d16 IND 
Smith, W. B., erystal beds of Topaz Butte, 
134. ; 
Soil, nitrifying organisms in, 420. 
Spectral lines, distinction between solar and 
terrestrial, 70. 
Spectroscope. new universal chemical, 67. 
Spectrum, solar, relative wave-length in lines 
of, Rowland, 182. 
Steel, behavior of under magnetic forces, 422 ; 
viscosity aud temper of, Barus and Strou- | 
hal, 20, 308; effect of silicon in properties | 
of, 509. 
Stevenson, J. J., faults in southwest Virginia, 
262. 
Stone, G. H., terminal moraines in Maine, 
EX. 
| Voleanic action, Dana, 102 
Volcanic glass changed to pumice, 76. 
VOLCANO, Kilauea after eruption, 1886, Emer- 
son, Van Slyke and Dodge, 87; Dana, 
102, 239, 433. 
Kruption of Mauna Loa, 310. 
ruption of Niua-fu, 311. 
Vesuvius, relations of to Kilauea, Dana, 102. 
WwW 
Wachsmuth’s Palzeocrinoidea, review of, 154. 
Walcott, C: D., Taconic System, 153; Cam- 
brian Fauvas of N. America, 158. 
378. | Washington, H.S., contributions to mineral- 
Storer, F. H., Agriculture, 432, 509.- 
Strouhal, V., viscosity and temper of steel, 20. 
Sun, heat of, 423.: 
Swamps, fluviatile, New Eugland, Shaler, 210. 
T 
Taschenberg, O., Bibliotheca Zoologica, II, 
245. 
Temper and viscosity of steel, Barus and 
Strouhal, 20. 
Todd, 1). P., observations of eclipse, 1887, in | 
connection with electric telegraph, 226. | 
Topaz Butte, crystal beds of, Smzth, 134. | 
Trowbridge, J., physical abstracts, 70, 151, 
231, 307, 422. 
Tyrrell, J. B., naturally reduced iron, 78. 
U 
Ulrich, G. H. F., metallic iron. New Zealand, 
244, 
V 
Van Hise, ©. R.. enlargements of hornblendes 
and augites in rocks, 385. 
Van Slyke, L. L., Kilauea after eruption of 
ogy, 501. 
Water battery, Rowland, 147. 
Water, freezing of aerated, 306. 
Whale, fcssil in Quebec, Kalm, 242. 
Wheat-stone bridge, generalization of, 238. 
White, C. A., age of coal in Rio Grande 
region, 18; relation of contemporaneous 
fossil faunas and floras, 364; review of 
Paleeocrincidea of Waclismuth and Spring- 
er, 154, 
Whitfield, J. E., analyses of meteoric irons, 
500. 
Willams, A., Jr., Mineral Resources of U. 
States, 317. 
Williams, G. H., Modern Petrography, 79; 
norites near Peekskill, N. Y., 135, 191; 
orthoclase in norite, 243. 
| Wings of birds, movements of, 422. 
Wright, G. F., Muir glacier, 1. 
Z 
ZOOLOG Y— 
Chrysalides, gilded, 321. 
Medysa, rhizostomatous, New England, 
Fewkes, 119. 
1886, 95. 
See further under GEOLOGY. 
