24 INDEX. 



Page. 



Thomson, J. P., on physical geography of Australia 245 



Thomson, W., ou theory of vortex atoms 104 



Thomson, Sir William, quoted 337 



Thomson, Sir Wy ville, on deep-sea organisms 405 



Thought machine, the brain as 326 



Thurston, E. H., on the animal as a machine 396 



on the animal as a prime mover 297 



Tibetan costume, exhibit of 616 



Tidal action in Arctic seas 296 



Tiffany, Charles L., Favrile glass from 29 



Tiffany & Co., glass collection from 29 



Tilden, Professor, on liquefaction of air 137 



Titanium, reduction of 504 



Toll, Baron, Arctic exploration by 286 



Tombs, ancient Egyptian 594 



Tone color of vowels, Helmholtz on 107 



Tone perceptions as basis of music 108 



Toner, Joseph M., memorial of 637 



Toner collection in Library of Congress 642 



Toner gold medal at Jefferson College 612 



Toner lecture fund 641 



Tones, combination, Helmholtz on , 107 



Toriello, Enrique, courtesies from 51 



Torpedo boat made of aluminum 513 



Torpedo fish, origin of power in 331 



Tournefort, binomial nomenclature by 460 



Tower of Babel, model of 629 



Transmississippi Exposition, act authorizing xlviii 



Transit, meridian, early use of 85 



Treat, Mrs., on harvester ants 417 



Treasury Department, exchanges of , 49 



Trephining, primitive, article on , 42 



Tressider, Captain, plate-cooling, process of 511 



Trinchera, McGee's exploration of the 33 



True, F. W., history of National Museum by 13 



Tuberculosis, vaccination for 491 



Tubingen University, publications from 74 



Tuckerman, Edward, index of mineral springs by 9 



Turbines at Niagara Falls 226 



Turin Museum, exchanges with 30 



Turkey, exchanges with 52, 53, 54 



Tusayan Katcinas, Fewkes on 42 



Tyndall, quoted 382 



Types of mankind, exhibit of 614 



Typhoid and the colon bacillus, destruction of 76 



Typhoid germs, cultivation of 488 



Typonyms, Gill on 474 



U. 



Universe, duration of the 89 



theories of extent of 84 



Unwin, Professor, cited 231 



Ure's experiments in animal electricity 329 



Uruguay, exchanges with 52, 53, 54 



Utrecht University, publications from 74 



