CONTENTS
| PAGE | ||
| [CHAPTER I] Uranus and Eros | [1] | |
| [CHAPTER II] The Discovery of Neptune | [38] | |
| [CHAPTER III] Bradley’s Discoveries of the Aberration of Light and of the Nutation of the Earth’s Axis | [86] | |
| [CHAPTER IV] Accidental Discoveries | [121] | |
| [CHAPTER V] Schwabe and the Sun-Spot Period | [155] | |
| [CHAPTER VI] The Variation of Latitude | [177] | |
| INDEX | [221] |
LIST OF PLATES
| PLATE | |||||
| I. | Portrait of J. C. Adams | To face | page | [22] | |
| II. | Portrait of A. Graham | " | " | [22] | |
| III. | Portrait of U. J. Le Verrier | " | " | [60] | |
| IV. | Portrait of J. G. Galle | " | " | [60] | |
| V. | Corner of the Berlin Map by the use of which Galle found Neptune | " | " | [82] | |
| VI. | Astronomers Royal | [Frontispiece] | |||
| VII. | Great Comet of Nov. 7, 1882 | To face | page | [122] | |
| VIII. | The Oxford New Star | " | " | [142] | |
| IX. | Nebulosity round Nova Persei | " | " | [146] | |
| X. | Sun-spots at Greenwich, Feb. 18 and 19, 1894 | " | " | [158] | |
| XI. | Sun-spots at Greenwich, Feb. 20 and 21, 1894 | " | " | [162] | |
| XII. | Number of Sun-spots compared with Daily Range of Magnetic Declination and Daily Range of Magnetic Horizontal Force | " | " | [164] | |
| XIII. | Greenwich Magnetic Curves, 1859-60 | " | " | [166] | |
| XIV. | Greenwich Magnetic Curves, 1841-1860 | " | " | [166] | |
| XV. | Sun-spots and Turns of Vane | " | " | [170] | |