The Moon. First Quarter
Photographed by Loewy and Puiseux, February 13, 1894. | Frontispiece | | FACING
PAGE | Spiral Nebula in Constellation Leo
Photographed by Keeler, February 24, 1900. | 26 | Nebula in Andromeda
Photographed by Barnard, November 21, 1892. | 28 | The "Dumb-Bell" Nebula
Photographed by Keeler, July 31, 1899. | 34 | Star-Field in Constellation Monoceros
Photographed by Barnard, February 1, 1894. | 84 | Solar Corona. Total Eclipse
Photographed by Campbell, January 22, 1898; Jeur, India. | 108 | | Forty-Inch Telescope, Yerkes Observatory | 170 | | Yerkes Observatory, University of Chicago | 176 |
PRACTICAL TALKS
BY AN ASTRONOMER
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