Nature, jfuriei), iSKl] 



Temperature, on a Meihod of Deteniiining the Critical, for any 

 Liquid and its Vapour, without Mechanism, Sir William 

 Thomson, F.R.S., 87 



Temperature, Low, Rev. S. J. Perry, F.R.S., 268 



Temperatures, Electrical Thermometer for Determining, at a 

 Distance, Horace T. lirown, 464 



Tennant (Prof. James), Deatli of, 41S 



Theorem, General, in Kinematics, J. J. Walker, 125; Geo. M. 

 Minchin, 170 



"Thermal Bar," M. P'orel on, 86 



Thermic and Optic Behaviour of Gases under the Influence of 

 the Electric Discharge, Dr. Arthur Schuster, F.R.S., 258 



Thermoelectricity, Herr Exner on, 44 



Thermo-magnetic Thermoscope, a New, 372 



Thermometer, Electrical, for Determining Temperatures at a 

 Distance, Horace T. Brown, 464 



Thermometers, Standard, 4C0 



Thompson (Prof, Silvanus P.), Bottomley's Experiments with 

 Vacuum Tubes and the Aurora, 2S9 



Thomson and Keith Johnston's African Expedition, 38 



Thomson (Joseph), Notes on the Geology of East Central Africa, 

 102 ; Report on His East African Expedition, 134 



Thomson (Sir William), on a Disturbing Infinity in Lord Ray- 

 leigh's Solution tor Waves in a Plane Vortex Stratum, 45, 

 70; on an Experimental Illustration of Miiiiumum Energy, 

 69; on a Method of Determining the Critical Temperature 

 for any Liquid and its Vapour v\ ithout Mechanism, S7 ; Tide 

 Predicter, 482, 578 ; on a Method of Measuring Contact 

 Electricity, 567 



Thomson (Sir Wyville, F. R.S.), Natural Selection, Charles 

 Darwin, F.R.S., 32, 53; Geological Changes of Level, 33 



Thresher, the, Francis P. Pa coe, 35 



Thulium, Separation of, 86 



Tidal Friction in Connection with the History of the Solar 

 System, G. H. Darwin, F.R.S., 3S9 



Tide Predicter, Sir William Thomson, F.R.S., 482, 578; Ed- 

 ward Roberts, 467, 555 



Tiddeman (R. H.), Preliistoric Europe, 433, 528 



Timbuctoo, Dr. Lenz on, 544 



Time, Universal, aud the Russian Geographical Society, 255 



Time-Signal Apparatus, a New, 347 



Time of Day in Paris, 367 



Times, the, on Dr. Spottiswoode's Address at the Royal Society, 

 130 



Tomlinson (Herbert), the Photophone, 457 



Tonbridge School, Science at, 516 



Topler Air-Pump, Improved Form of, 6l6 



Torsion, Wire, Prof. John Perry and Prof. W. E. Ayrton, 35 



Total Solar Eclipse of 1878, 591 



Towion (]ohn Ttiomas), Death of, 231 



Tracks, Ice Casts of, J. T. Brownell, 484 



Traill (D. ), Aurora and Electric Storm of January 31, 348 



Transactions and Proceedings of the Botanical Society of Edin- 

 burgh, 522 



Transactions of the York>hire Naturalists' Union, 161 



Transit of Venus Commission, 231, 388, 467 



Transylvania, Earthquake Shock at, 232 



Trichocera, Winter Gnats, Rev. A. E. Eaton, 554 



Trichopterenlarven, Ueber die von den, der Provinz Santa 

 Catharina verfertigen Gebiiuse, Dr. Fritz Muller, 192 



Trimen's Journal of liotany, 259 



Tripier (M.), appointed Director of the Algiers Observatory, 

 107 



Tropics, Abnormal Variations of Barometric Pressure in the, 

 and their Relainin to Sun-Spots, Rainfall and Famines, Fred. 

 Chambers, 88, 107, 399 ; E. Douglas Archibald, 399 



Tropics, the Probatiiliiy of Phylloxera Crosing the, 147 



Troy, Minerva Ornaments at, v. Net-Sinkers, Prof. E. W. 

 Claypole, 292 



Tucker (R.), Obituary Notice of Michael Chasles, 234 



Tuning- Fork, the Influence of, on a Garden Spider, C. V. 

 Boys, 149 



Tunnel, the Arlberg, 321 



Tylor (Eduard B., F.R.S.), the Aryan Village, 525 



Tyndall (I'rol., F.K.S.), Action of an Intermittent Beam of 

 Radiant Heat upon Ga-.eous Matter, 374 



Types and Affinities, Indo-Chinese and Oceanic Races, A. H. 

