- 1Preface
- 2Chapter I — Astronomy a Living Science
- 3Chapter II — The First Astronomers
- 4Chapter III — Pyramid, Tomb, and Temple
- 5Chapter IV — Origin of Greek Astronomy
- 6Chapter V — Measuring the Earth — Eratosthenes
- 7Chapter VI — Ptolemy and His Great Book
- 8Chapter VII — Astronomy of the Middle Ages
- 9Chapter VIII — Copernicus and the New Era
- 10Chapter IX — Tycho, the Great Observer
- 11Chapter X — Kepler, the Great Calculator
- 12Chapter XI — Galileo, the Great Experimenter
- 13Chapter XII — After the Great Masters
- 14Chapter XIII — Newton and Motion
- 15Chapter XIV — Newton and Gravitation
- 16Chapter XV — After Newton
- 17Chapter XVI — Halley and His Comet
- 18Chapter XVII — Bradley and Aberration
- 19Chapter XVIII — The Telescope
- 20Chapter XIX — Reflectors — Mirror Telescopes
- 21Chapter XX — The Story of the Spectroscope
- 22Chapter XXI — The Story of Astronomical Photography
- 23Chapter XXII — Mountain Observatories
- 24Chapter XXIII — The Program of a Great Observatory
- 25Chapter XXIV — Our Solar System
- 26Chapter XXV — The Sun and Observing It
- 27Chapter XXVI — Sun Spots and Prominences
- 28Chapter XXVII — The Inner Planets
- 29Chapter XXVIII — The Moon and Her Surface
- 30Chapter XXIX — Eclipses of the Moon
- 31Chapter XXX — Total Eclipses of the Sun
- 32Chapter XXXI — The Solar Corona
- 33Chapter XXXII — The Ruddy Planet
- 34Chapter XXXIII — The Canals of Mars
- 35Chapter XXXIV — Life in Other Worlds
- 36Chapter XXXV — The Little Planets
- 37Chapter XXXVI — The Giant Planet
- 38Chapter XXXVII — The Ringed Planet
- 39Chapter XXXVIII — The Farthest Planets
- 40Chapter XXXIX — The Trans-Neptunian Planet
- 41Chapter XL — Comets — The Hairy Stars
- 42Chapter XLI — Where Do Comets Come From?
- 43Chapter XLII — Meteors and Shooting Stars
- 44Chapter XLIII — Meteorites
- 45Chapter XLIV — The Universe of Stars
- 46Chapter XLV — Star Charts and Catalogues
- 47Chapter XLVI — The Sun’s Motion Toward Lyra
- 48Chapter XLVII — Stars and Their Spectral Type
- 49Chapter XLVIII — Star Distances
- 50Chapter XLIX — The Nearest Stars
- 51Chapter L — Actual Dimensions of the Stars
- 52Chapter LI — The Variable Stars
- 53Chapter LII — The Novæ, or New Stars
- 54Chapter LIII — The Double Stars
- 55Chapter LIV — The Star Clusters
- 56Chapter LV — Moving Clusters
- 57Chapter LVI — The Two Star Streams
- 58Chapter LVII — The Galaxy or Milky Way
- 59Chapter LVIII — Star Clouds and Nebulæ
- 60Chapter LIX — The Spiral Nebulæ
- 61Chapter LX — Cosmogony
- 62Chapter LXI — Cosmogony in Transition
Astronomy: The Science of the Heavenly Bodies
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