520 



GENERAL INDEX. 



[42 



Tasmania, igneous rocks. Twelve- 

 trees and Petterd, 6, 511 ; minerals, 



Petterd, 3. 352. 

 Taylor, F. B., scoured bowlders of 



the Mattawa Valley, 3, 208. 

 Telegraphy, wireless, Vallot and 



Lecarme, 10, 396. 

 Telephone, excursions of diaphragm, 



Barus, 3, 219. 

 Telescope objective, new type, 



Hastings, 7, 267 ; Harkness, 9, 287. 

 Temiscouata Lake, igneous rocks 



of, Gregory, 10, 14. 

 Temperatures elevens, mesure des, 



Chatelier et Boudouard, 9, 395. 

 Temperatures, experiments in low, 



Hempel, 7, 392 ; effect on seeds, 9, 



74. 



— measurement of high, Holborn and 

 Day, 8, 165, 303 ; 10, 171. 



— undergroixnd, Hallock, 4, 76 ; in 

 the Dakotas, Darton, 5, 161 ; in 

 Michigan, Lane, 9, 434. 



Tennessee, Camden chert of, Saf- 

 ford and Schuchert, 7, 429. 



— geology, Safford and Killebrew, 

 10, 399. 



— phosphates in, Safford, 2, 462. 



— University Record, 7, 170 ; 9, 462. 

 Terrestrial Magnetism, 1, 141. 

 Texas, geology of, Stanton and 



Vaughan, I, 21 ; Hill and Vaughan, 

 7, 70. 315. 



Thermal expansion, residual viscos- 

 ity, Day, 2, 342. 



Thermodynamic relations of . hy- 

 drated glass, Barus, 7, 1 ; 9, 161. 



— relations for steam, Starkweather, 

 7, 13, 129. 



Thermodynamics, Duhem, 7, 68. 



— of swelling of starch, Rodewall, 5, 

 297. 



Thermoelectricity in certain metals, 



Holborn and Day, 8, 303. 

 Thermometer, gas, experiments 



with, Cady, 2, 341 ; Holborn and 



Day, 8, 165 ; 10, 171. 

 Thermostat, electrical, Duane and 



Lory, 9, 179. 

 Thompson, E. P., Rontgen Rays, 2, 



392. 

 Thompson, S. P., Light, Visible 



and Invisible, 5, 71. 

 Thorp, F. H., Inorganic Chemical 



Preparations, 3, 357 ; 5, 222. 



— Industrial chemistry, 7, 157. 

 Thorpe, T. E., Humphrey Davy, 



Poet and Philosopher, 2, 449. 

 Tide gauge observations, 4, 82. 

 Tierreich, Schulze, 1, 491 ; Hartert, 



4, 250 ; Schulze, 8, 397 ; 10, 89. 



Tilden, W. A., Progress of Scientific 

 Chemistry, 8, 385. 



Tin deposits, Temescal, So. Califor- 

 nia, 4, 39. 



Todd, D. P., Stars and Telescopes, 8, 

 87. 



Todd, J. ;E., revision of the mo- 

 raines of Minnesota, 6, 469 ; mo- 

 raines of So. Dakota, 10, 249. 



Todd, M. L., Total Eclipses of the 

 Sun, 9, 393. 



Torsion, producing rotatory polariza- 

 tion, Ewell, 8, 89. 



Transformer, Principles of the, Be- 

 dell, 2, 453. 



Transvaal, auriferous conglomerate 

 of, Becker, 5, 193 ; geological sur- 

 vey, Hatch, 5, 393. 



— norites, gabbros, and pyroxenites 

 of, Leo Henderson, 7, 317. 



Treadwell, A., Storage Battery, 6, 

 101. 



Trinidad pitch, Peckham and Linton, 

 1, 193. 



Trowbridge, A., absorption of in- 

 fra-red rays in rock salt and sylvine, 

 5,33. 



— investigation of the coherer, 8, 199. 



Trowbridge, J., triangulation by ca- 

 thode photography, I, 245; carbon 

 and oxygen in the sun, 1, 329. 



— spectra of argon, 3, 15; multiple 

 spectra of gases, 3, 117; tempera- 

 ture and ohmic resistance of gases, 

 3, 327; does a vacuum conduct elec- 

 tricity ? 3, 343; electrical conduc- 

 tivity of the ether, 3, 387; conduc- 

 tivity of electrolytes, 3, 391. 



— electrical discharges in air, 4, 190; 

 oscillatory discharge of a large ac- 

 cumulator, 4, 194. 



— phosphorescence produced by elec- 

 trification, 5, 55; electromotive 

 force, 5, 57; source of X-rays, 5, 

 129. 



— ■ explosive effect of electrical dis- 

 charges, 8, 239. 



— production of X-rays by battery 

 current, 9, 439. 



— spectra of hydrogen and of aque- 

 ous vapor, 1.0, 222. 



True, R. H., toxic action of acids on 

 Lupinus albus, 9, 183. 



Turner, H. W., rocks and minerals 

 from California, 5, 421; rock-form- 

 ing biotite& and amphiboles, 7, 

 294 ; roscoelite, 7, 455. 



Turpin, G. S., Inorganic Chemistry, 

 i, 317. 



Tutorial Chemistry, Bailey, 3, 357 ; 

 5, 390. 



