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Contents
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| § 35. | The division of the surface of the earth into zones |
37 |
| § 36. | Eratosthenes : his measurement of the earth : and of the obliquity of the ecliptic |
39 |
| § 37. | Hipparchus : his life and chief contributions to astronomy. Apollonius's representation of the celestial motions by means of circles. General account of the theory of eccentrics and epicycles |
40 |
| §§ 38-39. | Hipparchus's representation of the motion of the sun, by means of an eccentric : apogee, perigee, line of apses, eccentricity : equation of the centre : the epicycle and the deferent |
41 |
| § 40. | Theory of the moon : lunation or synodic month and sidereal month : motion of the moon's nodes and apses : draconitic month and anomalistic month |
47 |
| § 41. | Observations of planets : eclipse method of connecting the distances of the sun and moon : estimate of their distances |
49 |
| § 42. | His star catalogue. Discovery of the precession of the equinoxes : the tropical year and the sidereal year |
51 |
| § 43. | Eclipses of the sun and moon : conjunction and opposition : partial, total, and annular eclipses : parallax |
56 |
| § 44. | Delambre's estimate of Hipparchus |
61 |
| § 45. | The slow progress of astronomy after the time of Hipparchus : Pliny's proof that the earth is round : new measurements of the earth by Posidonius |
61 |
| § 46. | Ptolemy. The Almagest and the Optics : theory of refraction |
62 |
| § 47. | Account of the Almagest : Ptolemy's postulates : arguments against the motion of the earth |
63 |
| § 48. | The theory of the moon : evection and prosneusis |
65 |
| § 49. | The astrolabe. Parallax, and distances of the sun and moon |
67 |
| § 50. | The star catalogue : precession |
68 |
| § 51. | Theory of the planets : the equant |
69 |
| § 52. | Estimate of Ptolemy |
73 |
| § 53. | The decay of ancient astronomy : Theon and Hypatia |
73 |
| § 54. | Summary and estimate of Greek astronomy |
74 |
