INDEX. 
491 
Page. 
Book  Cliffs  ooal  field,  geology  of 290-293 
map  of 290 
sections  in 291,297,299,300 
work  in 22 
Borax,  bibliography  of 40G 
Bossburg,  Wash.,  marble  at 383 
marble  at,  analyses  of 383 
Boutwell,  J.  M.,  on  Park  City  district 15,122 
Box  Canyon,    Wash.,    limestone    and    clay 
from 382 
analysis  of 382 
Bradley,  Cal.,  coal  near 223 
Bradshaw  Mountains,  Ariz.,  description  of.       103 
Brea,  occurrence  and  character  of 359-360 
Bricks,  manufacture  of 427, 431-432 
Bridger  Station,  Wyo.,  oil  well  at 347 
Bridger  uplift,  Wyo.,  copper  on 309 
gold  in 308 
Brigham  Young  oil  well,  location  of 342,349 
British  Columbia,  iron  ores  of . .  •. 19G 
Bromide  district,  N.  Mex.,  ores  of 81 
Brooks  mine,  Colo.,  coal  of 231 
Brookwood  coal,  Ala.,  occurrence  of 214 
Buckhorn  mine,  Mont.,  description  of 51 
Bud  Kimball  Draw,  Wyo.,  sections  of 312.313 
Buffalo,  Wyo.,  coal  near 306-307 
coal  near,  sections  of 306-307 
Building  stone  and  road  metal,  bibliogra- 
phy of 451 
paper  on 449-450 
Bull  camp,  Wyo.,  copper  near 308 
Bull  Lake,  Mont. .  rocks  on 43-44 
Bull  River,  Mont.,  mines  on 51 
Bullfrog  district,  Nev.,  work  in 17-18 
Bullfrog-George  mine,  ores  of 62 
Bully  Hill  belt,  Cal.,  mines  of 104-106 
Burchard,  E.  F.,  on  giass  sand  of  middle 
Mississippi  basin 459-475 
on  sand  and  limestone  for  glass  mak- 
ing   452-458 
work  of 24 
Burgess  Point,  Mass.,  clays  on 440 
Burgess  ranch,  N.  Dak.,  lignite  at 326 
Burke  formation,  occurrence  and  character 
of 43,131 
Burlington,  N.  Dak.,  lignite  at,  analyses  of.      323 
Burnside  district,  Pa.,  coal  of 274 
Burro  Mountains,  Nev.,  ores  in 83,118 
Butte  district,  Mont.,  copper  of 112-115 
copper  of,  production  of 112-115 
silver  and  gold  in 95, 112 
smelting  of 96, 113 
See  also  Montana. 
Butcherknife  Creek,  Colo.,  coal  of,  analysis 
and  section  of 230 
Butte  copper  district,  description  of,  publi- 
cation of 15, 18 
Butts,  Charles,  on  Warrior  coal  basin 211-222 
work  of 21,204 
B  uxton  formation,  section  of 470 
C. 
Cabezon,  N.  Mex.,  coal  near,  sections  of..  251-252 
Cabinet  district,   Montana,  mines   of,   de- 
scription of .,..,',.,,..,..,        50 
Page. 
Cabinet  Mountains,  character  of 41 
rocks  of 43-44 
Cactus  Spring.  Nev.,  ore  deposits  near 68 
Calcite,  veins  of 36 
California,  black  sands  from,  investigation 
of 160 
coal  in 223-225 
copper  in 104-106 
go'd  and  silver  in 95,104-105 
production  of 93, 104 
smelting  of 96 
economic  conditions  in 54 
geography  of 53 
Inyo  County,  mines  of 72-73 
iron  in 198 
map  of 54 
minerals  in 56-57 
magnesite  in 385-392 
mining  in 55,72-73 
Monterey    County,    section    in,    figure 
showing 224 
ore  deposits  of,  character  and  occurrence 
of 55-57 
petroleum  in 357-361 
railroads  to 53 
Shasta  County,  copper  of 104-106 
work  in 18,23,198 
Calkins,  F.  C,  work  of 41 
Callahan  Creek,  Montana,  lead-zinc  mines 
on,  description  of 48 
Calumet  conglomerate,  copper  in 109-110 
Cambrian  rocks,  occurrence  of 41,57 
Camp  Seco  belt,  copper  of 106 
Campbell,  II.  D.,  aid  of 21,183,185 
Campbell,  M.  R.,  on  Survey  work  on  coal  in 
1905 203-210 
work  of 22 ,  203, 206 
Canada,  copper  ores  of 96 
Caney,  Kans. ,  glass  making  at 460 
section  near 470 
Canoe  Ridge  coal  mine,  production  of 279 
Carbon  dioxide,  manufacture  of 391 
Carbonero  Junction,  Colo.,  coal  near,  sec- 
tion of 244 
Carboniferous  rocks,  occurrence  of 41 
Carter  coal,  Wyo.,  analysis  of 340 
occurrence  of 337, 349 
Carter  oil  spring,  Wyo.,  location  of 343,349 
Cape  Cod,  clays  of 432-441 
clays  of,  character  of 434-435 
description  of 435-441 
geology  of 432-434 
Cashin,  Colo.,  rocks  at 125-126 
section  near 125 
Cashin  mine,  Colo.,  description  of 125-128 
ores  of 126-128 
production  of 125 
Cassa  Mining  Co.,  Wyo.,  bentonite  of 447 
bentonite  of,  analyses  of 446 
Castlegate  mine,  Utah,  coal  of 296-297 
coal  of,  analyses  of 294 
Castle  Valley,  Utah,  shale  of,  character  of. .      291 
Catletts  Creek,  Ky.,  coal  on,  section  of 263 
Catoctin  schist,  copper  in 143 
occurrence  of HO 
