504 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Geologic  formations  described — Continued. 
Choptank  formation.  Miocene,  Mary- 
land. Shattuck,  10. 
Chouteau  formation,  Carboniferous, 
Mississippi   Valley   region,  Keyes,  28. 
Chouteau  limestones.  Carboniferous. 
Missouri,  Adams   (G.  I.),  3. 
Chouteau  beds.  Carboniferous.  Mis 
souri.  Gallaher,  1. 
Chouteau  limestone.  Carboniferous, 
Missouri,  Ball,  1. 
Chouteau.  Carboniferous,  Missouri,  Ball 
and  Smith,  1. 
Chouteau  limestone,  Mississippian. 
Missouri.    Van    Horn,    1. 
Chuar  series,   Nevada.  Spurr,  G. 
Chugwater  format  ion,  Triassic  (?)  and 
Permian  (  ?),  Colorado  and  Wyoming, 
Darton,  16. 
Chugwater  formation,  Triassic  ( ?)  or 
Permian,  Wyoming,  Darton,  16. 
Chugwater  formation,  Triassic  (?), 
Wyoming,  Darton,  l  8. 
Cibolo  beds,  Carboniferous,  Texas,  id 
den    (Johan  A.),  11. 
Cieneguita  beds,  Carboniferous,  Texas, 
Udden   (Johan  A.),  11. 
Cimarron  formation,  Permo-Carbonif 
erous,  Kansas.  Darton,  is. 
Cincinnati  or  Hudson  group,  Silurian. 
Illinois.  Alden,  1. 
Cincinnati  group,  Ordovician,  Tennes 
see.  Foerste,  6. 
Cincinnati  series.  Ordovician.  Ohio,  In- 
diana, and  Kentucky,  Foerste,  8. 
Cincinnati  period,  Ordovician.  Ohio  and 
Indiana.  Nickles,  .".. 
Cincinnatian,  Champlainic,  New  York, 
Clarke,  20. 
Cincinnatian  series,  Ordovician,  In- 
diana. Foerste,   1 1 . 
Cincinnatus  flags,  Devonic,  New  York, 
Clarke.  20. 
Cintura  formation.  Cretaceous,  Ari- 
zona, Ransome,  1".  11.  1  i. 
Cisco  division.  Carboniferous,  Texas, 
Taff.  5. 
Claggetl  formation,  Cretaceous.  Mon- 
tana.   I  Catcher  and   Stanton,   1. 
Claiborne,  Tertiary,  Louisiana,  Lerch, 
2. 
Claiborne  (Lower),  Tertiary,  Louisiana. 
Veatcb.  2,  3. 
Claiborne  (Lower)  stage,  Tertiary. 
Louisiana.   Harris.  2. 
Claiborne  formation.  Tertiary.  Louisi- 
ana, Lerch.  1. 
Claiborne  (Lower).  Tertiary.  Georgia, 
Harris.  ."">. 
Claiborne  (Lower)  stage,  Eocene, 
Texas.  Humble.  13. 
Claibornian,  Tertiary.   Florida.   Hall.   8. 
Clarendon      beds,      Miocene.      Tertiary, 
Texas.  Gidley,  4. 
Clarion  sandstone.  Carboniferous,  West 
Virginia,  White  (I.  C),  7. 
Geologic  formations  described — Continued. 
Clarion  sandstone.  Carboniferous,  Penn- 
sylvania. Butts.  4,  6,  7. 
(Mark  formation,  Carboniferous,  West 
Virginia,  Campbell.  5. 
Clarksburg  limestone.  Carboniferous, 
Maryland,  Clark  and  Martin,  6. 
Clarksburg  limestone.  Carboniferous, 
West  Virginia,  White  (I.  C),  7. 
Clarno  formation,  Tertiary,  Oregon,  in- 
cluded in  Eocene,  Merriam  (J.  C), 
1,  2. 
Clarno  formation,  Oregon,  Knowlton, 
14. 
Clear  Creek  formation,  Pre-Cretaceous, 
California,  llersbey.  2. 
Clear  Creek  volcanic  series.  Trias,  Cali- 
fornia, llersbey.  21. 
Clear  Fork  format  ion.  Carboniferous, 
Texas.  Hill   (R.  T.  I .  ::. 
Cleveland  shale.  Devonian,  Ohio,  Clay- 
pole,  5. 
Cleveland  shale,  Devonian,  Ohio.  Pros- 
ser,  H). 
Cliffwood  clays.  Cretaceous,  New  Jer- 
sey. Knapp   (G.  N.  i.  2. 
Cliffwood  lignitic  sands  and  clays.  Cre- 
taceous. New  Jersey,  Kiimmel  and 
Knapp,  1. 
Cliffwood  <lays.  Cretaceous,  New  Jer- 
sey, Weller,  10. 
Clifton  limestone,  Silurian.  Tennessee, 
1  la\  es  and   LTrich,   1. 
Clifton    limestone.  Tennessee,  Foerste,  5. 
Clifton  limestone,  equivalent  to  Niaga- 
rati,  Silurian,  Tennessee,  Foerste,  7. 
Clinch  sandstone,  Silurian,  Tennessee, 
Keith,  1.  11. 
Clinton  beds,  Silurian.  Missouri.  Gal- 
laher, 1. 
Clinton  formation.  Silurian.  Ohio,  Bow 
nocker,  .".  .",. 
Clinton.  Silurian.  New    fork,  Crabau,  1. 
Clinton  formation,  Silurian,  Maryland, 
Prosser,  ::. 
Clinton  limestone.  Silurian.  Kentucky 
and  Tennessee,  Foerste,  l. 
Clinton  group,  Silurian.  New  York, 
Schneider,  1. 
Clinton  limestone.  Silurian,  Indiana, 
Newsoin.   .">. 
Clinton  limestone,  Silurian.  Ohio,  Pros- 
ser.  10. 
Clinton  limestone.  Silurian,  Tennessee. 
Foerste.  7. 
Clinton  limestone,  Silurian.  Indiana, 
Foerste,   11. 
Clinton  formation,  Silurian,  Canada. 
Cot-kill.   2. 
Cloverly  formation.  Cretaceous.  Wyo 
ming,    Hart  on.    10. 
Coalbrooke  scbist.  pre-Cretaceous,  Ore- 
gon, Oilier.  11. 
Coaledo  formation.  Eocene,  Oregon,  Oil- 
ier. 4. 
Coaledo  formation,  Tertiary,  Oregon, 
Smith   (G.  O.),  6. 
