7.htm.html#Page_296" class="pginternal">296 Ireis, 224 Iron quadrant, 73 Isobars, 237 Jupiter, satellites of, 19, 296; atmosphere of, 279 Keill, John, 74 Kendall, Larcum, 166 Kepler, laws of, 64 Kew, photo-heliograph, the, 252 Kinnebrook, David, 176 Kirchhoff's use of spectroscope, 267 Latitude, finding the, 18 Ledgers, chronometer, romance of, 176 Leverrier, his discovery of Neptune, 217 Libraries, 132 Linacre, G., 28 Lindsay, Thomas, quoted, 204 Litchford, W., 28 Local apparent time, 22 Longitude, finding the, 18; at sea, problem of, 86; determination of, 173 Longitude nought, 148 Lower computing room, 128 Lunars, method of, 86 Magnetic Department, work of, 133; description of, 228, et seq. Magnetic inclination and declination, 246 —— needles, movements of, 247, 262 —— observatory, 132 —— pavilion, 245 —— storms, 248, 262 Mars, distance of, 223; atmosphere of, 279; Maskelyne, Nevil, fifth Astronomer Royal, 85; practical work of, 86; Astronomer Royal, 91; his work, 92; his publications, 92; his observations and work, 92, et seq.; his death, 94; his character, 97; recommends his successor, 97; his mural circle, 101 Mean solar clock, 160 Mean time, 152 Meldrum, Dr., on sun spots, 263 Meridian, the, 149 Merz telescope, 279 Meteorological Department, work of, 133; description of, 228, et seq. Micrometers, use of, 309 Microscopes, use of, 188 Milky Way, 288 Miller, Professor, 271; classes of, 287; census of, 287; photographs of, 288, et seq.; motions of, 303, 315 Story, Mr. A. M., 97 Sun, distance of the, 74, 224; spots on, 251, et seq., 281; eclipses of, 263, et seq.; chromosphere of, 268; motions of, 315 Sunshine recorder, 238 Swiss time, 155 Tebb, Mr. W., 58 Tebbutt's comet, 280 Telescope, the great transit, 156 ——, 28-inch, 275 ——, astrographic, 289 ——, Shuckburgh, 309 ——, Thompson, 256, 279, 296 ThalÈn, 268 Thermometer, use of, 192, 234 Thome, Dr., 287 Thompson photo-heliograph, 256, 279, 296 Time ball, 162 —— Department, the, 146, et seq. —— desk, 161 ——, foreign, 153 —— signals, 162 —— standard, 21 Transit, Halley's, 73 Transit circle, the, 114; mode of observation with, 188, et seq. Transit circle, Troughton's, 98 —— Department, 181, et seq. —— observations, number of, 140 —— pavilion, 126, 175 —— room, 128, 147 Troughton's transit circle, 98 Uranus, discovery of, 217; atmosphere of, 279; satellites of, 296 Vanes, use of, 238 Venus, distance of, 223 Victoria, 224 Visitors, the Board of, 53; censures Pond, 99; work of, 106; constitution of, 144 Visitors to Observatory, 175 Warrant for Flamsteed's salary, 39 LONDON: PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, Transcriber's note:Minor typographical errors have been corrected without note. Irregularities and inconsistencies in the text have been retained as printed. The illustrations have been moved so that they do not break up paragraphs, thus the page number of the illustration might not match the page number in the List of Illustrations. Mismatched quotation marks were not corrected if it was not clear where the missing quotation mark should be placed. 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