610 
INDEX. 
Page. 
Freissleben,  J.  C,  on  copper  in  sea  water..      223 
Freshwater  Bay,  Wash.,  coal  near. 417-418 
section  near 415 
Frisco,  Utah,  mines  near 242 
Frisco  district,  Utah,  lead  production  of . . .      255 
Front  Royal,  Va. ,  copper  mining  near 218 
Fuels,  investigations  of 29 
Fuller's  earth,  publications  on 564 
G. 
Galena,  occurrence  of 62,63,69,82,90,270,297 
Galena  limestone,  section  of,  in  Iowa 306 
Galesbiirg  shale,  character  and  thickness  of.      448 
Garnett,  Kans.,  limestone  at,  analysis  of.. .      509 
Garrey,  G.  H.,  and  Spurr,  J.  E.,  paper  by, 
on  ore  deposits  in  Georgetown, 
Colo.,  mining  district 99-120 
Gasconade    limestone,     occurrence     and 
character  of 234 
"Gas    mounds,"    occurrence    of,    on  Gulf 
coast 161 
Gas,  natural,  analysis  of 481 
deposits  of,  on  Gulf  coast,  surface  indi- 
cations of 463-465 
in  Indian  Territory 443 
in  Watkins  Glen  district,  N.  Y 570-571 
mar  Salt  Lake  City,  paper  on 480-483 
papers  on  petroleum,  asphalt,  and  . . .  436-485 
publications  on,  list  of 484-485 
use  of 509 
Geologic  folios,  character  of 13 
list  of 14-17 
Gem  mine,  Colo.,  location  of 57 
Genesee  mines,  Cal.,  geology  of 47-48 
Georgetown,  Ky.,  lead  at 257-258 
Georgetown  mining  district,  Colo.,  discov- 
ery and  development  of 99-100 
faulting  in 106-107 
geology  of 101-107 
g<  >ld-bearing  area  in 100 
ores  and  ore  bodies  in,  occurrence  and 
character  of 107-120 
si  1  ver-bearing  area  in 100 
topography  of 100 
work  in 26 
Georgia,  cement,  natural,  in  production  of.      503 
cement,  Portland,  in  production  of 498 
gold  production  of 32 
silver  production  of 32 
tin  in 164 
Germany,  copper  in 222 
lead  in 252 
zinc  in 253 
tin  in,  occurrence  of 178 
production  of 162 
publications  on 185 
Gilbert,  G.  K.,  on  Lake  Bonneville 480 
Gilman,  S.  C,  on  Olympic  Peninsula 414,417 
Glassj  porphyry,  Colorado,  occurrence  of..      105 
Glenwood,  Colo.,  hot  springs  at,  utilization 
of 598 
Gold,  deposits  of,  in  Idaho 299-301 
minerals  associated  with 100,110 
ores  of,  in  Colorado 107, 110,  111 
Page. 
Gold,  production  of 32-39 
discussion  of 22  23 
publications  on,  list  of 158-160 
Gold,  free,  occurrence  of,  in  Colorado 107 
Gold,  placer,  in  Idaho 300-301 
Gold  mining,  placer,  on  coast  of  Washing- 
ton, paper  on 154-157 
Golden  Fleece  mine,  Colo.,  developments 
at 83 
ores  of S3 
production  of 83 
Goldrield,  Nev.,  geology  of  region  near..  132-133 
gold  production  of 33 
ore  bodies  at,  forms  of,  figures  show- 
ing    135, 136 
ores  and  ore  deposits  at 132-139 
work  at 26 
Gold  Fissure  mine,  Colo.,  bornite  in 108 
Gold  Hill,  Colo.,  section  at 56 
Grampian  Hills,  Utah,  geology  of 245 
Grand  Canyon  mine,  Ariz.,  description  of . .      231 
Grand  Falls  chert,  ores  in 264 
Grand  View  mine,  Ariz.,  ores  in,  value  of. .        65 
Granite,  Colorado,  character  of 103-104 
porphyritic  forms  of 103 
Granite    industry  of   the    Penobscot    Bay 
quadrangle,  Me.,  paper  on  . . .  489-492 
Granite-porphyry,  Colorado,  character  of..      105 
occurrence  of 104  I 
Grant,  U.  S.,  paper  by,  on  zinc  and  lead  de- 
posits of  southwestern  Wiscon- 
sin   304-310 
Graphic  mines,  N.  Mex.,  zinc  in 271 
Graphite  and  other  abrasives,  publications 
on,  list  of 596-597 
Graton,  L.  C,  paper  by,  on  Carolina  tin 
belt 188-195 
work  of 24, 85-86 
Graton,  L.  C,  and  Hess,  F.  L.,  paper  by,  on 
occurrence  and  distribution  of 
tin 161-187 
Gray  copper,  occurrence  of 100, 107, 109, 118 
Great  Britain,  lead  production  of 252 
zinc  production  of 253 
Great  Falls,  Md.,   gold  veins  near,  notes 
on  128-131 
Greece,  zinc  in,  production  of 253 
Greeley,  Kans.,  limestone  at,  analysis  of...      509 
Gregson  Springs,  Mont.,  utilization  of  wa- 
ters of 599 
Green  Ledge  mine,  Colo. ,  veins  of 48 
Green  Mountain  mine,  Cal.,  geology  of 47 
Gridley,  E.,  on  iron  ores  of  eastern  New 
York 340 
Griffith  mine,  Colo.,  gold-bearing  telluride 
in 100 
sideritein 108 
silver-gold  telluride  in 107 
telluride  of  gold  in 100 
Griswold,  W.  T.,  paper  by,  on  Pittsburg 
coal  in  Burgettstown  quadran- 
gle, Pa 402-411 
work  of 29 
Gruss  mine,  Cal.,  geology  of 47 
Guadaloupe  Mountains,  Tex.,  section  in. . .      577 
topography  of 573-574 
