Illustrations in Black and White
| PAGE | |
| THE MOON | 24 |
| AN ECLIPSE OF THE MOON | 28 |
| AN ECLIPSE OF THE SUN | 29 |
| THE MOON RAISING THE TIDES | 30 |
| COMPARATIVE SIZES OF THE PLANETS | 35 |
| DIFFERENT PHASES OF VENUS | 51 |
| ORBITS OF MARS, THE EARTH, VENUS, AND MERCURY | 55 |
| MAP OF MARS | 56 |
| ORBITS OF THE EARTH AND MARS | 63 |
| JUPITER AND HIS PRINCIPAL MOONS | 72 |
| SUN-SPOTS | 98 |
| A GREAT COMET | 118 |
| THE GREAT NEBULA IN ANDROMEDA | 202 |