INDEX.
- Abbadie, M. d’, on earth tremors, 309
- Abbot, General H. L., on the transmission of vibrations, 62
- Abella, M., on the earthquake in the Philippines in 1881, 77
- Activity, on seismic, 6
- Aristotle, on the classification of earthquakes, 41
- Artificial earthquakes, experiments on, 57
- — — intensity of, 61
- Aurora, on the occurrence of, with earthquakes, 264
- Ayrton and Perry, on the effect of soft foundations, 130
- — — on the period of vibration of buildings, 115
- — — on the principle of, 31
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- Barometer, effect of changes of, on earthquakes, 266
- Bertelli, on aurora and earthquakes, 265
- — on earth tremors, 316, 320
- — on the normal tromometer of, 317
- Bittner, A., on the buildings of Belluno, 100
- Bridges, on earthquake, 140
- Brunton, R. H., on buildings in earthquake countries, 123
- Buckle, on the history of civilisation, 1
- Builders, interest of the study of earthquakes to, 3
- Buildings, on cracks in, 98, 108
- — the effect of earthquakes on, 96
- — on the irregular destruction of, 96
- — — effect on the end house in a row, 112
- — — church of St. Augustin at Manilla, 113
- — — relation of destruction of, to earthquake motion, 103
- — — protection of, 143
- — — pitch of the roof of, 110
- — — position of openings in the walls of, 111
- — — swing of, 115
- — — period of vibration of, 115
- — — principle of relative periods in, 116
- — — types of, for earthquake countries, 121
- — — effect of underlying rocks on, 130
- — general conclusions regarding, 144
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- Cacciatore, definition of the, 18
- Caldcleugh, A., on earthquake frequency, 245
- — on barometric height and earthquakes, 266
- Carruthers, J., on earthquakes and tides, 291
- Centrum, definition of, 9
- — on the depth of, 213
- — on the maximum depth of, 218
- Centrum, determination of position of, see origins
- Chaplin, W. S., on the bracket seismometer of, 27
- — on earthquakes and the position of the moon, 252
- Coast line, on the movement of, 160
- Cocks, R., on earthquakes and tides, 290
- Coseismic lines, definition of, 10
- Curves, on microseismic, 321
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- Darwin, Charles, on the movement of coast lines, 160
- — George H., on earth tides, 285
- — on tidal loads, 291
- — on earth pulsation, 330
- — on the effect of fluctuations of barometric pressure, 336
- — experiments at Cambridge, 310
- Delauney, M. J., on the influence of the planets on earthquakes, 261
- Diagonic, definition of, 11
- Diastrophic, definition of, 11
- Direction of motion, from instrumental records, 198
- Distribution, on earthquake, 226
- — examples of, 231
- Disturbance, on the propagation of, 50
- Douglas, J., on South American houses, 126
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- Earth particle, on the velocity and acceleration of, 79
- Earthquake motion, nature of, as deduced from the feelings, 67
- — direction of, derived from instrumental records, 69
- — duration of, 71
- — period of vibration in, 74
- — examples of extent of, 75–77
- — absolute intensity of force in, 83
- — radiation of, 85
- — velocity of propagation of, 87
- Earthquake at Lisbon, velocity of propagation of, 88
- Earthquakes, general examples of effects of, 142
- — geological changes produced by, 161
- — hunting, 187
- — distribution of, 226
- — maps, 189
- — secondary, 248
- — table of, for nineteenth century, 259
- — on the course of, 277–281
- — and tides, 290
- — prediction of, 297–304
- Elastic waves, nature of, 44
- Emergence, angle of, 9
- Energy, dissipation of, in earthquakes, 52
- — seismic, in relation to geological time, 234
- — — table of, 240
- Epicentrum, definition of, 9
- Euthutropic, definition of, 11
- Ewing, J. A., pendulum seismograph of, 25
- — astatic pendulum of, 26
- — bracket seismograph of, 26
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- Falb, R., on the influence of the sun and moon on earthquakes, 286
- Fissures, on the material discharged from, 148
- — on the explanation of, 151
- Focal cavity, definition of, 9
- — on the form of, 221
- Forbes, D., on an earthquake in Mendoza, 151
- Frequency of earthquakes, 243
- Frere, Sir H. Bartle, on geological changes produced by earthquakes, 161
- Fuchs, on sea waves, 176
- — on the movement of the seismic centre, 233
- — on earthquakes and volcanic outbursts, 271
- — on hot springs, 157
- Fumaroles, the effect of earthquakes on, 156
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- Geinitz, Dr., on sea waves, 182
- Geologists, on the interest of seismology to, 2
- Gray, T., astatic pendulum of, 26
- — bracket seismometer of, 27
- — conical pendulum of, 29
- — dead heat pendulum of, 22
- — on the rotation of bodies, 196
- — rolling spheres and cylinders of, 29
- — torsion pendulum seismometer of, 25
- — vertical motion seismometers of, 32, 33
- — and Milne, seismograph of, 38
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- Hattori, I., on the large earthquakes of Japan, 244
- Haughton, Prof., list of active volcanoes of, 227
- — method of finding earthquake origins of, 209
- Hills, on the want of support on the face of, 136
- Höfer, on an earthquake at Belluno, 225
- Hoffmann, F., on the barometer and earthquakes, 267
- Hooke, on earthquake motion, 42
- Hopkins, on the thickness of the earth’s crust, 284
- Humboldt, on meteors and earthquakes, 261
- — on the barometer and earthquakes, 267
- — on volcanoes and earthquakes, 279
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- Imagination, effect of earthquakes on the, 2
- Instruments, direction of motion derived from, 198
- Intensity, on earthquake, 51, 71
- — seismic curve of, for Kioto, 242
- Isoseismic circles, definition of, 10
- — areas, definition of, 10
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- Kluge, on sea waves, 175
