536 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Geologic  formations  described — Continued. 
San  Joaquin  clays,  Tertiary,  California, 
Anderson,  7. 
San  Juan  formation,  Colorado,  Cross 
(W.),  1. 
San  Juan  tuff,  Tertiary  volcanic,  Colo- 
rado, Cross  and  Howe,  1. 
San  Juan  breccias,  Colorado,  Puring- 
ton,  3. 
Sankaty  beds,  Quaternary,  New  York, 
Veatch,  4. 
Sankaty  beds,  Quaternary,  Massachu- 
setts, Fuller,  29. 
San  Luis  formation,  Juratrias  ?,  Cali- 
fornia,  Fairbanks,   7. 
San  Miguel  cherts,  California,  Lawson 
(A.  C.),9. 
San  Pablo,  California,  Lawson  (A.  C), 
9. 
San  Pablo,  California,  Osmont,  1. 
San  Pedran  epoch,  Quaternary,  Cali- 
fornia,  Hershey,   14. 
San  Pedro  series,  Pleistocene,  Califor- 
nia, Arnold  and  Arnold,  1. 
San  Pedro  series,  Pleistocene,  Califor- 
nia, Arnold,  2. 
Santa  Claran  epoch,  Quaternary,  Cali- 
fornia,   Hershey,    14. 
Sante  Fe  marl  group.  Tertiary,  New 
Mexico,  Johnson   (D.  W.),  4. 
Sante  Fe  schists,  Cuba,  Hayes, 
Vaughan,    and    Spencer,    1. 
Santa  Margarita  formation,  Neocene, 
California.  Fairbanks,  7. 
Santo  Domingo  rhyolite,  Mexico,  Hill 
(R.    T.i.    L5. 
Saracacbi  formation,  Mexico,  Hill  (It. 
T.).    15. 
Saranac  formation,  New  York,  Cushing, 
10. 
Saratoga  formation.  Cretaceous.  Ar- 
kansas.  Taff,  5. 
Saratogian,  Cambric,  New  York,  Clarke, 
20. 
Saratogian,  proposed  for  Upper  Cam- 
brian,  Walcott,   8. 
Saugus  division,  Pliocene,  Tertiary, 
California,  Hershey,  10. 
Sausalito  cherts,  California,  Lawson 
(A.  C),  9. 
Savanna  sandstone.  Carboniferous,  In- 
dian Territory,  Taff,  2-4. 
Saxicava  sand,  Canada,  Coleman,  5. 
Scanlan  conglomerate,  Cambrian  ?,. 
Arizona,    Ransome,    13. 
Schultze  granite,  pre-Cambrian,  Ari- 
zona, Ransome,  6,  13. 
Schunnemunk  conglomerate,  Devonian, 
New  York,  Eckel,  6. 
Seaforth  limestone,  West  Indies,  Spen- 
cer   (J.  W.),  1. 
Secret  Canyon  shale,  Nevada,  Spurr,  6. 
Seeley  slate,  pre-Cambrian,  Wisconsin, 
Weidman,  5. 
Sellersburg  beds,  Devonian,  Indiana, 
Kindle,  1. 
Geologic  formations  described — Continued. 
Sellersburg  limestone,  Devonian,  In- 
diana, Siebenthal,  2. 
Sellersburg  limestone,  included  in  Ham- 
ilton, Devonian,  Indiana,  Newsom,  3. 
Sellersburg  limestone,  Devonian,  In- 
diana, Hopkins   (T.  C),  11. 
Seminole  conglomerate,  Carboniferous, 
Indian  Territory,  Taff,  2. 
Selma  chalk,  Cretaceous,  Alabama, 
Smith   (E.  A.),  2,  3. 
Selma  chalk  (Rotten  limestone),  Cre- 
taceous,  Mississippi,   Logan,   2. 
Seneca  group,  Devonian,  New  York, 
Schneider,  1. 
Senecan,  Devonic,  New  York,  Clarke, 
20. 
Senora  formation,  Carboniferous,  In- 
dian Territory,  Taff,  2. 
Setters  quartzite,  Maryland,  Mathews 
and  Miller,  1. 
Setters  quartzite,  Cambrian,  Maryland, 
Mathews,  6. 
Severy  shales,  Carboniferous,  Kansas, 
Beede,  6. 
Severy  shales,  Carboniferous,  Kansas, 
Adams,'  Girty,  and  White,  1. 
Sevier  shale,  Ordovician,  Tennessee, 
Keith,  1,  11. 
Sewell  formation,  Carboniferous,  West 
Virginia,  Campbell  (M.  R.),  2,  5. 
Sewickley  limestone,  Carboniferous, 
West  Virginia,   White    (I.   C),  7. 
Sewickley  sandstone.  Carboniferous, 
West   Virginia,   White    (I.   C),   7. 
Sewickley  limestone,  Carboniferous, 
Maryland,  Clark  and  Martin,  6. 
Sewickley  limestone,  Carboniferous, 
Pennsylvania,  Clapp,  4. 
Sewickley  sandstone,  Carboniferous, 
Maryland,  Clark  and   Martin,  6. 
Shady  limestone,  Cambrian,  Tennessee, 
Keith,  4,  9,  11. 
Shady  marble,  Cambrian,  North  Caro- 
lina, Keith,  12. 
Shaffer  shale,  Devonic,  New  York, 
Clarke,  20. 
Shatter  beds,  Cretaceous,  Texas,  Udden 
(Johan  A.),  11. 
Shakopee  dolomite,  Ordovician,  Illi- 
nois,  Bain,    11. 
Sharon  conglomerate,  Carboniferous, 
Ohio,    Prosser,    10. 
Sharon  conglomerate,  member  of  Potts- 
ville  formation,  Carboniferous,  Penn- 
sylvania, Fuller  and  Alden,  1,  2. 
Sharpsville  sandstone,  Carboniferous, 
Pennsylvania,  Stevenson   (J.  J.),  4. 
Sharon  sandstone,  Carboniferous,  Mary- 
land, Clark  and  Martin,  6. 
Shasto-Chico,  California,  Lawson  (A. 
C),  9. 
Shasta-Chico  series,  Cretaceous,  Cali- 
fornia,  Lawson  and  Palache,   1. 
Shasta-Chico  series,  Cretaceous,  Cali- 
fornia, Osmont,  1. 
