CHAPTER I

.--EARLIEST STAGES OF ASTRONOMY.

_Sect._ 1. Formation of the Notion of a Year. 112 _Sect._ 2. Fixation of the Civil Year. 113 _Sect._ 3. Correction of the Civil Year (Julian Calendar). 117 _Sect._ 4. Attempts at the Fixation of the Month. 118 _Sect._ 5. Invention of Lunisolar Years. 120 _Sect._ 6. The Constellations. 124 _Sect._ 7. The Planets. 126 _Sect._ 8. The Circles of the Sphere. 128 _Sect._ 9. The Globular Form of the Earth. 132 _Sect._ 10. The Phases of the Moon. 134 _Sect._ 11. Eclipses. 135 _Sect._ 12. Sequel to the Early Stages of Astronomy. 136

## CHAPTER II .--PRELUDE TO THE INDUCTIVE EPOCH OF HIPPARCHUS. 138

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