914 
INDEX. 
Page. 
Great  Barrington,  rocks  at 571 
Great  Basin,  pre-Cambrian  rocks  of 17, 18 
Great  Bear  Lake,  rocks  near 528,547 
Great  Britain,  pre-Cambrian  rocks  in 47-50 
Great  Codroy  River,  rocks  on 517 
Great  Fish  River,  rocks  on 527 
Great  Miquelon  Island,  rocks  of 516,524 
Great  Placentia,  rocks  of 515 
Great  Salt  Lake,  rocks  near 789 
Great  Slate  formation,  correlation  of 169 
Great  Slave  Lake,  rocks  near 526,527,528,547 
Great  Smoky  Mountains,  rocks  of 680,685,689 
Greely,  A.  W.,  on  Chandler  Fiord  and  Rug- 
gles  River 534,550 
Greenalite,  character  of 244 
Greenfield,  rocks  near 570 
Greenhorn  Mountains,  rocks  of 813-814 
Greenhorn  shale,  character  and  distribution 
of 861 
Green  Lake  limestone,  character  and  distribu- 
tion of 452 
Greenland,  rocks  of 529, 535 
Green  Mountain  gneiss,  character  and  dis- 
tribution of 559, 565 
correlation  of 628 
Green  Mountains,  rocks  of 556,560-561, 
565-566, 567, 575-576, 578-579, 585, 587, 591 
Greenstones,  character  and  distribution  of.  88-89, 
228-233 
Green  Pond  Mountains,  rocks  at 637 
Green  River,  rocks  on 781,893 
Greenville  quadrangle,  rocks  of 682-683, 689 
Greenwood  Lake,  rocks  near 224 
Gregory,  J.  J.  II.,  on  Marblehead  geology..  570,594 
Grenville,  rocks  near 448, 461-462 
Grenville  series,  character  and  distribution 
of 42, 43,97, 100, 
292, 452, 459-480, 613-614, 616-619, 645 
correlation  of 27,  32,  42-43, 
75,  87,  100-102,  317,  434,  457,  459,  471,475, 
476,  479,  502-503,  541,  542,  546,  610,  620 
life  in 459 
relations  of 462-463,475,477,480 
subdivision  of 478 
Grenvillian,  use  of  term 502 
Gresley,  W.  S.,  on  iron  ore  fossils 154 
Grewingk,  C,  on  Alaska  rocks 884 
Greylock  phyllite,    character   and    distribu- 
tion of 576 
Greyson  shale,  character  and  distribution  of. .     861, 
862-863 
fossils  in 99 
Grimsley,  G.  P.,  on  Maryland  rocks 667,713 
Grinnell  argillite,  character  and  distribution 
of 859 
Grinnell  Land,  rocks  of 531,536 
Griswold,  L.  S.,  on  Montana  rocks 857,898 
Gros  Cap,  rocks  near 255,264,290,300,411 
Gros  Cap  greenstone,  character  and  distribu- 
tion of 289 
correlation  of 328-329 
Gros  Ventre  Mountains,  rocks  in 45, 842, 844, 847 
Groveland  formation,  character  and  distribu- 
tion of 164, 165-166 
correlation  of 166-167, 169 
Guadalupe  Mountains,  rocks  of 744 
Page. 
Guanajuato,  rocks  of. 754 
Guatemala,  rocks  of 754, 756 
Guerrero,  rocks  of 754-755, 763-765 
Gull  Rock  Lake,  rocks  of 537 
Gumbel,  — ,  and  Von  Hochstetter  ,  — ,  on 
primitive  gneiss 69-70 
Gunflint  formation,  character  and  distribu- 
tion of 199, 200, 201, 206, 248-249 
correlation  of 248, 328-329 
Gunflint  Lake,  rocks  near 198, 199, 
200, 201, 204-205, 208, 209, 220, 
221-222,  236,  239,  341, 358, 382 
Gunnison  River,  rocks  on 815-819, 829 
Gut  of  Canso,  rocks  of 505 
H. 
Hague,  graphite  near 601, 620 
Hague,  A.,  on  Colorado  rocks 814, 893 
on  Nevada  rocks 798, 893 
on  Utah  rocks 784, 789, 893 
on  Wyoming  rocks 834-836, 843-844, 893, 896 
Hague,  A.,  and  Emmons,  S.  F.,  on  Nevada 
rocks 792-795, 893 
Hague,  A.,  Weed,  W.  H.,  and  Iddings,  J.  P., 
on  Livingstone  quadrangle 856, 898 
on  Yellowstone  Park 843-896 
Haileybury,  rocks  near 431 
Haliburton  area,  rocks  near 472, 483 
Halifax,  rocks  near 677 
Halifax  formation,  character  and  distribution 
of 511 
Hall,  C.  E.,  on  Adirondacks  rocks 600,648 
on  Minnesota  Valley  rocks 241-242, 333 
on  Pennsylvania  rocks 657, 658-659, 712 
Hall,  C.  W.,  on  granites  of  northwest 207, 394 
on  Keweenawan  rocks 243, 396 
on  Lake  Superior  stratigraphy 375 
on  Poplar  and  Devils  Track  rivers.  198-199,393 
on  St.  Louis  River 243, 396 
Hall,  C.  W.,  and  Sardeson,  F.  W.,  on  Minne- 
sota geology 213, 395 
Hall,  James,  on  building  stones 629 
on  New  Ulm  rocks 196-197, 393 
on  Wisconsin  geology 179-180, 
391,  717, 724, 749, 750 
Hall,  S.  R.,  on  Vermont  geology 565, 593 
Halleck  Canyon,  rocks  of 845 
H anbury ,  Lake,  rocks  near 132 
Hanbury  slate,  character  and  distribution  of. .     170, 
171,172,328-329,337 
Hancock,  E.  T.,  on  Black  River  rocks 724, 750 
Hanford  Brook,  rocks  at 499 
Hanna,  G.  B.,  and  Nitze,  II .  B.  C,  on  North 
Carolina  gold 681-682 
Harney  Peak,  rocks  near 728 
Harpers  Ferry,  rocks  of 675, 694-695 
Harpers  shale,  correlation  of 671 
Harrietstown,  rocks  of 600 
Harrison,  Edwin,  on  Missouri  rocks 735, 752 
Hartland  schist,  character  and  distribution 
of 581 
Hartt,  C.  F.,  Bailey,  L.  W.,  and  Matthew, 
G.  F.,  on  New  Brunswick  geol- 
ogy   490-491 , 521 
Hartville  district,  rocks  in 45 
Hartville  Hills,  rocks  of 845 