- — on earthquake frequency, 246
- — on simultaneous earthquakes, 248
- — on earthquakes and sun spots, 263
- — on earth pulsations, 339
- Kreil, pendulum seismometer of, 25
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- Lakes, on disturbances in, 154
- Land, effect of earthquakes on, 146–162
- — on the reason of movements of, 162
- — on cracks and fissures formed in, 146
- Level, on the use of for earth pulsations, 328
- Literature, on seismic, 6
- — on Japanese earthquake, 7
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- Mallet, R., on area of disturbance as a test of seismic energy, 78
- — on clock stopping, 36
- — list of works on earthquakes of, 5
- — curve of seismic energy of, 238
- — definition of earthquake of, 43
- — on earthquake frequency, 243
- — on the influence of the heavenly bodies on earthquakes, 253
- — on maximum depth of origin, 218
- — on pendulum seismometers, 20
- — projection seismometer of, 17
- — on the Neapolitan earthquake, 69, 77, 83, 97, 103, 132, 142, 218, 280
- — on sea waves, 170
- — on the swing of mountains, 135
- — on propagation from a fissure, 217
- Mallet on the temperature of focal cavity, 84
- Malvasia, M. le Conte, on earth tremors, 316
- Martin, D. S., on the New England earthquake of 1874, 142
- Meizoseismic area, definition of, 10
- Melzi, on curves of microseismic motion, 322
- Meteors, on earthquakes and, 260
- Microseismic movements, on cause of, 324
- Milne, D., on the Lisbon earthquake, 87
- — on earthquake synchronism, 247
- Mitchell, on earthquake motion, 42
- Moon, effect of, on earthquakes, 251, 285
- Mountains, on the swing of, 135
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- Naumann, E., on meteors and earthquakes, 261
- — on sun spots and earthquakes, 263
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- Ocean, on disturbances in, 163–186
- Origin, definition of, 9
- — on the determination of, 187
- — position of, deduced from direction of motion, 192
- — — from destruction of buildings, 194
- — — from rotation of bodies, 195
- — — from time of occurrence, 199
- — — examples of methods of calculating, 200–212
- Oscillations, on earth, 344
- Overturning moment, on the area of greatest, 53
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- Palmer, Col. H. S., on earth tremors, 307
- Palmieri, on clock stopping, 36, 62
- Paul, H. M., on earth tremors, 308
- Perrey, A., on the influence of the moon on earthquakes, 251
- Perrey on the periodicity of earthquakes, 8
- Perry, J., on position of openings in walls, 111
- Physicists, on the interest of earthquakes to, 2
- Planets, influence of, on earthquakes, 260
- Plantamour, M., on earth pulsations, 328
- Pleistoseists, definition of, 10
- Poly, M. A., on earthquakes and sun spots, 263
- — on earthquakes and revolving storms, 294
- Prost, M. le Baron, on earth tremors, 316
- Pulsation, on earth, 4, 326–343
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- Records, on receivers of, 33
- Rivers, on disturbances in, 154
- Rockwood, Prof., on American earthquakes, 6
- Ronaldson, T., on San Francisco houses, 129
- Rossi, M. S. di, on an eruption of gas in the Tiber, 153
- — aurora and earthquakes, 264
- — earth tremors, 317, 320
- — earth oscillations, 346
- — earth pulsations, 327
- — microseismograph of, 318
- — microphonic observations of, 319, 323
- — normal tromometer of, 317
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- Schmidt, on the influence of barometric pressure on earthquakes, 267
- Sea waves, on nature of, 165
- — on cause of, 171
- — seldom produced by earthquakes which originate inland, 175
- — on velocity of propagation of, 177
- — examples of, 179
- Seasons, frequency of earthquakes at different, 254
- Seebach, on the determination of origins, 211
- — on the focal cavity, 224
- Seismic vertical, definition of, 9
- Seismic and volcanic phenomena, relation of, 270
- — — conclusions regarding, 275, 295
- Seismology, definition of, 9
- Seismometers, on various forms of, 17–40
- Seismoscopes, on various forms of, 13–20
- Serpieri, P. A., on distribution of seismic movement, 231
- Shadows, on earthquake, 137
- Spring, on frequency of earthquakes during, 156
- Stukeley, on earthquake motion, 42
- — earthquakes and aurora, 265
- Succussatore, definition of, 10
- Sun, on the effect of, on earthquakes, 253, 285
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- Temperature, effect of changes of, on earthquakes, 268, 294
- Terremoto, definition of, 10
- Thomson, Sir W., on the rigidity of the earth, 285
- Time, on recording apparatus for, 35
- Travagini, F., on earthquake motion, 42
- Trembelores, definition of, 10
- Tremors, on earth, 3, 306–325
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- Understanding, effects of earthquakes on, 2
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- Verbeck, on the ball and plate seismometer of, 31
- Vibration, on the nature of earthquake, 12
- Vorticose motion, on, 70
- — definition of, 10
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- Wagener, on the pendulum seismometer of, 25
- — vertical motion seismometer of, 33
- — list of earthquakes, 76
- Wave paths, definition of, 9
- Waves, on the nature of earthquake, 55
- — on the interference of, 138
- Wells, on the effect of earthquakes on, 156
- Wenthrop, on the New Zealand earthquake of 1855, 79
- West, on the parallel motion seismometer of, 28
- Winslow, on pulsations of the ocean, 334
- Wolf, R., on earthquakes and sun spots, 263
- Woodward, on earthquake motion, 42
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- Young, Dr. T., on earthquake motion, 43
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- Zantedeschi, M. F., on the influence of the sun and moon on earthquakes, 285
- Zöllner, on the bracket seismometer of, 27
- — on earth tremors, 309