498 
INDEX. 
Page. 
Lead-silver  ores,  occurrence  of 132 
Leadville  district,  description  cf,  publica- 
tion of 15-16 
ores  of 109 
Lee,  L.  A.,  aid  of 449 
Lee,  W.  T..  on  Engle  coal  field 240 
work  of 206 
Lehigh  mine,  X.  Dak.,  lignite  of.  analysis  of.      323 
Leith,  C.  K.,  on  iron  ores  of  western  United 
States  and  British  Columbia.  194-200 
work  of 21, 199 
Leonard.  A.  G.,  on  North  Dakota-Montana 
lignite  area 316-330 
work  of 205 
Lewis,  T.  J.,  on  We  her  River  coal 286 
Lewis  and   Clarke    Exposition,   black   sand 
investigation  at L60 
Lewisburg,  Ala.,  coal  at .  section  of 216 
Lick  Creek,  Ky..  coal  on,  analysis  and  sec- 
tions of 262  263 
Lida.  Nev..  ore  deposits  of 01-62 
Lignite,  peat,  and  coal,  bibliography  of..  354  356 
papers  on 203-354 
Lignites,  brown,  analyses  of 322,323 
occurrence  of 321-330 
value  of 22  23 
Lime,  investigation  of 23 
manufacture  of 45,47,393-400 
paper  on 393  400 
S<  i  also  Maine. 
Lime  and  magnesia,  papers  on 385  100 
Lime  Point  .  Nev.,  ore  deposits  of 62 
Limestone,  analyses  of 375,378  383,400,458 
gold  in .">ti 
investigation  of 23 
occurrence  of 309 
requirements  of,  for  glass  making 458 
Limonite,  occurrence  and  character  of.  190  193,  L95 
Lindgren,  Waldemar,  on  Annie  Laurie  mine, 
Utah 87  90 
on  Arizona  copper 102 
on  Hitterroot   Range 132 
on  Oregon  copper 119 
work  in  charge  of 16,19 
Lindgren,  W., and  Graton,  L.C  on  mineral 
deposits  of  New  Mexico 74-86 
Linscott's  pit,  Wyo.,  bentonite  in 447 
bentonite  in,  analysis  of 446 
Litchfield,  [11.,  glass  making  a1 460 
Little  Clearfield  Creek  district.  Pa.,  coal  of.       274 
Lit  1  le  Mahoning  Creek  dist  rict .  Pa.,  coal  of.       278 
Little  Mat  tie  vein,  Colo.,  description  of 37-38 
hit  He  Sandy  River  district,  Ky.,  coal  of..  266-267 
coal  of,  sections  of 266-267 
Littleton.  Ala.,  coal  at,  section  of 216 
Livermore,  Cal.,  magnesite  near 387  :;s^ 
magnesite  near,  analysis  of 390 
mercury  near 388 
Locke,  C.  E.,  work  of 157 
Logan  clay.    See  Sciotoville  clay. 
Lone  Mountain    Nev.,  mines  at 57-58 
Lonsway  mine.  Nev.,  description  of 71-72 
Lookout  Mountain  district,  Ala.,  work  in. .        21 
Lookout  Mountain  Iron  Co.,  mines  of 174-175 
Loon  (reek,  Idaho,  copper  ores  of 108 
Lord,  N.  W.,  work  of 206 
Page. 
Los  Angeles.  Cal. ,  oil  held  near 357-361 
Los  Pinos  River  district,  Colo.,  coal  of...  244-246 
coal  of,  analysis  of 258 
sections  of 245-246 
Lot  No.  20  mine,  Ga.,  ores  of 107 
Loughridge,  R.  II.,  on  Porters  Creek  clay..       420 
Louisville  and  Lexington  Railroad  district, 
coal  of 264-266 
coal  of,  sections  of 265 
Lovelaceville,  Ky.,  clay  near,  analysis  of...      421 
Lou  moor.  \'a.,  iron  ore  at,  analyses  of 188 
development  of 187   188 
Lumberton,  X.  Mex.,  coal  of,  section  of 248 
Luray,  Va.,  copper  deposits  near 140-143 
rocks  near 140-141 
M. 
M .('alley.  Henry,  work  of 211 
MacDonald,  D.  F.,  on  economic  features  of 
northern  Idaho  and  northwest- 
ern Montana 41-52 
work  of 18,41 
,\b ■(  roskey  mine,  Colo.,  coal  of,  analysis  and 
section  of 231 
Mi  Donald.  II.  L.,  work  of 205 
McElmo  formation,  occurrence  and  charac- 
ter of 125 
McLellan  ranch,  N.  Dak.,  lignite  near,  sec- 
tion of 324 
Mackedon,  Joseph,  on  Tokop  mines 63 
Madera    I  rvona  dist  rict ,  l'a.,coalof 273-274 
Madrid    Mc,  graphite  near 480-481 
Magdalena  Range,  N.  Mex.,  ores  of 84 
Magdalena  Mountains,  X.  Mex. ,  ores  of 169 
Magnesia  and  lime,  papers  on 385-400 
Magnesian  limestone,  occurrence  and  devel- 
opment of 397-399 
Magnesite,  invest  igation  of 23 
occurrence  of 385 
Magnesite  deposits  of  California,  analyses 
of 390,391 
burning  of 391 
composition  of 385  386 
description  of 386-390 
uses  of 385-386,391-392 
Magnetite  of  Franklin  Furnace  quadrangle, 
study  of 17 
in  black  sands,  occurrence  of lai'  156 
occurrence  of 183, 196,  198 
Maine,  clays  of 428-431 
clays  of,  analyses  of 430 
geology  of 428-429 
utilization  of 429-431 
graphite  in 480-483 
description  of 480-482 
economic    considerations    concern- 
ing   482-483 
origin  of 482 
Knox  County,  lime  indust  ry  of 393-400 
lime  of,  production  of 395 
limestones  of 396  399 
Maine  Graphite  Co.,  Me.,  graphite  of 480   IS  I 
Mammoth  mine.  Cal.,  copper  of 106 
slate  in,  description  of 449-450 
work  in 23-24 
Manganese,  bibliography  of 201-202 
