526 
INDEX. 
Page. 
Sewer  pipe,  manufacture  of,  in  Ohio  Valley, 
Pennsylvania 478 
Shale,  a ualysis  of 449, 461 
Sheep  Creek,  Alaska,  gold  mines  on 36 
Shepperd  shaft,  West  Virginia,  coal  in...  337-338 
Shingnek  Creek,  Alaska,  gold  placers  on. . .        45 
Shuck  River,  Alaska,  gold  deposits  on 37 
Silver  and  gold  deposits,  California 170-172 
Nevada 89-110 
papers  on 28-153 
publications  on,  during  1903,  titles  and 
descriptions  of 18-19 
in  preparation,  titles  of 19-20 
list  of 151-153 
Silver  Peak,  Nevada,  alum  deposit  near. .  501-502 
coal  deposits  near 289-292 
Silver  Peak  mining  district,    Nevada,  ore 
deposits  of 112-113 
Silver  Peak  quadrangle,  Nevada,  ore  de- 
posits of  111-117 
Silver  Tip  district,  Wyoming,  coal  in 358-359 
Slate,  analyses  of 419, 420, 422 
deposits  of,  in  California  and  Utah...  417-422 
Slates,  roofing,  in  Arkansas 414-416 
Smith,  E.  A.,  paper  by,  on  cement  resources 
of  Alabama 424-447 
Smith,  G.  O.,  paper  by,  on  quartz  veins  in 
in  Maine  and  Vermont 81-88 
paper  by,  title  and  description  of 21 
Smith,  W.  N.,  work  of 25, 217 
Smith,  W.  S.  T.,  and  Ulrich,  E.  O.,  cited  on 
Kentucky  fluorspar  deposits..  505,507 
Soda,  publications  on,  list  of 496 
South    Dakota,   metalliferous  deposits   in, 
work  on 24 
ore  deposits  in 123-140 
Spencer,  A.   C,  paper  by,   on   geology  of 
Juneau  gold  belt,  Alaska 28-42 
paper  by,  title  and  description  of 20 
professional  paper  in  preparation  by  . . .        20 
Spurr,  J.  E.,  cited  on  Alaskan  geology 48 
paper  by,  on  alum  deposit  near  Silver 
Peak,  Nevada 501-502 
on  coal  deposits  between  Silver  Peak 
and  Candelaria,  Nevada 289-292 
on  ore  deposits  of  Silver  Peak  quad- 
rangle, Nevada 111-117 
on  ore  deposits  of  Tonopah,  Nevada. 89-110 
titles  and  description  of 23-24 
work  of,  on  ore  deposits  of  Tonopah, 
Nevada 18, 19 
Squaw  Creek  area  of  ore  deposits,  South 
Dakota,  feature  of 135-136 
Stanton,  T.  W.,  aid  by 141 
fossils  determined  by 245 
Stevenson,  J.  J.,  citedon  Saltsburg  sandstone      296 
Stone,  papers  on 414-423 
publications  on,  list  of 423 
See  also  Building  stone  and  Slates. 
Stone,  R.  W.,  paper  by,  on  Elders  Ridge 
coal  field,  Pennsylvania 311-324 
paper  by,  on  oil  and  gasfieldsof  eastern 
Greene  County,  Pennsylvania.  396-412 
Stose,  G.  W.,  paper  by,  on  barite  in  southern 
Pennsylvania  and  limestone  in 
Berkeley  County,  W.  Va. 515-517 
Page. 
Stose,  G.  W.,  work  of 27 
Structure,  relation  of  oil  and  gas  pools  to  .  407-411 
Sulphur,  publications  on,  list  of 503 
Sulphur  mines  in  Nevada,  location,  geology 
and  production  of 497-500 
Summit  coal  mine,  Pennsylvania,  opera- 
tions at 305 
T. 
Taff,  J.  A.,  cited  on  coal  from  Arkansas 281 
cited  on  geology  of  Wichita  Mountains.      120 
Tennessee,  coal  in 259-275 
zinc  deposits  of 208-213 
Thermopolis  district,  Wyoming,  coal  in..  354-355 
Thirty- foot  sand,  Pennsylvania,  occurrence 
and  thickness  of 401 
Tiles,    manufacture    of,    in    Ohio    Valley, 
Pennsylvania 478 
Tin,  deposits  of,  in  Alaska 154-167 
Tonopah  mining  district,  Nevada,  geolog- 
ical history  of 91-94 
geologic  map  of 92 
location  and  history  of 89 
mineralization  in 97-100 
ore  deposits  of 89-110 
ore  shipped  from 90 
ores  of 103-110 
rocks  of 94-97 
topography  of 91 
veins  in 100-103 
map  showing  outcrops  of 101 
Treadwell  gold  mines,  Alaska,  description 
of 39-40 
Trenton  limestone,  analyses  of 432, 450, 458 
Alabama  cement  material  in 426-428 
Trenton  limestone,  Pennsylvania-New  Jer- 
sey, cement,  material  in 450 
Tungsten,  paper  on,  titles  of 168 
Turner,  H.  W.,  cited  on  geology  of  Silver 
Peak  quadrangle Ill 
Turner  coal,  occurrence  and  thickness  of . .      266 
Twin  Creek,  Alaska,  gold  placers  on 68-69 
U. 
Uinta  Mountains,  Utah,  iron  ores  of 221-228 
Ulrich,  E.  O.,  and  Smith,  W.  S.  T.,  cited 
on  fluorspar  deposits  of  Ken- 
tucky    505, 507 
Upper  Freeport  clay,  analyses  of,  Ohio  Val- 
ley       473 
occurrence  and  thickness  of 472-473 
Upper  Freeport  coal,  analyses  of 298 
mines  working 298-300 
occurrence  and  thickness  of 297-300 
Upper  Hignite  coal,  occurrence  and  thick- 
ness of 262 
Upper  Kittanning  coal,  analysis  of 307 
mines  working 308 
occurrence  and  thickness  of 306-308 
Utah,  gypsum  deposits  in 483-487 
iron  ores  in 221-237 
metalliferous  deposits  in,  work  on 24 
salt  industry  in 488-494 
silver-lead  ores  in 141-150 
slate  deposits  of 421-422 
