CONTENTS.

PAGE
[CHAPTER I.]
THE FIRST BEGINNINGS OF ASTRONOMY[1]
[CHAPTER II.]
ASTRONOMY OF THE CELTS[29]
[CHAPTER III.]
ORIGIN OF THE CONSTELLATIONS[49]
[CHAPTER IV.]
THE ZODIAC[89]
[CHAPTER V.]
THE PLEIADES[111]
[CHAPTER VI.]
THE NATURE AND STRUCTURE OF THE HEAVENS ACCORDING TO THE ANCIENTS[138]
[CHAPTER VII.]
THE CELESTIAL HARMONY[161]
[CHAPTER VIII.]
ASTRONOMICAL SYSTEMS[179]
[CHAPTER IX.]
THE TERRESTRIAL WORLD OF THE ANCIENTS.—COSMOGRAPHY AND GEOGRAPHY[231]
[CHAPTER X.]
COSMOGRAPHY AND GEOGRAPHY OF THE CHURCH[258]
[CHAPTER XI.]
LEGENDARY WORLDS OF THE MIDDLE AGES[300]
[CHAPTER XII.]
ECLIPSES AND COMETS[330]
[CHAPTER XIII.]
THE GREATNESS AND THE FALL OF ASTROLOGY[360]
[CHAPTER XIV.]
TIME AND THE CALENDAR[387]
[CHAPTER XV.]
THE END OF THE WORLD[418]

An Astronomer at Work.