List of Illustrations.
xiii
Fig.
page
89. | The Great Comet of 1901 (ii.). (Lunt.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
158 |
90. | Brooks's Comet of 1902 (i.) (Brooks.} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
160 |
91. | The various Sections of a Cone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
160 |
92. | Portrait of Sir Isaac Newton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Plate XXV. |
faces 160 |
93. | Diagram of a Parabolic and an Elliptic Orbit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
161 |
94. | The Construction of an Ellipse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
167 |
95. | Discovery Field of Brooks's Comet of 1890 (ii.) (Brooks.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
169 |
96. | The Brooks-Borelly Comet of 1900 (ii.) (Brooks.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
169 |
97. | Five Parabolas at ½, 1, 2, 3, and 4 Radii of the Earth's Orbit. (Gibbs.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
170 |
98. | Spectra of Olefiant Gas and Winnecke's Comet, 1868 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
176 |
99. | Morehouse's Comet of 1908 (iii.) on Dec. 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Plate XXVI. |
faces 188 |
100-1. | Photograph and Spectrograph of Morehouse's Comet of 1908 (iii.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ." |
188 |
102. | Orbit of the Leonids of Nov. 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
193 |
103. | The Meteor Radiant Point in Leo, Nov. 13, 1866 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
195 |
104. | Position of Biela's Comet, 1798, 1838, 1872 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
198 |
105. | Discovery of a Comet at Greenwich Observatory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Plate XXVII. |
faces 208 |
106. | Eclipse of the Sun of May 17, 1882, showing an Unknown Comet. (Ranyard.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
227 |