ingham, Alabama, iron ores, 160, 162, 163, 166-167
_See also_ Clinton iron ores.

Bisbee, Arizona, copper ores, 47, 198, 204, 314, 316

Bismuth ores, 252-253, 397

Bitumen and asphalt, 56, 151-153, 397

Black Hills, South Dakota, gold ores, 228, 229
tin ores, 262

"Blue ground," occurrence of diamonds in, 291

"Bluestone," 84

Bohemia, uranium and radium ores, 265

Boise Basin, Idaho, monazite deposits, 289

Boleo, Lower California, copper ores, 201

Bolivia, antimony, 247
bismuth, 252, 253
borax, 275
copper, 206
nitrates, 103
petroleum, 128
silver, 232
tin, 261, 262-263
tungsten, 183, 184

Bolivia, commercial and political control of various minerals, 64

Bonne Terre limestone, Missouri, zinc ores, 217

Boone formation, Missouri, zinc ores, 217

Borax, 274-277, 397

Borax Lake, California, borax deposits, 276

Borneo, diamond dust, 268
platinum, 238

Bort, 267, 268, 398

Boulder batholith, Montana, ore-deposits of, 44

Boulder County, Colorado, tungsten ores, 184

Braden copper ores, Chile, 199

Brazil, chromite, 179
coal, 116
diamonds and diamond dust, 268, 292
graphite, 280
iron, 52-53, 162, 165, 167, 313
manganese, 174-175, 176
mica, 286
monazite, 288, 289
oil shales, 151
zirconium, 189-190

Brazil, commercial and political control of various minerals, 64

Briey district, France, iron ores, 161, 163
vanadium, 187

Brinton, Virginia, arsenic ores, 251

British Coal Commission, 367

British Columbia, laws relating to mineral resources, 344

British Empire. _See_ Great Britain.

British Guiana, bauxite, 242, 243

British South Africa, coal, 116

Broken Hill, New South Wales, lead and zinc ores, 209, 212

Bromine, 277-278, 397

Brooks, Alfred H., 404, 408

Brooks, Alfred H., and LaCroix, Morris F., 404

Buhrstones, 269

Building stone, 80-84, 88-90, 397

Bureau of Mines, 403, 406

Burma, lead, 209, 210, 212
rubies, 289, 292
silver, 233
tungsten, 183, 185
zinc, 214, 216

Burrows, J. S., 367

Butler, B. S., Loughlin, G. F., and Heikes, V. C., 44, 55, 230

Butte, Montana, arsenic in copper ores, 251
copper ores, 40, 47, 49, 198-199, 201-203, 207, 208
manganese ores, 177, 314
silver ores, 234, 314
use of placers in locating ores, 316
zinc ores, 215-216