922 
INDEX. 
Page. 
Manhattan  schist,  character  and  distribution 
of 43,629,630,631-632,633 
correlation  of 634 
relations  of 631 
Manitou,  rocks  near 806-807 
Manitou  group,  character  and  distribution  of.      241 
Manitoulin  Islands,  rocks  of 404 
Manitounuck  group,  character  and  distribu- 
tion of 532,534,547 
Manitounuck  Sound,  rocks  near 532 
Mansfield  slate,  character  and  distribution 
of 164,165,166,336 
correlation  of 167, 169 
Manuels  Brook,  rocks  on 516 
Map,  showing pre-Cambrian  rocks  of  Lake  Su- 
perior        330 
showing  pre-Cambrian   rocks   of  North 
America Pocket. 
Marathon,  rocks  at 194 
Marblehead,  rocks  at 570, 574 
Marble  Island,  rocks  of 532, 539 
Marcellon,  rocks  at 722-723 
Marcou,  Jules,  on  California  rocks 870, 899 
on  Lake  Superior 299, 401 
Marcy,  Mount,  rocks  near 601 
Mareniscan  schist,  correlation  of 325, 443 
use  of  term 26,42, 174,376,378 
Margaree  River,  rocks  on 508, 523 
Marietta,  rocks  at 686 
Marion,  rocks  at 722 
Marquette,  rocks  at 722-723 
Marquette  district,  conglomerates  in 159-160 
deformation  in 161, 348, 362 
description  of 155-161 
intrusion  in 138-139 
ores  of 137-138, 146, 154 
rocks  of 120, 122- 
123,  127-133, 137-145, 173, 309, 310, 
312, 315, 321 , 325, 328, 332-333, 335- 
336,  352,  353, 354, 359, 383, 385, 722 
structure  of 152 
succession  in 127, 150, 169 
Marquette  quartz,  character  and  distribution 
of 722 
Marquette  series,  age  of 137 
character  and  distribution  of 122, 
143,309,313,335-336 
correlation  of 149, 189, 207, 306, 317, 325 
iron  ores  of 202, 310 
subdivision  of 127, 144, 145, 156, 335 
succession  of 152-153 
unconformities  beneath  and  in 159, 160 
Marquettian  system,  character  and  distribu- 
tion of 207 
use  of  term 206 
Marsh,  O.  C,  on  Uinta  Mountains  rocks. . .  779, 892 
Marshall,  rocks  near 693 
Marshall  Pass,  rocks  at 816,829 
Marsh  shale,  character  and  distribution  of. . .      863 
Marsters,  F.  V.,  and  Kemp,  J.  F.,  on  Lake 
Champlain  dikes 603-604, 648 
Marten  Lake,  rocks  of 528 
Martin,  D.  S.,  on  Tidewater  gneiss 638, 652 
Martin,  G.  C,  on  Alaska  rocks 884 
Martinica  Mountain,  rocks  of 761 
Page. 
Martinsburg  shale,  correlation  of. 671 
Martins  Falls,  rocks  near 261 
Marvine,  A.  R.,  on  Arizona-Colorado  rocks.  772,892 
on  Colorado  rocks 801, 814, 894 
on  Eagle  River  section 125 
on  Nevada  rocks 792, 892 
Maryland,  correlation  in 44 
granites  of 668 
pre-Cambrian  rocks  of 44, 664-673 
literature  of 664-673 
Marysville,  rocks  near 861, 862-863 
Mascarene  series,  character  and  distribution 
of 493 
correlation  of 493 
Mascota,  rocks  of 763 
Mason,  rocks  near 745, 746 
Massanutten  sandstone,  correlation  of 671 
Massachusetts,  pre-Cambrian  rocks  of 567- 
581, 585, 587, 589 
literature  of 567-581 
Massive  Mountain,  rocks  on 815 
Matawan  River,  rocks  near 537 
Mather,  W.  W.,  on  Adirondack  geology  . . .  598, 647 
on  Connecticut  geology 581, 582, 595 
on  Long  Island  geology 622, 650 
on  southeast  New  York  geology  622, 623-626, 650 
Mathews,  E.  B.,  on  Maryland  Piedmont  669-672, 713 
on  Pikes  Peak  quadrangle 807, 894 
work  of 14 
Mathews,  E.  B.,  and  Clark,  W.  B.,  on  Mary- 
land geology 672, 713 
Mattagami,  rocks  near 431 
Mattagami  River,  rocks  near 433 
Mattawa  River,  rocks  near.  403, 418, 420, 448, 452, 467 
Mattawan  iron  formation,  correlation  of  287, 291-292 
Mattawan  range,  rocks  of 335, 341 
Matthew,  G.  F.,  on  Coastal  series 493, 521 
on  Etchiminian 499, 511, 522, 524 
on  fossil  sponges 100, 497, 521 
on  Kingston  series 494, 521 
on  New  Brunswick 502 
on  Paleozoic  beneath  Cambrian 498, 522 
on  Portland  series 491, 521 
on  St.  John  geology 497-498, 522 
work  of 15 
Matthew,  G.  F.,  and  Bailey,  L.  W.,  on  New 
Brunswick 492-493, 521 
Matthew,  G.  F.,  Ells,  R.  W.,  and  Bailey, 
L.  W.,  on  New  Brunswick  geol- 
ogy  494-495, 521 
Matthew,  G.  F.,  Hartt,  C.  F.,  and  Bailey, 
L.  W.,  on  New  Brunswick  geol- 
ogy  490-491, 521 
Mayhew  Range,  ores  of 204 
Max  Patch  granite,  character  and  distribution 
of 44,  683, 703 
Meads,  A.  D.,  on  Stillwater  well 209, 394 
Mecklenburg  syenite,  character  and  distribu- 
tion of 680 
Medicine  Bow  Mountains,  rocks  in 45, 
833-839,844,845,847-849 
Medicine  Peak,  rocks  of  and  near. .  835, 837-838, 848 
Megantic,  Lake,  rocks  near 488 
Meguma  series,  character  and  distribution 
of 511 
