, 20

Bridstow, 87, 88, 94

Briggs, 119

Brinkley, 192

British Association, 63

Bruennow, 193

California, 26

Cambridge (Mass.), 180, 184, 188

Cambridge Observatory, 23, 42, 49, 52, 63, 65, 66, 135, 193

Cambridge University, 68-71, 114

Cape Observatory, 123, 124, 130

Cards, 11

Cassini II., 156

Catania, 130

Ceres, 14-22

Chacornac, 124

Challis, 49-54, 63-68, 71, 85, 218

Chandler, S. C., 118, 177-217

Chapman's "Homer," 2

Chicago, 157

Chromosphere, 170

Clarke, C. C., 2

Coelostat, 94

Columbus, 63

Comet, 4-8, 88, 108, 117, 123, 125

Commission, planetary, 27

Common, A. A., 124, 127

_Compte Rendu_, 62

Comstock, 202

Conference, Astrographic, 125-136

Copernicus, 79, 95

Cordoba, 130, 199

Cornu, 210-213

Corona, 170-175

_Cosmos_ (Humboldt's), 160

Delambre, 157

Deviation of Pole, 187

Disc of Neptune, 44, 64, 79

Disc of Uranus, 4-7

Dorpat, 192

Doublet (photographic), 127-129

Draconis, [gamma], 96-104

Draconis, [beta], 193

Driessen, 23

Dry plate, 122

Dublin, 192

Earthquakes, 215

Earth's Pole, 177-217

Eccentricity, 41, 83

Eclipses, 170-176

Edinburgh, 143

Eduarda, 26

Egeria, 22

Endymion, 25

Eriphyla, 26

Eros, 25, 26, 28, 35, 37, 68

Eulerian, 200, 209

Evelyn, 26

Exposure, times of, 122, 131

Faculae, 170

Faraday, 201

Flamsteed, 39, 53, 115

Fleming, Mrs., 142

Flora, 22

Foulkes, Martin, 94

French Academy, 43, 51, 62

Galileo, 95, 163

Galle, 44, 45, 47, 66, 67, 83

Gasparis, 22

Gauge (railways), 56

Gauss, 17-20

Geminorum, H., 4

George III., 8, 10

"Georgian," 11

_Georgium Sidus_, 8, 10, 11

Gill, Sir D., 32, 34, 35, 123

Gilliss, 32

Gotha, 20

Gould, 32

Graham, 22, 23

Gravitation, law of, 38, 45, 59, 84, 105

Greaves, 119

Greenwich Observatory, 48-64, 88, 89, 114-117, 130, 160-169,
182, 192, 193, 206, 213

Gregory, 93, 119

Hale, G. E., 170, 171

Hall, A., 184, 185

Halley, 88-92, 108, 112-116, 119

Hansen, 41, 59

Harkness, 184

Hartwig, 142

Harvard College Observatory, 128, 142, 144, 145

Hebe, 22

Hegel, 15

Heidelberg, 145

Heliometer, 32, 34

Helium, 109

Helsingfors, 130

Hencke, 22, 23, 64, 153, 219