INDEX. 
923 
Page. 
Melozi  River,  rocks  on 884 
Melville  Peninsula,  rocks  of 526, 527, 535 
Memphremagog  Lake,  rocks  near 487, 565 
Mendenhall,  W.  C,  on  Alaska  rocks 888 
Mendon  schist,  character  and  distribution  of. .      43, 
566-567 
Menominee  district,  description  of 169-172, 174 
fossils  in 320 
intrusions  in 138-139 
ores  of 146, 151 
rocks  of 124, 132- 
133, 137, 139-140, 147, 190, 202, 310, 
329, 332, 337, 354-355, 359,  362, 383 
succession  in 150-151, 169 
Menominee  River,  rocks  on 111,116,118 
Menominee  series,  character  and  distribution 
of 313,337 
correlation  of 189, 300, 318 
subdivision  of 170 
succession  in 152-153 
Merriam,  W.  N.,  on  Lake  Superior  strati- 
graphy       374 
on  Marquette  district 138 
Merrill,  F.  J.  II.,  on  southeast  New  York 
rocks 629-632, 651 
Merrill,    G.    P.,    on    District   of    Columbia 
rocks 668, 713 
Merrill,  G.  P.,  and  Emmons,  S.  F.,  on  Lower 
California  rocks 762 
Merrimac  group,  character  and  distribution 
of 557, 558 
Merrimac  River,  rocks  near 572 
Mesabi  district,  description  of 243 
iron  of.    See  also  Giants  range;  Mesabi 
range. 
rocks  of 198, 225-227, 243-247, 251, 321, 
325, 328, 333, 339, 351, 355, 358, 382, 385 
Mesabi  range,  faulting  in 348 
iron  ores  of 210, 220-221, 250, 322 
rocks  of. . .  230-201, 212, 219-221, 228, 234-235, 241 
Mesabi  series,  correlation  of 325 
Mesnard  quartzite,  character  and  distribution 
of 156, 328, 336 
correlation  of. .  149, 150, 153, 163, 169, 173, 328-329 
Metamorphic  rocks,  original  state  of 76 
subdivision  of 824-825 
Metamorphism,  downward  increase  of 73 
granite  produced  by 76 
study  of 19 
theory  of,  application  of 62 
Methow  River,  rocks  on 865 
Mexico,  correlation  in 46 
pre-Cambrian  rocks  of 46, 754-768 
literature  of 75 1-755 
Miahuatlan  rocks  near 765 
Mica  Mountain,  rocks  of 541 
Mica  schist  group,  distribution  of 132,134 
Michi-Biju  Lake,  rocks  near 295 
Michigamme  district ,  rocks  of 318 
volcanics  of 146, 154 
Michigamme.  Lake,  rocks  near 212 
Michigamme  Mountain,  rocks  of 152-153 
Michigamme  River,  rocks  on 110-111 
Michigamme  slate,  character  and  distribution 
of '. 158-159, 336 
correlation  of 169, 176-177, 328-329 
Page. 
Michigan,  geologic  section  of 175 
iron  of.    See  Marquette  district;  Menomi- 
nee district;  Gogebic  district. 
mineral  lands  of Ill 
pre-Cambrian  rocks  of 107-178, 332-333,342 
literature  of 108-178 
See  also  Lake  Superior  region;  Upper  Pe- 
ninsula; Lower  Peninsula. 
Michipicoten  district,  geologic  work  in 330 
rocks  of 281 ,  286, 
291, 295-296, 321, 329, 335, 341, 356, 357, 372 
Michipicoten  Island,  rocks  of 254, 255, 257, 
259, 263, 264, 265, 271, 273, 296, 304, 324, 341 
Michipicoten  River,  rocks  near 255, 260, 264, 291 
Middle  River,  rocks  on 188, 304 
Middleville,  rocks  of 599, 615-616 
Midway,  rocks  near 867, 879 
Mill  Creek,  rocks  on 786 
Mille  Lacs,  rocks  near 261 
Miller,  W.  G. ,  on  Archean 27 
on  corundum 471, 483 
on  iron  of  Ontario 292, 400, 426, 432-433, 446 
on  Lake  Temiscaming  rocks 424, 
431,  434,  446,  447 
on  Nipissing  district 424,  446 
on  Sturgeon  Lake  rocks 292, 400 
Miller,  W.  G.,  and  Knight,  C.  W.,  on  correla- 
tion of  Keewatin 27, 475, 483, 621 
Miller,  W.  G.,  and  others  on  Lake  Superior 
region 173-174, 251, 293, 
294-295,  324-327, 390-391,  429-430,  446 
Mill  Peak,  rocks  of 835, 838, 848 
Mills,  J.  E.,  on  Sierra  Nevada  rocks 871, 899 
Mimbres  Mountains,  rocks  of 744 
Mine  la  Motte,  rocks  near 739-740 
Mineville,  rocks  near 607 
Minneopa  Falls,  well  at,  rocks  in 213, 242 
Minnesota,  correlation  in 44 
iron  ranges  in 204, 249 
See  also  Mesabi   district;  Vermilion 
district. 
pre-Cambrian  rocks  of 44, 196-252, 
333, 338-339, 342, 358, 384-385, 725-727 
literature  of 196-252, 725-726 
Minnesota  quartzite,  fossils  of 100, 320 
Minnesota  Valley,  rocks  in 197, 
198,201,241-242,333,339 
Minnetakie,  Lake,  rocks  near 281-282 
Mira,  rocks  at 507 
Mira  Hills,  rocks  at 507 
Miramichi  River,  rocks  on 500 
Misquah  Hills,  rocks  of 204 
Mississagui  quartzite,  character  and  distribu- 
tion of 410, 413 
Mississagui  River,  rocks  on 407-408, 428 
Mississippi  Valley,  pre-Cambrian  rocks  of 17, 
18, 197-198, 201, 237,  333,  717-753 
pre-Cambrian  rocks  of,  literature  of 717-753 
Missoula  River,  rocks  on 851, 861 
Missouri,  correlation  in 44 
pre-Cambrian  rocks  in 44,  733-741 
literature  of 733-740 
Mistassini,  Lake,  rocks  near 422, 534, 544 
Mitchell,  rocks  near 681-682 
Mitchell,  Elisha,  on  North  Carolina  geology. .     677- 
678,714,715 
