70. Photograph of Encke's Comet. (Barnard, Y.O.)
Note: this image is a thumbnail only.
69. Orbit of a comet. (Copyright)
68. How planetoids are discovered. (Barnard, Yerkes Obs.)
67. Photograph of Neptune and its moon. (Yerkes Obs.)
66. Neptune and earth, relative sizes.
65. Uranus and moons, photograph. (Lowell Obs.)
64. Uranus and earth, relative sizes.
63. An Amateur and his telescope. (A. R. Hassard, Toronto)
62. Photographs of Saturn. (Barnard at Mt. Wilson)
61. Four photographs of' Saturn, showing phases. (Lowell Obs.)
