PUBLISHED BY

THE MACMILLAN COMPANY

64-66 Fifth Avenue, New York

Footnotes:

[1] “Mem. del Reale Inst. Lombardo,” Vol. XII. III della serie III.

[2] Quoted in “Luminous Meteors,” Committee’s Report for 1870-1871, p. 48.

[3] New Observations of the Planet Mercury, Memoirs Amer. Acad. 1897. Vol. XII, No. 4.

[4] “Astronomical Constants,” 1895, pp. 67, 68.

[5] Astr. Nach. No. 3406. Monthly Notices R. A. S., March, 1897.