INDEX 
A-*  Page. 
Abe  Lincoln  mine,  Colo.,  ores  in 94 
Aberdeen,  Miss.,  wells  near,  log  of 516-517 
Abiqniu,  N.  Mex.,  copper  at '225 
Abrasive  materials,  publications  on,  list  of  596-597 
Adger,  Ala.,  sections  near 372, 374 
Adger  mine,  Ala.,  section  at 375 
Adirondacks,  western,  pyrite  deposits  of . .  587-588 
Africa,  tin  in,  occurrence  of 178 
tin  in,  publications  on 186 
Ajax  mine,  Colo.,  ores  of 91, 94 
Alabama,  cement,  Portland,  in,  production 
of 498 
coal  in  the  Warrior  basin 357-381 
gold  production  of 32 
iron  ores  in 321-334 
sections  and  well  records  in 327,  328,  331 
silver  production  of 32 
tin  in 164 
Aladdin,  Wyo.,  coal  near 431 
Alaska,  gold  production  of 32 
gold  production  of,  from  quartz  veins..        36 
increase  in   34 
investigations  in,  bulletin  on 11 
lead  production  of 254 
placers  deposits  in,  source  of 34 
silver  production  of 32 
from  quartzose  ore 40 
tin  in,  occurrence  of 181 
publications  on 187 
Alaskite,  Colorado,  occurrence  of 101 
Algeria,  zinc  production  of 253 
Alice  mine,  Mont.,  zinc  in 270 
Alkali  waste,  use  of,  for  Portland  cement. .      500 
Allen,  C.  L.,  analysis  of  limestone  by 535 
Allen,  E.  T.,  assays  of  pyrite  by 129 
Allisonia,  Va.,  zinc  at 269 
Alumina  in  natural  cement,  percentage  of.      501 
in  Portland  cement,  percentage  of 499 
in  slag  cement,  percentage  of 505 
Ameniairon  mines, N.  Y.,  ore  from,  analysis 
of 340 
American  cement  industry,  paper  on 196  505 
American  coal  bed,  occurrence  and  thick- 
ness of 373 
American  Eagle  shaft,  Colo.,  depth  of 90 
American  Nettiemine,  Colo.,  geology,  ores, 
and  development  of 66-71 
section  in,  diagram  showing 67 
Anaconda    Hot    Springs,    Mont.,    limonite 
and  travertine  deposits  at 600-601 
ore  deposits  forming  at  599 
Analyses.    See  rock  names. 
Anderson*  mining    property,   Great    Falls, 
Md.,  gold  mining  at 129-131 
Page. 
Annette  mine,  Colo.,  sidorite  in 108 
Anse  la  Butte,  La.,  asphaltic  deposits  at.  ..      463 
oil  field  at,  development  of 401 
Appa lachian  Mountains,  lead  in 257 
placer  gold  in,  production  of 35 
zinc  production  of 265 
Argentite,  occurrence  of 81, 100 
Arizona,  gold  production  of 32 
gold  production  of,  from  quartz  veins  . .        36 
lead  production  of 254 
silver  production  of 32 
from  copper  ores 41 
from  quartz  veins 1 41 
work  in 25 
Arkansas,  cement,  Portland,  in,  production 
of 198 
zinc  in 265 
Arnold,  Ralph,  paper  by,  on  coal  in  Clal- 
lam County,  Wash 413-421 
paper  by,  on  gold  placers  on  the  coast 
of  Washington 154-157 
work  of 27, 29 
Ashley,  G.  H.,  paper  by,  on  coal  in  Nicholas 
quadrangle,  W.  Va 422-428 
Aspen,  Colo.,  lead  production  at 256 
rocks  at 257 
Asphalt,  papers  on  petroleum,  natural  gas, 
and 436-485 
prospects  of,  in  Utah 468-470, 473-479 
publications  on,  list  of 484-485 
Asphaltic  deposits,  occurrence  of,  in  Texas.      463 
Atchafalaya  River,  La.,  oil  wells  on 462 
Aubrey  formation,  occurrence  of 229, 230 
Auriferous  gravels  of  Indian  Valley  region, 
Cal.,  occurrence  and  character 
of 48-49 
Aurora,  Mo.,  zinc  at 264 
Austin ville,  Va.,  zinc  at 268, 269 
Australian  region,  tin  in,  occurrence  of..  169-172 
tin  in,  production  of ' 162 
publications  on 183 
A nst ria,  tin  in,  occurrence  of 178 
tin  in,  production  of 162 
publications  on 185 
Austria-Hungary,  lead  production  of 252 
zinc  production  of 253 
B. 
Bachelor  mine,  Colo.,  geology  of  and  de- 
velopments at 60-63 
Bain,  H.  F.,  on  zinc  and  lead  deposits 304 
paper  by,  on  lead  and  zinc  resources.  251-273 
Bain,  H.  F.,  and  Ulrich,  E.  ().,  paper  by,  on 
copper  deposits  of  Missouri. . .  233-235 
605 