 Keane, 199, 220, 247, 271 



relte, the Tufted, 37 



"Unconscious Memory," Samuel Butler, George J. Romanes, 



F.K.S., 28s, 335; Samuel Butler, 288, 312; Dr. Ernst 



Krause, 288 ; T. R. R. Stebbing, 335 

 Union Geographique du Nord de la France, 398 

 United States Weather Maps, 39, 147 

 United States, Meteorology in, 183 

 U.S. Geological and Geographical Survey of the Territories, 



1879-80, 481 

 United States, Fish-Culture in the, 532 

 University College, Prof. Max MtiUtr at, 381 

 University Intelligence, 23, 47, 71, 87, 115, 139, 160, 186, 211, 



259, 282, 330, 354, 377, 401, 424, 473, 498, 544, 569, 593, 



619 

 Urania, 383 



Uranium, New Com|!Ouuds of, 86 

 Uranus, Herschell's First Observation of, 299 



Vacuum Tubes, Experiments with, J. T. Bottomley, 218, 243; 

 Bottomley's Experiments with, and the Aurora, Prof. Silvanus 

 P. Thompson, 289 ; Experiments v. ilh, 442 



Valparaiso, Earthquake in, 20 



Vanadium, the Sulphides of, 208 



Vancouver Island, Climate of, Capt. Edmund H. Verney, 147 ; 

 William Pengelly, F.R.S., 267; Dr. George M. Dawson, 

 385 ; and Bournemouth, Climates of, Alfred K. Wallace, 169 



Vapours, Specific Volume of, 397 



Vapours and Gases : their Dis olving Power on one another, 86 ; 

 Spectra of. Influence of Pressure and Temperature on, G. 

 Ciamiciaii, 160 



Variable Stars, 21, 115, 206, 362, 493, 517, 542, 555 



Vaucauson, Exhibition of his MS., &c., in Pans, 63 



Veeder (M. A.), Meteors, 147 



l^ega Fund, the, 160 



Ventilation, Bedroom, Mr. Lawson Tait on, 157 



Venus: Transit of, Commission, 231, 388; Shadows Cast by, 

 Chas. T. Whitmell, 579 



Verglas in Italy, 517 



Verney (Capt. Edmund II.), Climate of Vancouver Island, 147 



Vertebrates, Italian, at Florence, 41 



Vesuvius : Flow of Lava from the Crater of, 20 ; the Eruption 

 of. 43. 83, 440, 542 



Vibration of Telegraph Wires during Frost, T. Mellard Reade, 

 314; F. T. Mott, 33S 



Vicars (George Rayleigh), Vox Angelica, 34, 77 ; Future Deve- 

 lopment of Electrical Appliances, 528 



Victoria (Philosophical) Institute, 236, 307, 356, 404, 500, 54$ 



Victoria, Royal Society of, 64 



Victoria University, 593 



Victoria Station, Jablochkoff Light at, 64 



Vienna : Geographical Society, 22 ; Imperial Academy of 

 Sciences, 48, 72, 96, 140, 164, 188, 284, 308, 356, 380, 404, 

 476, 500, 54S, 596 ; Imperial Institute of Geology, 164, 476, 

 596 ; Observatory, the New Telescope, 469 



Vines (Sydney H.), the Works of Carl von Niigeli, 78 ; Chloro- 

 phyll, 561 



Viscosity of Gases at High Exhaustions, W. Crookes, F.R.S. 



42'. 443 

 Vivisection, Charles Darwin, F.R.S. , on, 583 

 Volcanoes, Vesuvius, 20, 43, 83, 440, 542 

 Voldifjord, appearance of a Colony of Beavers on the, 84 

 Vox Angelica, George Rayleigh Vicars, 34, 77 



Wagner (Prof. Johannes Rudolf von). Obituary Notice of, II 



Wagtail, Migration of, 529; Prof. E. W. Claypole, 387; Dr. 

 John Rae, F.R.S., 411 



Walker (J. J.), a General Theorem in Kinematics, 125 ' -* i 



Wallace (Alfred R ), Geological Climates, 124, 217, 266; New 

 Guinea, 152, 175; Climates of Vancouver Island and Bourne- 

 mouth, 169 ; Correction of an Error in " Island Life," 19S } 

 Pension Conferred upon, 275 



Wallace (Samuel J.), Heat of Stellar Masses, 579 



Wallich (G. C), Sparrow and Division of Labour, 579 



Walsingham (Lord), Fertilisation of Yucca, 76 



Ward (Thoma-), Landslips, 144 ; Subsidence of Land Caused 

 by Natural Brine Springs, 388 



Ward (Col. Foster), on some Remarkable Hailstones, 233 



Warnings, Earthquake, 529 



Washington Society of Anthropology, 84 



Wasps, Bees, Ants, and. Observations on. Sir J. Lubbock, Bart., 

 F.R.S., 255 



