INDEX. 
GEOLOGICAL REPORTS OR SURVEYS— 
New Jersey, 489. 
EL dartiegs a (ard s), 159, 415. 
Verm 
Archean fon of the Wahsatch 
Mountains 
Atmosphere penlbetial relations of, 
un. 
Atops trilineatus, note on, Ford, 152. 
Brazil, geology of, Derby, 236, 324. 
tee rnia, old river-beds of, Le Conte, 
176 
Catsk il Mts., structure of Ah i 429, 
Cave bear of California, 
Colorado, ieee in Trinbeteo-t urassic | 
of, Hills 
Conodonts, inde. 327, 4 
Crinoids, new pe Heb ea 328. 
Dinosaurs, American Jurassic, Marsh, 
m in, Mars 
iain edible, from Japan, au. 
Eozoon from Bra 
Firth of Forth, valtuuiie ae of, Gei- 
kie, 414, 
Gi inkgo, recent and ie 328. 
Glaciers, oe ts 426. 
Great ke, andlons outlet of, 
Gilbert ‘SAI, 
ae Mo ountains, age of, Dana, 191. 
nry Mountains, 
Takes Bonneville, Sia of, Gilbert, 341. 
Lingula in the grr Whitheld 472. 
ical 
eg ogy of, Aughey, 4 
—— Boars ps8 ‘fi: Whit- 
fold, 3 
oilsands of a ae 415. 
epee e faun 
252. 
Pennsylvania arentoe rocks of 
rm, Hal pole 
ea 
Petroleum. sili and Field of, 168 
Pre-Cambrian rocks in Europe and 
8 
son Rive si 
Sauranodon, Marsh, 169, 491. 
Taconic rocks, age of, Hitchcock, 236. fom Baer 2 a 
<7 list of papers on , Dana, 
western limit of, Ford, 225. 
dyea 
es pont 1879, 4 
Gould, 
Hall, C. "BS Silurian 
Heliotrope 
a of, Cope, 155, | Hesse, aeobiblichaiit of C 
Hidden, 
Hill, W. N., 
499 
GEOL 
Wappinger Valley limestone, Dwight, 
sin, rocks of, 
W 488. 
Giesecke’s travels in Greenla nd, 416, 
Gilbert, G. K., the outlet of Lake Bonne- 
ir, W. A, ‘hgectpsoins e at San Sal- 
., Sine- formals ng oy diurnal 
variation of one 
southern comet of Te, a 396. 
of, 487. 
Gravity, measurements 
y of the Catskill Mts., 429. 
H 
Habirshaw, F., Catalogue of Diatomacee, 
Heeckel. E., Meduse, 2 
45. 
Hall, A. , companion “a Sirius, 457. 
e of the crystal- 
line rocks of Pennsylvania, 413. 
Hall, C. W., thomsonite from Minnesota, 
ape z = feoh a eg the magnet 
rrents, 2 
Hall, y "Paleontology of Now Tork, 489. 
Hal B. D., Ameri Cha: 75. 
Hannay, the artificial formation of the 
mee ai 
ility tf gases in solids, 486. 
ees rns, W., color ba of achro- 
lesco copes, 1 
Hayle, F. es Sarvey of Territories, 
He ites \ schidonl equivalent of, 319. 
use of for telegraphing, 408. 
alifornia, 229. 
. £., meteorite from a Oebeld 
Co., ‘Alabama, 370. 
Hilgard. d, J. E., magnetic declination in | 
the United States, 266, 113, f 
electro - dynamometer for 
tse currents, 1 
Hills, R. C., fossils from near San Miguel, 
Colorado, 490. 
Beever. G. J., on tg Ipaong. 327, 418. 
the 
Hitchcock, C. Ha nd £., age of Taconic 
rocks and geo cology of Vermont, 236. 
n free path of a 
bina 222. 
S., components of binary 
gored 467. 
