524 
INDEX    TO    NOKTH    AMERICAN    GEOLOGY 
Geologic  formations  described— Continued. 
Midway  stage,  included  in  Eocene,  Ter- 
tiary, Louisiana,  Harris,  2. 
Milburn     beds,     Carboniferous,     Texas, 
Hill  (R.  T.),  3. 
Milbury        limestone,        Massachusetts, 
Perry  and  Emerson,  1. 
Millersburg    formation,    Carboniferous, 
Indiana,  Fuller  and  Ashley,  1. 
Millersburg    formation,    Carboniferous, 
Indiana,  Fuller  and  Clapp,  2. 
Million     beds,     Ordovician,     Kentucky, 
Nickles,  6. 
Millsap  division,  Carboniferous,  Texas, 
Taff,  4. 
Millsap  limestone,  Carboniferous   (Mis- 
sissippian),  Colorado,  Darton,  16. 
Millsap     limestone,     Carboniferous-Tri- 
assic,  Colorado,  Darton,  18. 
Millstone  grit,  Carboniferous,  Missouri, 
Adams   (G.  I.),  3. 
Minnekahta,     Permian,     Carboniferous, 
South  Dakota,  Richardson  (G.  B.),  2. 
Minnekahta       limestone        (Permian?), 
Carboniferous,  Wyoming,   Sniitb    (W. 
S.  T.),  1. 
Minnekahta     limestone,    Carboniferous, 
Black     Hills     region    and     Wyoming, 
Darton,  8,  14,  16,  18,  26. 
Minnekahta     limestone,    Carboniferous, 
South  Dakota,  Darton  and  Smith,   1. 
Minnekahta     limestone,     Carboniferous 
(Permian),   Black  Hills  region,  Jag- 
gar,  5. 
Minnekahta    limestone,    Carboniferous, 
Wyoming,  Darton  and  O'Harra,  1. 
Minnelusa     formation.      Carboniferous. 
Black  Hills,  Darton,  1,  8,  16,  18. 
Minnelusa     formation,      Carboniferous, 
Black  Hills  region,  Jaguar.  5. 
Minnelusa     sandstone,     Carboniferous, 
South  Dakota,  Darton  and  Smith,  1. 
Minnelusa      sandstone,      Carboniferous, 
South  Dakota.  Darton,   14. 
Minnelusa     sandstone,     Carboniferous, 
Wyoming,  Darton  and  O'Harra,  1. 
Minnelusa     sandstone,     Carboniferous, 
Wyoming  and  South  Dakota,  Darton, 
26. 
Minnewaste       limestone,       Cretaceous, 
Black  Hills,  Darton,  1,  8,  16,  18. 
Minnewaste       limestone,       Cretaceous, 
South  Dakota,  Darton  and  Smith,  1. 
Mississippian      series,      Carboniferous, 
Iowa,  Udden,  2. 
Missourian  stage,  Carboniferous,  Iowa, 
Calvin,  1. 
Missourian  stage,  Carboniferous,  Iowa, 
Udden,  3,  8. 
Missourian       division.       Carboniferous, 
Kansas,  Missouri,  Bain,  3. 
Missourian     formation,     Carboniferous, 
Iowa,  Eckel  and  Bain,  1. 
Mitchell    limestone,    Carboniferous,    In- 
diana, Hopkins  (T.  C),  8. 
Mitchell    limestone,    Carboniferous,    In- 
diana, Newsom,  3. 
Geologic  formations  described— Continued. 
Mitchell  limestone,  Lower  Carbonifer- 
ous, Indiana,  Ashley,  2. 
Mitchell  limestone,  Mississippian,  In- 
diana, Hopkins   (T.  C),  11. 
Moccasin  limestone,  Ordovician,  Ten- 
nessee, Keith,  1,  11. 
Modoc  limestone,  Carboniferous,  Ari- 
zona, Lindgren,  28,  29. 
Moencopie  beds,  Triassic,  Arizona, 
Ward   (L.  F.),  1,  5. 
Moencopie  shales,  Utah,  Huntington 
and  Goldthwait,  2. 
Mohawkian,  Champlainic,  New  York, 
'  Clarke,  20. 
Molas  formation,  Carboniferous,  Colo- 
rado, Cross  and  Howe,  1. 
Molas  formation,  Carboniferous  (Pen- 
sylvanian),  Colorado,  Cross  and 
Howe,  3. 
Monmouth  formation,  Cretaceous,  At- 
lantic coast  region,  Darton  and  Keith, 
1. 
Monmouth  formation,  Upper  Creta- 
ceous, Maryland,  Shattuck,  5. 
Monmouth  formation,  Cretaceous,  At- 
lantic coast  region,  Clarke  (W.  B.),  6. 
Monmouth  formation,  Cretaceous,  New 
Jersey,  Prather,  4. 
Monongahela  formation,  Carboniferous, 
Maryland,  Prosser,  'A,  4. 
Monongahela  formation,  Carboniferous, 
Maryland  (included  in  Coal  Meas- 
ures, includes  Pittsburg  coal,  Red- 
stone limestone,  Redstone  coal,  Se- 
wickley  limestone,  Lower  Sewickley 
coal,  Upper  Sewickley  or  Tyson  coal, 
Sewickley  sandstone,  Uniontown 
coal,  Uniontown  sandstone,  Waynes- 
burg  limestone,  and  Waynesburg 
coal),  Clark  and  Martin,  5. 
Monongahela  formation,  Carboniferous, 
Maryland,  Martin  (G.  C),  1. 
Monongahela.  formation  (includes  Elk 
Garden  coal,  Tyson  coal,  Koontz 
coal),  Carboniferous,  Maryland, 
White   (D.),  7. 
Monongahela  formation  (includes  Pitts- 
burg coal,  Redstone  coal,  Sewickley 
coal,  Uniontown  coal,  Waynesburg 
coal),  Carboniferous,  Pennsylvania, 
White  and  Campbell,   1. 
Monongahela  formation,  Carboniferous, 
Pennsylvania,  Campbell  (M.  R.),  6, 
8,  18. 
Monongahela  formation  (Upper  Pro- 
ductive Coal  Measures),  Carbonifer- 
ous, Ohio,  Prosser,  10. 
Monongahela  series,  Carboniferous, 
West  Virginia,  White    (1.   C),  7. 
Monongahela  formation,  Carboniferous, 
Pennsylvania,   Stone    (R.   W.),   2. 
Monongahela  formation,  Carboniferous, 
Maryland,  Clark  and  Martin,  6. 
Monongahela  formation.  Carboniferous, 
Maryland,   Martin,   16. 
