814  BIBLIOGRAPHY    OF    NOKTH    AMERICAN    GEOLOGY 
Smyth  (C.  H.,  jr. )— Continued. 
5.  Notes  on  the  economic  geology  of  Oneida  County  [New  York]. 
N.  Y.  State  Mus.,  56th  Anr.  Rept.,  pp.  rll5-rll7,  1901. 
Describes  occurrence  and  production  of  the  economic  resources  of  this  county. 
6.  Replacement  of  quartz  by  pyrite  and  corrosion  of  quartz  pebbles. 
Am.  Jour.  Sei..  4th  ser.,  v.  1.  19,  pp.  277-285,  1  pi.  and  1  fig.,  1905. 
7.  The  abstraction  of  oxygen  from  the  atmosphere  by  iron. 
Jour.  Geol.,  vol.  13,  pp.  319-323,  1905. 
Smyth  (H.  L.). 
1 .  The  origin  and  classification  of  placers. 
Eng.  &  Mg.  Jour.,  vol.  79,  pp.  1045-1046,  1179-1180.  1228-1230,  2  tigs.,  1905. 
Smyth  (Henry  Lloyd)  and  Smith  (Philip  S. ). 
L.  The  copper  deposits  of  Orange  County,  Vermont. 
Eng.  &  Mg.  Jour.,  vol.  77,  pp.  677-678,  1904. 
Describes  the  general  geology  of  the  region,  and  the  character,  occurrence,  and  origin  of  the 
copper  ores. 
Sollas  (W.  J.). 
1.    Evolutional  geology. 
Smith,  lust..  Ann.  Rept.  1900,  pp.  289-314.  1  pi.,  1901. 
Souder  (Harrison). 
1.  Mineral  deposits  of  Santiago,  Cuba. 
Am.  Inst.  Mg.  Knurs.,  Trans.,  vol.  35,  pp.  308-321,  11  ti.urs.,  1905. 
Describes  the  occurrence  and  mining  of  manganese,  copper,  and  iron  ores  in  the  vicinity  of 
Santiago,  Cuba. 
Sovereig-n  (L.  Douglas). 
1.  Gems  and  rare  minerals  of  southern  California. 
So.  Cal.  Acad.  Sci.,  Bull.,  vol.  4,  pp.  85-90,  190".. 
Describes  the  occurrence  of  valuable  mineral  deposits  in  San  Diego  County,  Cal. 
Spalding  (E.  P.). 
1.  The  quicksilver  mines  of  Brewster  County,  Texas. 
Eng.  &  Mg.  Jour.,  vol.  71,  pp.  749-750,  6  rigs.,  1901. 
Contains  notes  on  the  character  and  occurrence  of  the  ore. 
Spencer  (Arthur  Coe). 
1.  The  iron  ores  of  Santiago,  Cuba. 
Eng.  &  Mg.  Jour.,  vol.  72,  pp.  633-634,  6  tigs.,  1901. 
Describes  the  character  and  geologic  relations  of  the  ore  bodies. 
2.  The  physiography  of  the  Copper  Eiver  basin,  Alaska. 
Abstract:  Science,  new  ser.,  vol.  13,  p.  189,  1901. 
Contains  abstract  of  paper  read  before  the  Geological  Society  of  Washington. 
3.  The  manganese  deposits  of  Santiago  Province,  Cuba. 
Eng.  &  Mg.  Jour.,  vol.  74,  pp.  247-248,  3  figs.,  1902. 
4.  The  Pacific  mountain  system  of  British  Columbia  and  Alaska. 
Abstract:  Science,  new  ser.,  vol.  16,  pp.  261-262,  1902. 
Discusses  physiography  of  the  mountainous  region  bordering  the  Pacific  Ocean. 
5.  Pacific  mountain  system  in  British  Columbia  and  Alaska. 
Geol.  Soc.  Am.,  Bull.,  vol.  14,  pp.  117-132,  6  pis.,  1903. 
Describes  physiographic  features  and  discusses  their  origin. 
6.  Mineral  resources  of  the  Encampment  copper  region,  Wyoming. 
U.  S.  Geol.  Surv..  Bull,  no  213,  pp.  158-162,  1903. 
Gives  an  account  of  the  general  geology  of  this  region,  and  the  character  and  occurrence  of 
the  deposits  of  copper  i  res. 
7.  Reconnaissance  examination  of  the  copper  deposits  at  Pearl,  Colo. 
U.  S.  Geol.  Surv.,  Bull.  no.  213,  pp.  163-169,  1903. 
Gives  a  brief  account  of  the  geography  and  geology  of  this  region,  and  describes  the  mining 
developments. 
