xi 
PaGE | 
Costa Rica,sounds onbeach of 76. 
Cretaceous period, temperate 
Glugaieenc’ 2.5... 94-95 
teliosts, activity of...... 54 
Crocidolite of South Africa .. 104 
Crystals of calcite......... 19, 20 
diamond..... ZU p72 LOS; 107 
quartz resembling dia- 
AEFENIVEESHN SG At 2 as eal ares 72 | 
NORE Dear ae Sate Lain wes 25 
Cuba, W. I., cultivation of 
Sutar-canets. Js ooo. 15-16 
Cultivation of sorghum...... 5-6 
pf sucar-beet....3 25.058 -6 
of sugar-cane in Cuba. . 15-16 
(yclones in. the: West 22... 3-5 
Dakota, minerals from...... 17 | 
Darkening of atmosphere by 
SIRES Cos wn a ates ak 60-61 
Deceased members. .2, 33, 37, 56, 
, 80 
Delaware Valley, gravels ....7—12' 
Descloizite 
Destruction of Adirondack 
forests 35-37 
Devonian placoderms, armor. 
Deweylite 
Diamond, crystals of. .21, 72, 105, | 
107 
he) @, Sy akeyet a) Ries aha mami n 
De es Aue Ce A 
ot eine MIAO) obese a whe, a) 0S 
Dimorphous foliage of Sphe- 
BOPP. oss css, 46 | 
Discovery of stone implements 
AbvEGeNntON = ..s:< si. t2e I, 7-12 
in prehistoric mounds of 
TR Aa Pesaran 
Dolomyte of New York Island 
48-49 
Drilling of rocks by the an- | 
Bienes (32 tthe Le tee 105 
Durability of marble........ 100 
Dust columns at Sombrero 
Wsland- foes Peek ee ag 
Earth’s axis, change in posi- 
tion of...........89-90, 95 
Egypt, topography of ...... 78-79 
Eigg, Hebrides, ‘‘ singing 
WEACIE at ee See 73 
Election of fellows 220.0... 80 
of members. .1,-18, 31, 32, 37, 
48, 55, 71-72, 80, 100, 106 | 
GPOMCERS. 3M ove .. 
PAGE 
Elevation of Champlain de- 
POSS Rae ta es oss st 95 
amet ales o0 chico a esekie os ss 105 
of North Carolina....... 38 
Enclosure of spinel in ruby .. 21 
Eocene limestone, near Green 
IRIN OR 0 id 258 Yass tos sows 13 
Erosion, glacial, in North 
ys aol ae Oe a 51-52 
Pskimo Period ; 5: disicnn-% > 10 
| Exhaustion of soil in America 
and) 'Gubays: oss. 3% - 16-17 
Kellows, election’ of. =... -. 2. 80 
Field-workin local mineralogy 48 
Fishes, ancient, armor of.... 54 
fossil, of Chemung group. 32 
fossil, near Green River. 
fossil, from Wyoming. .34, 38 
Flint implements at Amiens. 80 
Florissant, Col., fossil insects 13 
OSSUE PAU s)= 0 ss > ons - 77 
Fluid cavities in minerals 13,81,107 
| Fluorite, phosphorescence of. 77, 
100 
Foliage of Sphenophyllum, di- 
morphous 46 
Forest growths, succession of. 36 
petrified, in Colorado... 6-7 
Forests, destruction and pres- 
SEMA a0 oie a = 
smoke produced by fires 
Ren cre ritge a eae ela ech 60-61 
Fossil fishes, ancient armor of 54 
from Chemung of Penn- 
Sy IVAN ee cis 2 oye: 2 
NEAL GreenwsIveb ac se 13 
from Wyoming........ 34, 38 
Fossil insects at Florissant .. 13 
Fossil palm at Florissant.... 77 
near green River... 2): 13 
Fossil plants at Golden...... 77 
Fossils of Loess formation... 14 
Fourth Monobromphenole... 32 
Galenitemacaronee sks hance Dag 
7 2 st A ae aps eo te I, 18 
Gasteropods, from streets of 
EPRRIOT EF ae 5 oo ssc ah 20 
Gems from Ceylon ....... U7, 1O7 
Geological climate, alterna- 
LO) ea 2 94-96 
in high jatitudes....... 84-97 
