Xvi 
PAGE 
Specializations of sex in insects 103 
Sphalerite 23,40 
eee ec ewer ee ee wee 
Sphenophyllum, dimorphous 
foliage. issds 2 were s = 46 
Spherostilisite si. .3 5 one de 18 
SIDER as shld stele eee ie ase 21 
Spitzbergen, climate of..... 85-87 
St. Acheul, Paleolithic arrow- 
PICA CSisx. 10% is aitete Fe . ..81-82 
Staten Island, N. Y., carved 
head found im «2 4.)2...; 81 
leaf-bearing sandstones. 30-31 
WNTHEFANS 55 io5) ois ae oi ea 3 50 
Steamboat, first, on Lake Su- 
PeTier shoe. see aes 13 
Sterility of ants and neuters . 103 
Stoneham, Me., herderite... 37 
Stone implements at Trenton 1, 
7-12 
Striz, glacial, on Shawangunk 
FANGS ich ishichhe sass cis 27-28 
Succession of animal life.... 20 
of forest growths........ 36 
Sugar-beet, cultivation of ... 5-6 
cane crop, soil exhaustion 
Sieh 3 eee 15-16 | 
from. SOrghum), .¢ -srecss 5-6 
Sullivan County, N. Y., mo- 
rane, GEpOsits ects 25-26 
Survey at Lake Merris ..... 78-79 
Teliosts of the Cretaceous 
DEMOG.: tick ipichs aes ee 
Terraces on Shawangunk | 
VEO UTNE 2 & Sasys tel ao 27 
Tertiary climate in Arctic re- 
SOM au dane, Sera ehies pasos 94 
plants, found in Colorado 13, 
AeA 
plants, present range of. 96) 
Thames River, England,water 
OD co eis te ne So 42 
Theory of the origin of leaf- 
FORMS: & 2.2.2 «bie wer 38-44 
Tideways of Puget Sound, 
OTIBUT WH nist care bb wa se 104 
LAC, Aa oe Se oe 2; 13, 37 
Topography of Egypt ...... 78-79 
of North America...... 51-52 
CSO ce ae aa ie eet Aine 3-5 
Wourtiaiite sc 5 seas ds yes 34, 49 
PAGE 
Trance state, artistic uses of. 107 
reacuher, Report. <... 2.988 
Trees, planting and destruc- 
3 - 2-35-37 
‘Tromiee eerer ext ss. nae 
Trenton, N. J., stone imple- 
TIVETLUS AUS atvs s,s. 5 0.6 1, 7—12 
Triassic copper ores ....... 18-19 
Tyringham, Mass., sphero- 
stilbite and chabazite.. 18 
Uniformity of geological cli- 
mate ....84-97 
Utah, luminous limestone ... 100 
Vaneadite «|... %. ina eee 
Venation of leaf, relation to 
marginal forms 
Vermont marbles, .2.2).. 
Virginia, minerals from...77, 100 
Volcanic ashes in Yellowstone 
Park 240s sccaeeeeee 
ashes, microscopic exam- 
ination Of.» ses. 14, 63-64 
dust of Krakatoa, diffu- 
sion Of ff ae 60-61, 64-65 
Warm Arctic climate, ancient 
84-86 
Wahsatch Mountains, Utah, 
eOpper Ores ... 4. eeer 19 
Water, carbonic acid in..... 42 
of river Thames, Eng- 
Landiereie sees: Ss eks 42 
Waterspoutsin CaribbeanSea 3 
Wravellite..scuriaeaatent sv 18 
Wire, corrosion Of......... 65-66 
Wood-sections, photomicro- 
Sriplics, fh 5 fetes bere aie 107 
Wood, silicified, in Colorado. 6-7, 
I37 7F 
Wyoming, fossil fishes from. . 343 
3 
minerals from ..7, 19-20, IOI 
Yellowstone Park, Col., geol- 
ogy, botany, etc...... 34 
geysers and rhyolyte.... 7 
LGOMtSS Awe teers vias os sree 1, 78 
|: 2tRCOME server sire ees fo x oss 17 107, 
