inbex; et? 
GrOLOGY— 
Devonian plants, Dawson, 2 
Dictyophyton, belie sao 53 
Diluvium re 
Din noceras, aohinativas of, Marsh, 81. 
ryte . J. and Conn., 230, 
, 132. 
al, 86, 
, near B 80. 
n Pennsylvania, 486. 
1 t, Mt. vie my 
n New J ogres 
ecahoan hictone of, pry 264. 
subsidence produced by, Mc Gee, 
Glaciers, illustrations of, 7 
Glacier se ratches, Goshen, Conn., 322. 
Grezzoni ae Ital 
Gu re exico, Tertiary of, Hilgard, 
Ice sheet, subsidence produced by, 
Me Gee, 368. 
Irish Elk, deposits containing, 408. 
Iron ores of  Makiistis district, 320, 
aie 403. 
of Rhode Island, 152. 
mpeg birds and their allies, Marsh, 
Dale Carboniferous in, Broadhead, 
497 
GEO 
Tortie riper basin of Florissant, 
Colora 
Trap of sen Ni America, 230. 
Trenton gr rs 401 
Trilobites, bad mage 79. 
em Sat thes aay 
Uphanteeni a Dae 
hai i old. filled genls ‘duit, 486, 
tebrata, Permian of Texas . Cope, 
Westchester Co. limestone, Dana, 103, 
Glaciers, ete., see GEOLOGY. 
Gray, A., botanical zis 235, 491. 
H 
Heeckel, E., Medusen, noticed, te 
Hall, ie Double are Observation 4, 
Hansen, "R. C., alcoholic IMT, 
aac O., New England Isopoda, 411. 
Harkness, W., comet b, 1881, 137. 
solar parallax, 3 
| Hawaii, voleanic eruption in, 226, 322. 
&. W., doleryte of Eastern N. 
Am 
Reinke of the Connecticut River Val- | He ight ‘of —_ service stations, 18. 
Lacco 
— Hrie, ae: ‘catiet of, 151, 
Léeeaen Tertiary, of Florissant, 
Laramie 7 Broup, New Mexico, Steven- 
“Deedes of be seencir ona Co., Dana, 
103; 213 
Maine, pi Hee te ingcede in, 434. 
ames of, Stone, 4 
Mammals, Eocene of New Mexico, 
Minas Geraes, Brazil, 22 
Mt. Kta 
geology of, Cook, 77. 
and east lines, 149. 
ake Champlain, 321. 
ces and ancient coast lines, 149. 
Haw — 
Hesperidi 
es mineral localities in 
North Caroli a, 21, 
Nort h Carolin emeralds, 48 
Hilgard, ee W., Tertiary of the Gul of 
exico. 
soil analyses, 183. 
Cotton Production of Louisiana, 245. 
Hitchcock, ee H., yoleanie eruption in 
Hawaii 
Holden, E. 8. ight hes Seat lat used 
as night-glasses, 
t 6, 1881, seer 
Hovey, ; danger from coal-dust in 
mining, 18. 
Huntington, O. W., atomic weight of 
cadmium, 148, 
m of arsenic, 214. 
Tee, heating of, 148, 220. 
J 
Jenney, W. P., Geology of the Black 
Hills, 399. 
a de hypothesis as to cause of varia- 
oxygen in the air, 429, 
