INDEX. 487 
Geological tips Pennsylvania, 225. Gilbert, G. K., wind-drift erosion, 151. 
as, 152, 224, 330. Gir we co! mposition of tragacanth, 463. 
Territories, (Hayden’ s), 59, 152, Girard, explosiveness of methyl nitrate, 
226, 482. 
Wheeler’s, 226, 328. es —— - glass, 14 
Victoria, ; Goda and pretzel of 
Geological Survey, 40th Parallel, 62. Pon rub dion 
Wisconsin, 39%. 
GEOLOGY— 
Posen hydrate — chlorine, “461. 
Gould, B 
sae ee i Silurian age of, Bradley, Gramme, Eoalionn electric machines, 216. 
9, 310 Gray, A. pomiea | notices, 65, 153, 323, 
the eh pee ng at St. sey? 61. 
Basalt, structure of, Mallett, 206. Jeffries Wyman, age 
Blue Ridge in Virginia Fontaine, 14, 93. Do varieties wear iad 
Calamodon, 228. Bentham on progress ps ‘present 
Carboniferous, diatoms in, 222. state of botany, , 346 
Coal beds, parallelism of, 221. on ophylacize, n 
Coal, from Middle sae , 146 Gripon, ., Symp es ee 
M. 
in Patagonia, 3 Griseback Plante Lorenziane, notice |, 
rae ritish rica, age of, 236, 
Orie A. dt, kenge ore 76. 
Cold of pone 2 ge Be 314, 398. Cotton worm, 
Costa Rica, Gabb, 1 
cece flor: edi 227. H 
in British ‘Aeeidibas: 236, Ste 318.||Hall, J., on State Museum, egrs: 151. 
| ‘Harrin gton, B. J., dawsoni ite, 6 
Diabase, 
Erosion, wind-drift, Gilbert, 151. 
Glacial period 
| 4 
; climate of, 313, 39 | diabantite, a chlorite in ce 454. 
submergence during, 315, 316 Hayden, F. V., geologi 0 
a es near L. Winnipeg, 3 ce 59, 152, 226, 482. 
ke 
312. 2 
arge “ Lake Winnipeg into | ay ape acids of petroleum, 138. 
, 
Mississipph 3 1: ‘Heer sc shel Sap 401. 
jocene flora of, 154. ‘Height rot d m-points, 3 
Gulf of Mexico in Miocene : gp of I Europe, 133 
Hematite ing Prim zor one hy geological re- 
Insects, etc., from Soran eo Saxony, te noticed, 152, 
Rea. procs of nace and 
Lake -basins, a neient, Marsh, 49. cedri 
Lignitic of Vancouver I., age of, 318. eosin, new coloring matter, 393. 
Mammeebe no test of age, ’310. Hooker ge oo Synopsis Filicum, 
w order of Eocene, Marsh,|| noticed, 4 
Hooker, J. D. Flora of India, noticed, 
: new Tertiary, Marsh, 239. 
- Seyler, urematin from hematin, 
7 i=] ’ fs 
Mastodon, Koch on contemporaneity, 141. 
of Man and, Dana, 335, 398. Hull, E., porphyry of Lambay, 58 
new, on voleanic phenome "7 
innesota, valley of, 313 Hunt, T. S., deposition of sediment, 61. 
Miocene, Na of ies . bad ice of essays of, Dana, 102. 
n of, 4 ‘Huxley, on Sica. ie eas noticed, 404. 
Spiscsoptors: and nomalpaneni 318.||Hydrocyanic — , detection of, a Un. 
Porphyry of Lambay, 58. Hyd xide, atm 
gm ae Canadian of Wisconsin, Hydroxylamin e, 465. Be cai 
ai forint of, 394. 
Primordial foal Ford, 204. 
Virginia, 361, 416. I 
Pinca, 469. Irving, R., Bicnigies and Canadian rocks 
Sediment, , deposition of, 61. of Wisconsin. 
ertiary tish America, 236, 311. 
Trap Sask "Timoes 185, 454. 
Urals, a ee rocks of, 470. James, U. P., jetecs of fossils, no- 
Zircon-syenyte of the Canaries, 152. ticed, 471. 
