INDEX. 
Hydrogen peroxides, color, etc., of, 
Spring, 343. 
Mercuric sulphide, change of black 
to red, Spring, 342. 
Perchlorates, Kreider, 287. 
Selenic acid, reduction by hydro- | 
chloric acid, Gooch and Evans, | 
400. 
reduction by potassium  bro- 
mide in acid solution, Gooch | 
and Scoville, 402. 
Selenious acid determined by potas- 
sium permanganate, Gooch and 
Clemons, 51. 
Selenium, reduction of the acids} 
of, by hydriodic acid, Gooch and 
Reynolds, 254. 
Tin tetrachloride and tetrabromide, 
Lorenz, 500. 
Clarke, F. W., jade-like garnet from 
California, 76. 
Clemons, C. F., determination of 
selenious acid by potassium per- 
manganate, dl. 
Color photography, Wiener, 417. 
Conductivity of rocks for heat, 
Kelvin and Murray, 419; Peirce 
and Willson, 485. 
Connecticut, wooded area, map, 481. 
Corsica, Bonaparte, 509. 
Crookes, W., spectrum of helium, 
302. 
Cross, W., Laccolitic Mt. groups of 
Colorado, Utah and Arizona, 74. 
ee eePhy, N. Story-Maskelyne, 
i 
Cutter, E., Key note of auditoriums, 
449, : 
D 
Dana, E. S., Minerals and how to 
study them, 274. 
Duane, W., velocity of electric 
waves, 104. 
E 
Eakle, 
gite, 244. 
a the, a magnetic shell, Bigelow, | 
Edwards, A. M., Tertiary clay on 
Long Island, N. Y., 270; ornithich- 
nites from the Newark sandstone, 
N. J., 346. 
Electric aureole, Lehmann, 418. 
A. S., so-called schneeber- 
511 
mere refractor of liquids, Drude, 
| 
| 
} 
| 
= 
waves, double refraction, Lebedew, 
in ice, double refraction, Bier- 
nacki, 418. 
velocity, 
Duane, 104. 
Electrical resonance, Bjerknes, 71. 
Electro-magnetic theory, Pupin, 326. 
Trowbridge and 
| Electrolysis of a liquid, indirect, 
Andreoli, 344, 
| Evans, P. S., Jr., reduction of selenic 
acid by hydrochloric acid, 400. 
F 
Fairbanks, C., estimation of halogens 
in mixed silver salts, 27. 
Fairchild, H. L., glacial lake in the 
Genesee valley, 345. 
Fletcher, L., Study of Rocks, 426. 
Foote, W. M., leadhillite pseudo- 
morphs in Missouri, 99; northup- 
ite, 480. 
G 
Gage, A. P., Principles of Physics, 
Geologic map of New York State, 
505; United States, 504. 
Geological Society of America, Spring- 
field meeting, 348. 
Géologie comparée, Meunier, 348. 
Geology, doctorate theses, 73. 
GEOLOGICAL REPORTS AND SURVEY— 
Canada, 347. 
Georgia, 350. 
Michigan, 71. 
Minnesota, 72. 
Missouri, 347. 
United States, 423. 
GEOLOGY— 
Aegina and Methana, petrographical 
sketch, Washington, 74. 
Baptanodor beds, reptilia, Marsh, 
405. 
Coal measures of Kansas, strati- 
eraphy, Keyes, 239; Haworth, 
452. 
Comanche series in Kansas, Okla- 
homa and New Mexico, Hill, 208. 
Dinosaurs, classification, Marsh, 
483. 
restoration of some European, 
Marsh, 407. 
tracks of, in New Jersey, Wood- 
worth, 481, 
