ILLUSTRATIONS
Reading edition
Percival Lowell, Age 61 Frontispiece
Percival Lowell and His Biographer Facing Page 4
Percival Lowell and the Members of the Korean Embassy 16
Observing and Drawing the Canals of Mars 116
Gaps in the Asteroids and the Rings of Saturn 166
Predicted and Actual Orbits of Pluto Page 199
BIOGRAPHY OF PERCIVAL LOWELL
1