, vol. xix., p. 282.]

[Footnote 1296: Holden, _Publ. Astr. Pac. Soc._, vol. ix., p. 89.]

[Footnote 1297: _Annuaire_, Paris, 1882, p. 781.]

[Footnote 1298: _Annuaire_, 1882, p. 766.]

[Footnote 1299: _Am. Jour. of Sc._, vol. xxii., p. 134.]

[Footnote 1300: _Report Brit. Assoc._, 1881, p. 520.]

[Footnote 1301: _Month. Not._, vol. xlii., p. 14; _Am. Jour. of Sc._,
vol. xxii., p. 136.]

[Footnote 1302: Piazzi Smyth, _Nature_, vol. xxiv., p. 430.]

[Footnote 1303: _Astr. Nach._, No. 2,395.]

[Footnote 1304: _Ibid._]

[Footnote 1305: _Astr. Nach._, No. 2,411.]

[Footnote 1306: _Month. Not._, vol. xlii., p. 49.]

[Footnote 1307: _Astr. Nach._, No. 2,414.]

[Footnote 1308: _Copernicus_, vol. ii., p. 229.]

[Footnote 1309: _Astr. Nach._, Nos. 2,434, 2,437.]

[Footnote 1310: _Ibid._, No. 2,441.]

[Footnote 1311: _Report Brit. Assoc._, 1882, p. 442.]

[Footnote 1312: J. J. Parsons, _Am. Jour. of Science_, vol. xxvii., p.
34.]

[Footnote 1313: _Astr. Nach._, No. 2,441.]

[Footnote 1314: _Observatory_, vol. v., p. 355. The transit had been
foreseen by Mr. Tebbutt, but it occurred after sunset in New South
Wales.]

[Footnote 1315: _Observatory_, vol. v., p. 354.]

[Footnote 1316: Gould, _Astr. Nach._, No. 2,481.]

[Footnote 1317: Flammarion, _Comptes Rendus_, t. xcv., p. 558.]

[Footnote 1318: Captain Ray's sextant observation of the comet of 1843,
a few hours before perihelion, was too rough to be of use.]

[Footnote 1319: _Astr. Nach._, No. 2,538.]

[Footnote 1320: _Nature_, vol. xxix., p. 135.]

[Footnote 1321: _Astr. Nach._, No. 2,482.]

[Footnote 1322: _Vierteljahrsschrift Astr. Ges._, Jahrg. xxiv., p. 308;
_Bull. A