522 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Geologic  formations  described — Continued. 
Mahoning  sandstone,  Carboniferous, 
Pennsylvania,  Butts,  4,  6,  7. 
Mahoning  sandstone,  Carboniferous. 
Pennsylvania,  Richardson   (G.  B.),3. 
Mahoning  sandstone,  member  of /the 
Conemaugh  .formation,  Carbonifer- 
ous, Pennsylvania,  Campbell  (M.  R.), 
18. 
Mahoning  limestone.  Carboniferous. 
Maryland,  Clark  and  Martin,  (!. 
Mahoning  sandstone,  Carboniferous, 
Maryland,   Clark  and   Martin,  G. 
Mahoning  sandstone,  Carboniferous, 
Pennsylvania,    Stone    (R.    W. I .    7.    8. 
Mahoning  sandstone,  Carboniferous. 
Pennsylvania,  Woolsey,  3. 
Main  Street  limestone,  Cretaceous. 
Texas.  Hill    (R.  T.),  3. 
Malone  formation,  Jurassic,  Texas, 
Richardson   (G.  B.i.    1. 
Malone  formation,  Jurassic,  Texas, 
Cragin,    2. 
Mai  1'ais  gravel,  Cuba,  Hayes, 
Vaughan,  ami  Spencer,  1. 
Maltrata,  Cretaceous,  Mexico.  Villa- 
rello  and  Bose,  1. 
Malt  lata  limestone,  Cretaceous.  Mexico. 
Hall   (C.  K.t.  1. 
Manastasli  formation,  Tertiary,  Wash- 
ington,  Smith    iC.  <>.).  s,   13. 
Mancos  shale,  Cretaceous,  Colorado, 
Cross  ami   Spencer,   1. 
Mancos  shale.  Cretaceous.  Colorado. 
Cross    (W.i.  7. 
Mangum  dolomite  member,  Carbonifer- 
ous (Permian),  Oklahoma,  Gould.  11. 
Manhasset  beds,  Quaternary.  New  York. 
Watch,   4. 
Man'itou  limestone,  Ordovician,  Colo- 
rado, Darton,  l«;.  L8. 
Mankomen  formation.  Carboniferous 
(Permian),    Alaska.    Mendenhall,   8. 
Manlius  limestone,  Silurian.  New  York, 
Grabau,  1,  9. 
Manlius  limestone.  Silurian.  New  Jer- 
sey, Weller,  G. 
Manlius  limestone,  Silurian.  New  York. 
Hartnagel,  1. 
Manlius,  Silurian,  New  York.  Schu- 
chert,  4. 
Manlius  limestone,  Silurian,  New  York. 
Van   Ingen  and  Clark,   1. 
Manlius  formation,  Ontaric,  Maryland. 
Schuchert,  7. 
Manlius  limestone,  Ontaric.  New  York. 
Clarke,   20. 
Manlius  limestone,  New  York,  Shinier 
5. 
Manlius  limestone,  Silurian,  New  York. 
Clarke  and  Luther,  3. 
Mannetto  gravel,  Quaternary,  New 
York.  Fuller,  29. 
Mannie  shale,  included  in  Richmond, 
Ordovician,  Tennessee,  Foerste.   6. 
Mansfield  group,  Carboniferous,  In- 
diana, Ashley,  1. 
Geologic  formations  described — Continued. 
Mansfield  sandstone,  Carboniferous,  In 
diana,  Newsom.  3. 
Mansfield  sandstone,  Carboniferous,  In- 
diana, Hopkins  (T.  C),  11. 
Mansfield  sandstone,  Carboniferous, 
Kentucky,  Ulrich,  8. 
Mansfield  sandstone,  Carboniferous 
(Mississippian),  Illinois,  Bain,  19. 
Maquoketa  or  Hudson  River,  Ordovi- 
cian, Iowa,  Calvin,  10. 
Maquoketa  shales,  Iowa,  Beyer  and  Wil- 
liams. 2. 
Maquoketa  shale,  Ordovician,  Illinois, 
Bain,    11. 
Maquoketa  stage,  Ordovician,  Iowa, 
Savage,  8. 
Maquoketa  shales,  Ordovician,  Iowa, 
I'dden    (Jon    A.),    1. 
Marble  Falls  limestone,  Carboniferous, 
Texas,  Hill   (R.  T.),  3. 
Marcellus  shale,  Devonian,  New  York, 
Schneider,  1. 
Marcellus  shales,  included  in  Hamilton, 
Devonian,  New  York,  Cleland,  2. 
Marcellus  shale,  Devonian,  New  York, 
Clarke  and   Luther,   1-3. 
Maria  to  formation,  Pleistocene,  Pan- 
ama, Hershey,  5. 
Marietta  sandstones,  Carboniferous, 
Wesi    Virginia,  White  (I.  C),  7. 
Marine  beds,  Eocene,  Texas,  Dumble, 
13. 
Marion  formation,  Permian,  Oklahoma, 
Gould.  6. 
Marion  formation,  Carboniferous,  Kan- 
sas, Prosser.   7. 
Marion  formation,  Carboniferous,  Kan- 
sas,  Adams,  Girty,  and  White,   1. 
Marion  formation,  Carboniferous,  Kan- 
sas, Prosser  and  Beede,  1. 
Marion  beds,  Carboniferous,  Kansas, 
Wooster,  1,  2. 
Mark  West  andesite,  Tertiary,  Califor- 
nia, Osmont,  1. 
Marshall,  Carboniferous,  Michigan, 
Gregory   (W.  M.),  3. 
Marslialltown  bed,  Cretaceous,  New 
Jersey,  Kiimmel  and  Knapp,  1. 
Marslialltown  clay,  Cretaceous,  New 
Jersey,    ITal  her,  4. 
Martin  Canyon  beds,  Tertiary,  Colo- 
rado, Matthew  (  W.  D.),  2. 
Martin  limestone,  Devonian,  Arizona, 
Etansome,  10,  11,  14. 
Martinez,  California,  Lawson  (A.  C), 
9. 
Mart  insburg  shale,  Ordovician.  Vir- 
ginia,  Watson    (T.   L. ),   17. 
Maryville  limestone,  Cambrian,  Ten- 
nessee, Keith,   1,   11. 
Ma  sc;i  11  formation.  Tertiary,  Oregon. 
Included  in  Miocene,  Merriam  (J. 
C),  1. 
Mascall  formation.  Tertiary,  Oregon, 
Knowlton,   13. 
