442 
INDEX. 
Pocket  district.  Va.,  coal  of,  analyses  of '417 
coal  of,  character  of 410-417 
coking  of 417-418 
sections  of 412, 414-41G 
development  of 418 
drainage  of 410-41 1 
geology  of 411-412 
location  of 409 
map  of 410 
paper  on 409-418 
structure  of 411 
topography  of 410 
Point  of  Rocks,  Wyo.,  development  at 277 
Polecat  Creek,  coal  section  on 182 
Pompey  coal,  character  and  distribution  of. .        08 
Porter,  coal  near,  analysis  of 303 
Potter  Creek,  Mont.,  coal  on 87 
Powder  River,  section  on 143 
Powder  River  coal,  analysis  of 130 
Price  &  Jones  mine,  description  of 215 
Q. 
Quadrant  formation,  coal  in. 
R. 
115 
Raton  Spring,  N.  Mex.,  coal  near.    See  Gal- 
lina-Raton  Spring  field. 
Raton  Spring  district,  coal  of 347-351 
coal  of,  sections  of 347-350 
Red  Butte  coal,  character  and  distribution  of.        72 
Red  Lodge,  Mont.,  sections  at 95-90 
Red  Lodge  district,  Mont.,  coal  of,  analyses 
of 105 
mining  in 100-101 
Red  Lodge  field,  coal  of , 98-107 
coal  of,  amount  of 100 
analyses  of 105 
character  of 103  100 
markets  for 100-107 
development  of 107 
geology  of 94-98 
location  of 92-93 
map  of 94 
mining  in 99 
paper  on 92-107 
section  of,  figure  showing 98 
structure  of 97-98 
topography  of 93-94 
Reed,  W.  J.,  work  of 330, 352, 304 
Rehder  coal,  character  and  distribution  of. ..        70 
Reinecke,  L.,  work  of 243 
Republic  Coal  Co.  mine,  description  of 70 
Rich,  J.  L.,  work  of 250 
Richards,  R.  W.,  work  of 02 
Richardson,  G.  B.,  on  Harmony,  Colob,  and 
Kanab  fields .' 379-400 
Richardson,  G.  B.,  work  of 11 
Rock  Creek,  Mont.,  sections  on 95-96 
Rock  Creek  district,  Mont.,  coal  of 115 
coal  of,  analyses  of 120 
section  of 115 
Rock  Mesa  coal,  character  an;  i  ;i  ti  Unit  ion  of.        70 
section  of 70 
Rock  Springs  coal  group,  character  and  dis- 
tribution of 261-262. 256, 273-275 
coal  of,  analyses  of 270  271 
sections  of 262 
Page 
Rock  Springs  field  ( northern  part),  access  to.      280 
coal  of 259-275 
amount  of 282 
analyses  of 270  273 
character  of 268-275 
markets  for 281-282 
production  of 279-280 
development  of 275-279 
drainage  of 258 
faults  in  267-26S 
geology  of 259-268 
igneous  rocks  in 268 
maps  of 258, 262 
comment  on 256-257 
mining  in 279-281 
paper  on 256-282 
section  in 259-260 
structure  of 266-268 
timber  in 280-281 
topography  of 257  258 
water  of 281 
Rogers  &  Gapin  mine,  coal  sections  in 175 
Rogue  River  valley  field,  coal  of 402-405 
location  of 401-402 
map  showing ' 401 
structure,  of 402 
Roland  coal,  analysis  of 130 
character  and  distribution  of 130, 142 
Rollins  district,  Colo.,  coal  of 327-329 
coal  of,  analyses  of. 333 
sections  of 328 
Rollins  sandstone,  character  and  distribution 
of 320.323 
Ruby  formation,  character  and  distribution 
of 320 
S. 
Sage  Creek  district,  Mont.,  coal  of 113  114 
coal  of,  analysis  of 120 
section  of 114 
Sand  Creek,  Wyo.,  coal  section  on 173 
San  Mateo  field,  N.  Mex.    See  Gallup-San 
Mateo  field. 
Sarver  mine,  coal  section  in 181 
Sawin,  Robert  D.,  work  of 243 
Schrader,  F.  C,  on  Hosta  Butte  district 305 
work  of 335, 352 
Schramm,  E.  F.,  work  of 165 
Schultz,  A.  R.,  on  Rock  Springs  coal  field . .  256-282 
work  of 5-6, 10 
Schwab  mine,  description  of 209 
Scribner,  Wyo.,  coal  section  near 187 
Sentinel  Butte,  sections  at 20-21, 31 
Sentinel  Butte  field,  N.Dak.-Mont.,  access  to.        16 
clinker  in 23-24 
geology  of 18-20 
lignite  of 22-35 
amount  of 35 
analyses  of 35 
character  of 33-34 
sections  of 24, 20-31, 33 
uses  of 34-35 
location  of 15 
map  showing 15 
map  of 24 
explanation  of 24 
mining  in 35 
