514 
Colton, R. P., Practical Zoology, 165. 
Comets in 1886, 428; in 1887, 429; origin of, 
Kirkwood, 60. 
Crosby, W. O., Geological Collections: Miner- 
alogy, 318. 
Cross, R. T., aquamarine from Colorado, 161. 
Curves, isopyenic, 148. 
D 
Dana, J. D., on voleanic action, 102; Manual 
of Mineralogy and Lithology, 243; Taconic 
rocks and stratigraphy, 270, 393; changes 
in Mt. Loa craters, Hawaii, 433. 
Day, D. T., Mineral-resources of U. 8., 317. 
Daydon-Jackson, Index to Plant-Names, 320. 
Diller, J. 8., quartzose lava in northern Cali- 
fornia, £45; geology of northern California, 
152. 
Dodge, F. 8., Kilauea after eruption of 1886, 
98. 
Draper, Henry, memorial, 429. 
Karth currents. 307. 
Earthquake, Charleston, 71; in Switzerland, 
312; of Andalusia, 1884, 313; magnetic 
effect, 423. 
Kelipse. 1887, in connection with electric tele- 
graph, Todd, 226. 
Hichler, A. W., Jahrbuch des K. K. botanis- 
chen Gartens, 82. 
Electricity from condensation of vapor, 71 ; 
transmission of, 307. 
Hlectrometers, aperiodic, 307. 
Electromotive force of voltaic are, 237. 
Electrostatic and electromagnetic units, 152. 
Hmerson, J. 8., Kilauea after eruption, 1886, 
87. 
F 
Fewkes, J. W., new Rhizostomatous Medusa, 
WG: , 
Fossil, see GEOLOGY. 
G 
Galvanometer, new form of, 70. 
Gattinger, A., Tennessee flora, 426. 
Geological Annual, Agincourt. 159. 
Geological Congress, ‘nternational, 157, 511. 
Geological map of United States, 77; of Berk- 
shire, 393. 
GEOLOGICAL REPORTS AND SuURVEYS—Ala- 
bama, 78; Canada, 316; Minnesota, 159; 
New Jersey, 79; Western Texas, 73. 
GEOLOGY— 
California, northern, 152. 
Coal, age of, White, 18. 
Cross-timhbers. Texas, geology of, Hill, 291. 
Drift, Irish Esker, Kinahan, 276. 
Kozoonal rock, Manhattan island, Gratacap, 
374, 
Faults of Southwest Virginia, Stevenson, 262. 
INDEX. 
GEOLOGY— 
Faunas and floras, fossil, White, 364. 
Fossil tree-trunk in hydromiea schist, 158. 
Ice period in Altai mountains, 165; of 
North America, 77. 
Invertebrates of N. A. Jurassic, 79. 
Mammals, American Jurassic, Marsh, 327. 
Mountain limestones, Penn., 158. 
Moraines, terminal, Maine, Stone, 378. 
Palzeocrinoidea, 154. 
Paradoxides, Acadian, Matthew, 388, 390. 
Taconic rocks and Stratigraphy, Dana, 270, 
393. 
Taconic system, Walcott, 153. 
Gilbert, G. K., special processes of research, 
452. 
Glacier, the Muir, Wright, 1. 
Glass, decomposition of, by carbonic acid, 68. 
Goebel, K., Classification and Morphology of 
Plants, 427. 
Goodale, G. L., living protoplasm subjected to 
action of liquids, 144. 
Gratacap, L. P., eozoonal rock of Manhattan 
island, 374. 
Gray. A., botanical notices, 80, 162, 244, 318, 
425; botanical necrology, 164. 
Greene, E. L., Pittonia, 426. 
H 
Harding, 8. L., bichromate of soda cell, 61. 
Heilprin, A., Distribution of Animals, 242. 
Henry, Joseph, scientific writings of, 325. 
Hidden, W. K., Mazapil meteoric iron, 221; 
contributions to mineralogy, 501. 
Hill, R. T., geology of the Cross-timbers in 
northern Texas, 291. 
Hitcheock, C. H. geo]. map of U. States, 77. 
Hooker, J., Primer of Botany, 83; Icones 
Plantarum, 163, 244,318; Bentham’s Hand- 
book of British Flora, 319. 
Howell, T., Plants of Oregon, ete., 319. 
Huntington, O. W., Coahuila meteorites, 115. 
I 
Iddings, J. P., Lithophysee and lamination of 
acid lavas, 36. 
Iron, behavior of, under magnetic forces, 422; 
naturally reduced, Tyrrell, 73; nickeliferous 
metallic, Ulrich, 244; influence of silicon 
on properties, 509. 
K 
Kinahan, G. H., Irish Esker drift, 276. 
Kirkwood, D., origin of comets, 60. 
Kokscharow, N. von, Mineralogie Russlands, 
424. 
Kunz, G. F., meteoric iron, Augusta Co., Via., 
58; Johnson Co., Arkansas, 494; Kentucky 
and Mexico, 228. 
