478 



INDEX. 



Siren and organ pipe, combination 



tones of, Barus, 88. 

 Smithsonian Institution, History, 



Goode, 158 ; report, Langley, 239. 

 Spectroscope, new form, Miclielson, 



215. 

 Spectroscopic Tables, Engelmann, 72. 

 Spectrum, infra-red, Eubens and 



Aschkinass, 391. 



absorption by rock salt and 



sylvine, Eubens and Trowbridge. 



33. 



Physical Chemistry, 



Speyers, C. L. 



390. 

 Stevens, J. S., 



lum, 14. 

 Stine, W. M., 



new form of pendu- 



simple compensated 

 shunt box, 124. 



Stone, G. H., granitic breccias of the 

 Cripple Creek region, 21. 



Stone, W. A., Physics, 222. 



Stratton, S. W., new harmonic analy- 

 zer, 1 ; Experiments in Physics, 

 389. 



Suess, E., La face de la terre, 152. 



Sun's Place in Nature, Lockyer, 300. 



Sylvester medal, 240. 



Thompson, S. P., Light, visible and 

 invisible, 71. 



Thorp, F. H., Inorganic Chemical 

 Preparations, 222. 



Transvaal, auriferous conglomerate 

 of, Becker, 193 ; geological survey, 

 Hatch, 393. 



Trowbridge, A., absorption of infra- 

 red rays in rock salt and sylvine, 

 33. 



Trowbridge, J., phosphorescence pro- 

 duced by electrification, 55 ; elec- 

 tromotive force, 57 ; source of X- 

 rays, 129. 



Turner, H. W., rocks and minerals 

 from California, 421. 



Tyrrell, Cretaceous of Athabasca 

 river, 469. 



u 



United States Coast Survey, 320. 



Geol. Survey, recent publica- 

 tions, 303. 



Van Hise, C. E., earth movement, 



230. 

 Van't Hoff, Arrangement of Atoms in 



space, 388. 

 Vibration time of high notes, 302. 

 Volcanoes of North America, Eussell, 



74. 



w 



Wadsworth, M. E., zirkelite, 153. 

 Walker, T. L., etching figures on tri- 



clinic minerals, 176. 

 Ward, H. A., Australian meteorites, 



135. 

 Washington, H. S., Jerome, Kansas, 



meteorite, 447. 

 Weisbach, Synopsis Mineralogica, 78. 

 White, T. G. , petrography of the 



Boston Basin, 470. 

 Wieland, G. E., the protostegan 



plastron, 15. 

 Wind pressure measured, Nipher, 468. 



X 



X-rays, impulse theory, Thomson, 

 301. 



literature, bibliography, Phillips, 

 71. 



source of, Trowbridge and Bur- 

 bank, 129. 



and mineral phosphorescence, 

 Burbank, 53. 



See also Rontgen Rays. 



Zoology, international congress, 1898, 

 238. 



text-book, Parker and Haswell, 

 319. 



EEEATA TO THE MAECH NUMBEE. 



p. 191, line 17 from bottom, after mineral, add with zircon. 

 p. 192, line 6 from top, for magnetic read magmatic. 



