458 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Dynamic   and   structural   geology  (divisions  by 
subject   matter) — Continued. 
G(  nerai — Continued. 
So-called  alkali  spots  of  drift-sheets, 
Willcox,  2. 
Structure  of  front  range,  northern 
Rocky  Mountains,  Willis,  7. 
Study  of  the  structure  of  fulgurites, 
Julien,  1. 
Study  of  hard-packed  sand  and  gravel, 
Crosby.  5. 
Study  of  minerals  in  the  laboratory, 
Day   (A.  L.),  1. 
Subterranean  gases  of  Cripple  Creek, 
Lindgren,  31. 
Superficial  blackening  and  discoloration 
of  rocks,  Comstock    (T.   B.),   4. 
Superficial  blackening  of  rocks  in  desert 
regions,  Blake  (W.  P.),  15. 
Surface  geology  of  New  Brunswick, 
Stead,   1. 
Syllabus  for  field  and  laboratory  work 
in  geology,  Tarr,   1. 
Technology  of  clays,  Beyer  and  Wil- 
liams, 1. 
Teoria  quimica  para  explicar  la  forma- 
cion  del  petroleo  de  Aragon,  Villa- 
rello,  :'.. 
Tertiary  peneplain  in  Klamath  region, 
California,   Ilershey.    in. 
Theories  of  world  building,  Coleman, 
21. 
Tidal  gage  work  in  Louisiana,  Har- 
ris. 9. 
Typos  of  sedimentary  overlap.  Grabau, 
19. 
Undulations     of     Lockport     limestone, 
'    Gilbert,  23. 
Valleys  of  solution  in  northern  Arkan- 
sas, Purdue,  1. 
Volcanic  origin  of  oil.  Coste.  3. 
Wreck  of  .Mount  Mazama,  Diller,  8. 
Zuni  salt    lake.   Darton,    19. 
Economic  geology. 
.1  laha  urn. 
Alabama  coal  fields.  McCalley,  1. 
Cement  resources  of  Alabama,  Smith 
(E.  A.),  3,  4. 
Clays  of  the  United  States,  Ries,  6. 
Geology  and  cement  resources  of  the 
Tombigbee  River  district,  Eckel  and 
Crider,  1. 
Geology  of  the  Coosa  Valley,  U.  S. 
G.  S.,  1. 
Iron  ores  in  the  Brookwood  quadrangle, 
Burchard,  3. 
Index  to  mineral  resources  of  Ala- 
bama.  Smith  and   McCalley.   1. 
Marble  formations  of  the  Cahaba  River, 
Byrne,   1,  2. 
Materials  and  manufacture  of  Port- 
land cement,  Eckel,   13,  31. 
Origin  of  Clinton  red  fossil  ore,  Bow- 
ron,  1. 
Phosphate  deposits,   Brown    (L.   P.),   1. 
Portland-cement  materials  of  Alabama, 
Smith  (E.  A.),  2,  8. 
Economic  geology — Continued. 
Alabama — Continued. 
Pratt  coal  mines,  Crane,  6. 
Rome  folio,  Hayes  (C.  W.),  5. 
Southern  Appalachian  coal  field,  Hayes 
(C.  W.),  7. 
Warrior  coal  basin  in  the  Brookwood 
quadrangle,    Butts,    5. 
Water    powers    of    Alabama,    Hall    (B. 
M.),  1. 
1  laska. 
Alaskan   tin  deposits,   Collier,   11. 
Alaska's  mineral  wealth,  Brooks,  10, 
13. 
Alaska-Treadwell  mine,   Palaehe,  2. 
Auriferous  quartz  veins  on  Unalaska 
Island,  Collier,  10. 
Bering  River  coal  field,  Martin  (G.  C), 
15. 
Cape  Yaktag  placers,  Martin  (G.  C), 
12. 
Chistochina  gold  field,  Mendenhall,  4. 
Chitina  copper  deposits,  Mendenhall,  7. 
Coal-bearing  series  of  the  Yukon,  Col- 
lier, G. 
Coal  fields  of  Cape  Lisburne,  Collier, 
3,  7. 
Coal  fields  of  Cook  Inlet,  Alaska,  and 
Pacific  coast,  Kirsopp,  1. 
Coal  resources  of  Alaska,  Brooks,  3. 
Coal  resources  of  southwestern  Alaska, 
Stone  (R.  W.),  5. 
Coal  resources  of  the  Yukon,  Collier, 
2,  4. 
Copper  deposits  of  the  Mount  Wran- 
gell  region,  Mendenhall  and  Schrader, 
2. 
Copper   River  country,  Abercrombie,   1. 
Deposition  of  ores  from  an  igneous 
magma,  Stevenson  (R.),  3. 
Economic  developments  in  southeastern 
Alaska,  Wright   (F.  E.  and  C.  W.),l. 
Fairhaven  gold  placers,  Moffit,  3. 
Geology  and  mineral  resources  of  Cop- 
per River  district,  Schrader  and 
Spencer,  1. 
Geology  of  copper  deposits,  Stevens 
(B.),  1. 
Geology  of  Copper  River  region,  Men- 
denhall, 8. 
Geology  of  the  Klondike,  Mendenhall,  3. 
Geology  of  the  Treadwell  ore  deposits, 
Spencer  (A.  C),  11. 
Glenn  Creek  gold  mining  district,  Col- 
lier, 3. 
Gold  deposits  of  Shumagin  Islands, 
Mart  in    (G.   C),   13. 
Gold  mining  in  Alaska,  Furman,  1. 
Gold  mining  in  Arctic  America,  Pen- 
rose, 1. 
Gold  mining  in  Klondike,  Miers,  2. 
Gold  placers  of  Fortymile,  Birch  Creek, 
and  Fairbanks  regions,  Prindle,  2. 
Cold  placers  of  the  Fairbanks  district, 
Prindle,  1. 
Gold  placers  of  Turnagain  arm.  Moffit. 
A. 
