540 GENERA 
Iddings, J. P., voleanic rocks of Tewan 
Mts., N. Mexico, i, 248, 441; spheru- 
lites from Wyoming, ii, 39; electrie 
conductivity of rock magmas, iv, 
242; origin of igneous rocks, iv, 
257 ; eruptive rocks of Yellowstone 
Nat. Park, iv, 429. 
Tllinois geol. survey, i, 159. 
Incandescent lamps, age-coating in, 
Nichols, iv, 277. 
India, British, fauna, Blanford, 111, 
338 ; vegetable resources of, viii, 
511 
India rubber, solution of, Barus, 1i, 
. 809. 
Indian Territory, geology, Hill, ii, 
111. 
Induction balance, new form, Wien, 
vi, 150. 
coils, interrupter for large, Wads- 
worth, viii, 497. 
Infusorial earths of the Pacific coast, 
Edwards, ii, 369. 
Ingersoll, C. A., hemimorphic wulf- 
enite crystals, viii, 193. 
Inheritance of acquired characters, 
Elliot, iii, 338. 
Insecta, Hyatt and Arms, i, 206. 
Interference of light, influence of 
brightness upon, Elbert, ii, 342; of 
Electric waves, see under Electric. 
Iowa Academy of Sciences, 1, 356. 
bulletin, State university labora- 
tories, v, 168. 
bulletin of Natural History of the 
university, 1890, i, 72. 
geol. survey, see GEOL. RuPORTS 
and SURVEYS. 
Irelan, W., State mineralogist, report 
for California, 1890, i, 440. 
Iron, chemical analysis, Blair, ii, 428. 
Iron ore, Clinton, Smyth, iii, 487. 
ores of Michigan, Van Hise, iii, 
116. 
Irrigation Engineering, manual, Wil- 
son, v. 442 
Isostasy, Gulf of Mexico as measure 
of, McGee, iv, 177; Dutton, vi, 
208. 
Isothermals, isopiestics and isomet- 
rics relative to viscosity, Barus, v, 
87. 
Italian Botanical Society, iii, 437. 
J 
Jannasch, P., water in topaz, vii, 386. 
Japan, the great earthquake, Milne 
and Burton, iv, 80. 
Johnson, L. C., phosphate fields of 
L INDEX. [26 
Johnson, W.J., Analytical Geometry, 
vi, 406. - 
Johnston, W. R., 
halides, vi, 25. 
Johnston-Lavis, H. J., ejected blocks. 
of Monte Somma, vii, 321. 
J ony G. W., Logarithmic tables, v, 
62. 
ay composite dikes of Arran, 1, 
70. 
Jupiter’s orbit, plane of, etc., Newton, 
ix, 420. 
ammonium-lead 
K 
Kansas Coal Measures, foot prints, 
March, viii, 81; stratigraphy, Keyes, 
1, 289 ; Haworth, 1, 452. 
Kathode rays, absorption, Lenard, 
1, 503. 
Kayser, E., Lehrbuch der geologischen 
Formationskunde, vi, 75 
Keller, H. F., Michigan minerals, ii, 
499; Experiments for Students in 
General Chemistry, iii, 153. 
Kelvin, Lord, thermal conductivity 
| of rocks, 1, 419. 
Kemp, J. F., peridotite dikes near 
Ithaca, N. Y., ii, 410. 
great shear-zone in the Adiron- 
dacks, iv, 109; a basic dike near 
Hamburg, N. J., v, 298; ore de- 
posits of the U. S., vi, 481;  leu- 
cite, Sussex Co., N. J., vii, 389; 
age of white limestones, Orange 
Co., N. Y., vii, 401; petrographic 
oes at DeWitt, N. Y., ix, 
06. | 
Kennedy, C., Astronomy, ix, 484. 
Kentucky, geological survey, see 
GEOL. Reports and SURVEYS. 
Keyes, C. R., perisomic plates of the 
Crinoids, i, 247 ; redrock sandstone 
of Marion County, Iowa, i, 273; 
faunaat the base of Burlington lime- 
stone in Missouri, iv, 447; Paleon- 
tology of Illinois, ix, 475; strati- 
graphy of the Kansas coal measures, 
roe On 
Kidston, R., Paleozoic species of 
Lindley and Hutton’s Fossil Flora, 
ili, 244. 
Kidwell, E., rock cutter and trim- 
mer, ix, 417. 
Kilauea, Hawaii, April, 1892, Bishop, 
iv, 307, Aug., 1892, Dodge, v, 241, 
Walls 1G: 
gases in Libbey, vii, 371. 
recent eruption, Baker, i, 386, 
443, ii, 77; Brigham, i, 507, 516; 
Florida, v, 497. 
Thurston, viii, 338. 
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