Reports on the observations of the total eclipse of the sun, December 21-22, 1889 and of the total eclipse of the moon, July 22, 1888 : to which is added a catalogue of the library

Reports on the observations of the total eclipse of the sun, December 21-22, 1889 and of the total eclipse of the moon, July 22, 1888 : to which is added a catalogue of the library