168 
INDEX. 
Pago 
Spencer, A. C, and Schrader, F.C., on Top- 
per River district 78 
on gold near Alaganik 80 
Springs, hot, occurrence of 60 
mineral, occurrence of 60 
Spruce Creek, gold claims in basin of 41 
Spurr, .1 E., on cinnabar deposits 9 
on gold production of Preacher Creek. . 131 
on Rampart scries 130 
Standard claim, ore body at 84 
Stannite, occurrence of 155 
St a id on. F. M.. analyses by 7:; 74,99 
Stantmi. T. W., report of, on fossils from 
llcrendecn Hay 103, 104 
Starry Manner claim. Helm Bay.WOrkon.. 44 
Stepovak Bay. description of 101 
fossils of Kit 
Stevenstown copper claims, work on 47 
St i I mite, occurrence of 114,115,117 
Stikine River, gold deposits on tributaries 
of 15 
hot spring on 60 
St on ■, R. W., on coal beds 20 
report by, on reconnaissance from Circle 
to Fort Hamlin 128 L31 
work of L28 
Stone, building, occurrence of 55 58 
Stowell, \V. II.. .v Co., analysis by 99 
Sullivan, E. ('., work of 154, L55 
Sumdum Hay, gold mines and prospeel - at . 40-41 
Sunny Day copper claims, ores al 48 
Sunset ditch, description of 143 
Sunrise gold-placer district, railway to.... 1" 
Surprise gold claims, work on 44 
Surveys in Alaska, progress of 2 3 
Sushi t na River, gold along tributaries of . . 7 
railway route along 15 16 
Sushil na River Valley, view in Hi 
Sutter i 'reek, tin on 156 
Sweetcake Creek, gold mining on 138 
Sweney Creek, prospecting on 34 
Switch Creek, gold placers on L26 
T. 
I a ( on ia copper claim, work on 47 
Taku Inlet, gold mines and prospect s south 
of 40-41 
Talkeet River, railway route to 15 
Talkeetna Mountains, coal in 90, 92 
description of 88 
Jurassic rocks in 89 
Tanana region, lower, map of 12.'5 
Tanana River, copper deposits at head of... 8 
Tanana River Valley, railway routes 
in 11 12,15, 16 
topography of 110 [i] 
view in 12 
Taral. railway route to 13-14 
Tarr, R. S., report by, on Yakutat Hay re- 
gion 61_64 
work of 2 
Tasnuna River, railway route to i:: it 
Tasnuna Valley, view in 14 
Tatshenshini Valley, view in 10 
Tazlina River, junction of, with Copper 
River, view showing 12 
Page. 
Teh-graph gold claims, work on 44 
Teller region, mining in R59 
Tenakee Inlet, hot springs at 00 
Tenderfoot Creek, gold mining on 124 
Tertiary rocks, Matanuska Valley 89, 9Q 
Thawing, methods of 120, 121 
Thermal Springs, occurrence of 09 
Thome Arm, gold deposits near 44 
Three Man Mining Company, operations of. S4 
Thiinim, 11. F. information furnished by.. 121 
Timber, Circle-Fort Hamlin region 129 
Cook I nlet 88 
Fairbanks region 112 
Matanuska Valley 88, KM) 
southeastern Alaska 3Q 
Tin, deposits of, studies of and work on 3, a 
Host River area 146 15(3 
York region 3, 14."> 157 
Tin City, gold near 151 
tin mining at 152 
transportation to 14. r ) 
Tin Creek, tin ore near 147 
Tokun Creek, sections on 73 
Tolovana River, name of HO 
Tom Creek, gold placers on II S 
Topaz occurrence of 14!) 
Topkok Ditch Company, operations of 14:1 
Tourmaline, occurrence of 1 !'.», 
150, 151, 152, 153, 154, 155 
Townsend, C. II., fossils collected by 103 
Trail Creek, sect ion on 7:i 
Transportation, Bearpaw River I2q 
Bering River coal held, plans for 76 77 
Bonnerfleld and Kant ishna regions 125 
Buck Creek 156 
Butte <'reek 124 
I a ribou Creek 124 
Ears Mountain 145 
Fairbanks region 111-112 
llcrendecn Hay 102 
Kmk Arm L5 
Kougarok River 139-140,14^ 
Koyukuk region 127 
Lost River 14.") 
Matanuska Valley 15,100 
Moose Creek, Kaiilislnia region 12.") 
railway routes and proposed routes for. 10 17 
Salcha region 12! 
Sushitna River Valley IS 
Tanana River 15,110 
Tenderfoot Creek 124 
Tin City 145 
York tin region L45 
Yukon River 109,110 
Set also Railway routes. 
Tsadaka Creek, coal on 90,95,96 97,98 
name of SK 
Tumagain Arm, railway route to head of.. 15 
Twel vemile Arm, copper deposits near 48 
Treadwell gold mines, operations at o,:i<) 
Treasure gold claims, operations on 41-42 
Trout Creek, coal beds on, sect ions of 70 71 
C. 
CI rich, K. <>., on fossils from Kodiak Island. so 
[Jnakwik Bay, nickel near 86 
