INDEX, 
495 
*  Page. 
Driftloss  Area,  residual  clay  and  loess  from, 
analyses  of 230 
Dry  Branch,  On.,  clay  deposits  on. . .     30(1-309,314 
Dubuque,  Iowa,  geologic,  section  north  of. .      220 
loess  from ,  analysis  of 230 
Portland  cement  materials  near,  paper 
on 225-231 
Dundee,  Ohio,  glass  sand  at 374 
glass  sand  at,  analysis  of 376 
Durango-Gallup  coal  field,  clays  of,  paper 
on 296-302 
Durango  Pressed  Brick  Company,  opera- 
tions of 297-298 
Fakir,   A.  S.,  cited  on  minerals  in  fuller's 
earth 269-270 
Earth,    diatomaceous.     See    Diatomaceous 
earth. 
Eby,  J.  II.,  and  Berkey,  C.  P.,  cited  on  cop- 
per in  Minnesota 101 
Eckel,  E.  C,  cited  on  analysis  of  Bangor 
limestone 248,249 
cited  on  cost  of  Portland  cement  plant . .      244 
cited  on  gypsum  in  New  Mexico 260 
,    paper  by,  on  investigations  of  iron  ores, 
structural  materials,  etc 20 
on    mineral-paint    ores    of    Lehigh 
Gap,  Pa 435-437 
work  of,  reference*to 7 
Eckel,  E.  C,  and  Burchard,  E.  F.,  report  on 
Birmingham  iron  ores  to  be  pre- 
pared by 21 
Economic  geology,  work  in,  reports  of,  form 
and  titles  of 8-13 
El  Jaro  Creek,  Cal..  diatomaceous  earth  on. .       441 
Eldridge,  G.  II.,  cited  on  geology  of  Coal 
Creek  district,  Colo 112 
Electricity,  use  of,  in  reduction  of  iron  ores. .      212 
Elk  City,  Pa.,  clay  near 342 
Ely,  Nev.,  copper  district  at,  work  in 17 
Emauhee  mine,  Ala.,  description  of 167-168 
ores  of,  analyses  of 177 
Emmons,  S.  F.,  cited  on  origin  of  copper 
ores .   105 
field  work  of . . .- 
report  by,  on  investigations  of  metal- 
liferous ores 14-19 
Emmons,  W.  II.,  paper  by,  on  Granite- 
Bimetallic     and     Cable     mines, 
Mont 31-55 
work  of 17-18 
Empire  mine,  Wyo.,  copper  ores  at 98-99 
Estelle,  Ga.,  paint  ore  at 432 
paint  ore  at,  analysis  of 432 
section  of 432 
Europe,  phosphorus  in,  production  of 481 
Everett  (E.  H.)  Company,  quarry  of 372-373 
E verhard  Company ,  quarry  of 373-374 
Everhart,  E.,  analyses  by 307, 
308,310,311,312,313,314   i 
Fairbanks,  H.  W.,  cited  on  diatomaceous 
earth 439 
Page. 
Fairmount,  Pa.,  shale  near. 337 
Fall  River,  Kans.,  glass  sand  near 380 
glass  sand  near,  analysis  of 312 
limestone  at,  analysis  of 380 
Fallston,  N.  C,  mica  near 414 
Fayetteville,  Pa.,  clay  beds  near 325 
Feldspar,  analyses  of 396 
deposits  of,  work  on 24 
manufacture  of 387-388 
mining  of 389-393, 394-399 
Uses  of 386-387 
Feldspar  and  quartz,  deposits  of,  Maine, 
paper  on 383-393 
deposits  of,  New  York,  paper  on 394-399 
papers  on 383-399 
Fenneman,  N.  M.,  paper  by,  on  clay  re- 
sources of  the  St.  Louis  dis- 
trict   315-321 
Fernando   formation,  diatomaceous   earth 
in  439, 444 
Ferrier,  W.  F.,  and  Weeks,  F.  B.,  paper  by, 
on  phosphates  in  West 449-462 
work  of 25 
Fishersburg,  Ind.,  glass  sand  near 364-365 
Flatwoods  formation.  See  Conasauga  lime- 
stone. 
Florida,  glass  sand  in 378 
Floyd  River,  Iowa,  glass  staid  on 378-379 
Folios,  geologic,  character  of 9 
list  of,  showing  mineral  products  de- 
scribed      9-13 
Foullon,  II.  B.  von,  analysis  by 123 
cited  on  nickel  ores  of  Oregon 126, 127 
paper  by,  en  nickel  ores  from  Oregon, 
r  fer<  nee  to 120 
Fossick    quarry,    near    Darlington,    Ala., 
limestone  from,  analyses  of 158 
Fox  River,  111.,  glass  sand  of,  marketing  of. .       363 
Frankfort,  Ky.,  glass  works  at 363, 370 
Franklin,  Pa.,  clay  near 347 
Franklin  gold  diggings,  Snake  River,  opera- 
tions at 80 
Fredonia,  Kans.,  glass  sand  near 379 
section  near 379 
Freeport  clays,  occurrence  of 339, 342, 347, 351 
Frostburg,  Pa.,  clay  near 342 
Fuller's  earth,  analyses  of 271-272, 277 
base  of 282 
composition  of 289-290 
geology  and  origin  of 268-278 
minerals  in 269-270, 290 
nature  of ' 276-290 
properties  and  tests  of,  paper  on 268-290 
structure  of 283, 288 
Survey  publications  on 355 
tests  of 273-275 
Fusz,  P.  A.,  aid  by 31 
G. 
Gale,  H.  S.,  paper  by,  on  carnotite  in  Colo- 
rado    110-117 
work  of 17 
Galena,  111.,  loess  from,  analysis  of 230 
Gallina,  N.  Mex.,  gypsum  at 262 
Gallup,  N.  Mex.,  clay  industries  near 299-301 
