496 
INDEX. 
Page. 
Gardner,  J.  EL,  and  Shaler,  M.  K.,  paper  by, 
on  clays  of  Durango-Gallup  coal 
field 296-302 
Gate  City,  Ala.,  glass  sand  at 377 
glass  sand  at,  analyses  of 382 
quarry  at,  limestone  from,  analyses  of. .      251 
Geologic  folios,  character  of 9 
list  of,  showing  mineral  products  de- 
scribed      9-13 
Georgetown,  Idaho,  phosphates  near 461 
Georgetown,  Me.,  feldspar  at 389-390 
feldspar  at,  analysis  of 390 
Georgia,  Cretaceous  rocks  in,  map  showing 
exposures  of 305 
glass  sand  in ^78 
hematite     in,     geologic      relations    and 
development  of 431-432 
mining  of 430  431 
use  of,  in  paint 430 
iron  ores  of,  w  i  rk  on 21,  430-432 
kaolins  and  6re  claj  s  of ,  papi  r  on —  303  31  I 
Georgia  Kaolin  Company,  clays  worked  by..       308 
Genthite,  analyses  of 123  124 
Gerry,  J.  A.,  quarry  of 392 
Gibson,  Ga.,  clay  beds  near 310  311 
Gila  River,  alum  deposits  along,  paper  on.  215  223 
alum  deposits  along,  sketch  map  of  .  - .         218 
alunogen  from,  analyses  of 220 
halotrichite  from,  analyses  of 221 
Glass-making  materials,  papers  on 361  382 
work  on 24 
Glass  sand,  analyses  of 375  376,382 
grain  of 364 
occurrence  oi       364-375,377-381 
prep.irat  ion  of 363-364 
production  of 362  363 
quarries  for •  '' 
work  on 24 
i  liass-sand  indusl  ry  of  indiana,  Kentucky, 
and  l  >hio,  paper  on 31 
Glass  products,  character  and  value  of 361-362 
Glass  works,  locations  and  descriptions  of . .      362 
Glasser,     — ,  cited  onorlgin  of  nickel  ores.. .      127 
Gold  and  si  her.  papers  on 2t>-88 
Survey  publications  on 89-92 
Gold  Hill  shaft,  \\'\  o.,  copper  ores  in.  L05 
Golding  Sons  |         .quarry  of 389 
Good  Fortune  mine,  \,  \  ■«...  producl  Lon  of. .      193 
Goodwin,  F.  M.,  work  done  in  conjunction 
with 56 
<.(inl.ni,  Ga.,  claydeposits  near 
G6thit<  ce  of 154-155 
I  franeros  shale,  analyses  of 23  1.  237,  242 
occurrence  of 234-235. 236-237. 242, 243 
Granite-Bimetallic  mine,  Mont.,  geology  of.       38 
history  and  development  of 36-38 
ore  deposits  at 38   15,  5 1  55 
vein  in,  section  showing 42 
workings  at,  sketch  plan  of 39 
Granite  mine,  Mont.,  operations  al 33 
Granite  Mountain  mine,  Mont.,  operations 
and  ores  at 30-37 
Granite  Railway  Company's  quarry,  gran- 
ite of,  composition  of 358 
Granites,  shades  of,  cause  of 358 
recent  work  on 359-360 
•Page.    I 
Graphite,  analyses  of 427 
deposits  of,  work  on 25  1 
Hartyille    uplift,    Wyo.,    localities    of, 
figure  showing 192    ' 
Haystack  Mills,  Wyo.,  paper  on 426-428    \ 
Graphite,  mica,  etc.,  papers  on 400-429  I 
Survey  publications  on,  list  of 429  ] 
Graton,  L.  C,  cited  on  pegmatites 420,  422  1 
work  of 15, 16 
< ;  ra  ves,  Ala.,  section  at 293  j 
( i  ray  l  >re  Iron  Company,  operations  of . . .  164-168  j 
Guyon,  Ark.,  glass  sand  at 378 
Green  Hope  mine,  Wyo.,  copper  ores  at . .  102-104  1 
Green  Mountain  Boy  copper  mine,  Wyo., 
ores  at 97-98 
Greenspring  mine,  Ala.,  section  of  iron-ore 
seams  in 1 42-1 43 
Grimsley,  G.  P., cited  on  plasl  icity  of  clays  280-281 
Grout,  F.  F.,  Cited  on  plasticity  of  clays. . .  273 
I  ruernsey  formation,  Wyo.,  copper  deposits 
in 97-98,102-105 
description  of 194-195, 203 
<  lypsum,  analysis  of 264 
New  Mexico,  paper  on 260-265 
outcrop  Of,  sketch  map  showing 261 
Survey  publications  on,  list  of 266 
work  on 24,260  265 
II. 
llaaiicl,  Eugene,  quoted  on  electric  reduc- 
tion of  iron  ores 212 
Ball,  Edwin,  acknowledgments  to 93 
Ilaloi  richite,  analj  ses  of 221 
Barbord,  F.  W.,  quoted  on  electric  reduc- 
t  ion  of  iron  ores 212 
Barrell,  W.  F.,  quarry  of,  limestone  at,  sec- 
tion of 248 
Barris,  Cal.,  diatomaceOUS  earth  near 442 
Barris  Canyon,  Cal.,  diatomaceous  cart h  in 
and  near 443 
Barrisburg,  Pa.,  wavelKte  near 474 
Barrisburg  Clay  Company,  Pa.,  operations 
oi    333 
I  l.irt  \  ille,  \V\ ■(..,    copper    mines    near,    pro- 
duel  [on  of 94 
copper  deposh  a  near,  reporl  on -    93-107 
Bartville  formation,  description  of..   ..      195,203 
Bartville  iron-ore  range,  Wyo.,  geography 
of 191 
geology  of 193-196 
production  of L93 
report  on 190-205 
Bartville  uplifl ,  Wyo.,  copper  deposits  in. .  93-107 
economic  map  of 192 
mica  in 423-425 
I  l.i worth,  Erasmus,  cited  on  origin  of  cop- 
per ores 101 
Baws,   A.  .'.,   &   Sons,   mine  of,  clay  from, 
analysis  of 348 
Bawthorn,  Pa.,  clay  near 338  339 
shale  near 337 
Bawthorn    Pottery    Company,    clay  used 
by 338-339 
Bayes,  C.  W.,  field  work  of 23,216 
introduction  by 7-13 
paper  by,  on  Gila  River  alum  deposits   2i5-223 
