Index 



333 



PAGE 



Tawney, E. B. - - 313 



Teall, J. J. H. - - 311 



Telegraphy : 



Invention of - 187 



Submarine- - 189 



Wireless - - 33 



Telescope, reflecting 52, 54, 169, 



170 



Refracting- - 54, 172 

 Temperature, critical - 140 



Tennant, C. - - 195 



Terrestrial magnetism, see 



under Magnetism. 

 Thales - 8 



Thallium - - 159 



" Theater of Insects " - 220 

 Theobaldus - - - 217 

 Thermodynamics : 



First law 23 



Second law of - 26, 28 

 Thermometer - - 83 



Self-registering - - 288 

 Thin films, thickness mea- 

 sured - - 160 

 Thiselton-Dyer, Sir W. - 249, 

 250, 272 

 Thompson, IB., see Rumford, 



Count. 



Thompson, Vaughan - - 292 

 Thomson, James - 135, 136 

 Thomson, Sir Joseph - 152, 182 

 Thomson,William, see Kelvin, 



Lord. 



Thomson, Wyville - 289, 291 

 Thorpe, Sir E. - - 109, 160 

 Threlkeld, Caleb - 254 



Tides - 177, 178 



Time signals - - 166 



Topsell, E. - 220, 257 



Torpedo 83 



Torsion balance, invention 



of 86, 87 



Townley, R. - 75, 95 



Tradescant, John, the elder 260 

 Tradescant, John, the younger 261 

 Transit of Venus, see under 



Venus. 



Transpiration of gases - 145 

 Trevithick, R. - - 104, 105 



PAGE 



Trinity College, Dublin 137-139 



Turbine : 



Engine - - - 187 



Pumps - 151 



Turner, W. : 



Botany - - 229, 230 



Zoology - - - 256 



Tyndall, J. - 88, 213 



Type printing machine - 191 



Ultra- violet rays - 124 



Uniformi tarian theory - 311 

 University College, founda- 

 tion of - - 143-146 

 Uranus, discovery of - - 91 



Vaccines, first used - - 306 

 Vacuum tubes, invention of 162 

 " Valency " - 148 



Vanadium - 150 



Venus, transit of - 52, 63, 88, 

 167, 207, 209 



Vernier - - 56 



Vertebrate, origin of, re- 

 search - - 303 

 Vesalius - - 219 

 Vines, S. H. - 250 

 Viscosity of gases - 34 

 Vives - - 218, 221 

 Volta, A. - - 80, 106 

 Voltaic arc - 114 

 Vulcanite, invention of - 190 

 Vulcanization - - - 190 



Wallace, A. R. - 

 Wallich, Dr. 

 Wallis, John - 

 Waltire - 

 Ward, Joshua - 

 Ward, M. - 



- 273, 281 



- 291, 292 



- 50 



- 85 



- 194 



- 250, 253 



