WAEMAN.]  COLORADO.  249 
Colorado,  sandstone  in  Walsenburg  quadrangle GF  68,  pp  5-6 
i Sec  "building  stone,"  under  this  State.) 
sanidine  in  certain  rhyolites  from,  luster  exhibited  by Bull  20,  pp  75-80 
Sawpit,  ore  beds  of Ann  18,  in,  pp  827-830 
sections,  geologic,  in.     (See  Section,  geologic,  in  Colorado.) 
seepage  measurements  on  Thompson  Creek Aim  20,  i v,  p  289 
sewage-disposal  plants  in WS  22,  pp  80-81 
si  I  ver  in  La  Plata  quadrangle GF  60,  p  — 
,    (See  "gold  and  silver,"  under  this  State.) 
Silver  Cliff  and  Rosita  Hills,  geology  of Ann  17,  n,  pp  263-403 
Silver  Mountain,  auriferous  impregnations  of Ann  18,  in,  pp  843-846 
Smuggler  Mountain,  mines  of Mon  xxxi,  pp  180-199 
South  Fork  reservoir  site; Ann  18,  iv,  p  726 
South  Park,  Antero  reservoir  site Ann  18,  iv,  p  726 
South  Platte  Forest  Reserve,  report  on Ann  20,  v,  pp  3-6,86-115 
South  Platte  River,  flow  of,  measurements  of Ann  18,  iv,pp  159-167;  Ann  19, 
iv,  pp  312-316;  Ann  20,  iv,  pp  54,  277-280,  293-294;  Ann  21, 
iv,  pp  201-203,  210;  Bull  140,  pp  102-106;  WS  11,  pp  52-53; 
WS  15,  pp  87-89;  WS  27,  pp  84,  86,  89;  WS  37,  pp  223-227 
Southern  Ute  Indian  Reservation,  water  supply  of,  investigation  of Ann  20, 
iv,  pp  408-434 
Spanish  Peak--,  structure  of Ann  14,  n,  p  224 
stream  measurements  in,  list  of  miscellaneous WS  28,  p  143 
Tal  >le  Mountain,  Golden,  minerals  from  basalt  of Bull  20,  pp  13-39 
Tarrvall  ( 'reek  reservoir  site Ann  18,  iv,  p  726 
Telluride  mining  district,  history,  statistics,  etc.,  of Ann  18,  in,  pp  752-758 
Telluride  quadrangle,  geology  of GF  57 
mining  industries  of Ann  18,  in,  pp  745-850 
Tenmile  district,  geology  of GF  48 
structure  and  rocks  of Ann  14,  n,  pp  222-224 
tin  deposits  of Ann  16,  in,  pp  529-530 
topaz  from,  an  unusual  occurrence  of Bull  20,  pp  81-82 
topographic  maps  of.      (See  Map,  topographic,  of  Colorado.) 
topographic  work  in Ann  3,  p  22;  Ann  4,  pp  6-7,  35-36;  Ann  5,  pp  9,  44-46; 
Ann  7,  p  57;  Ann  10,  n,  pp  18,  68-71;  Ann  11,  n,  pp  299-301; 
Ann  12,  i,  p  45;  Ann  13,  i,  pp  79,  80;  Ann  14,  i,  pp  178, 180; 
Ann  15,  pp  123-124;  Ann  16,  i,  pp  66,  68,  69-70,  71;  Ann  17,  i, 
pp  97,  103-104;  Ann  18,  i,  pp  94,  95, 107;  Ann  19,  i,  pp  89,  90, 
104;  Ann  20,  i,  pp  100,  102,  116;  Ann  21,  i,  pp  120-121,  134 
Tourtelotte  Park,  geologic  structure  and  mines  of Mon  xxxi, 
pp  84-117,  167-180 
t  rt  t  -s  and  shrubs  in  forest  reserves  of Ann  20, 
v,  pp  46-63,  109-115,  123-133,  195-209 
triangulation  in Bull  122,  pp  287-289,  367 
tungsten  in,  occurrence  of Ann  21,  vi,  p  301 
Twin  Lake  Creek,  flow  of,  measurements  of Ann  11,  it,  p  96 
Twin  Lakes  irrigation  reservoir  and  dam Ann  13, 
in,  pp  362-370;  Ann  21,  iv,  pp  238-239 
Uncompahgre  River,  flow  of,  measurements  of Ann  18,  iv,  pp 265-268; 
Ann  19,  iv,  pp  402-404;  Ann  20,  iv,  pp58,  391-392;  Ann  21, 
iv,   pp  279-280;   Bull  140,  pp  188-189;  WS  11,  p  69;  WS 
16,  p  139;  WS  28,  pp  136,   142,   144;  WS  37,   pp  296-297 
profile  of WS44,  p  87 
