warman.]  POWELL PRECIOUS.  633 
Precious  metals:  Auriferous  gravels  of  California Ann  14, 
ii,  pp  425-429,  465-467;  Ann  17,  i,  pp  544-546;  n, 
pp  97,  109;  Ann  18,  n,  p  338;  Bull  84,  pp  219-222, 
321;  GF  3,  p  3;  GF  5,  pp  1,  3;  GF  11,  pp  1,  4-5;  GF 
15,  p  1;  GF  17,  p  1 ;  GF  18,  p  5;  GF  29,  p  4;  GF  31,  pp 
5,  8;  GF  37,  pp  3-4;  GF  39,  p  5;  GF  41,  p  6;  GF  43,  p 
4;  GF  51,  pp  5-6,   7;  GF  63,   pp  5-6;  GF  66,  pp  5-6 
auriferous  quartz  veins,  genesis  of Ann  is,  m,  pp  297-316 
Auriferous  slate  series  of  California  and  Sierra  Nevada Ann  8, 
i,  pp  404,  407;  Ann  14,  n,  pp  445-456;  Ann  17,  i,  pp 
569,  621-632,  659-663,  684-686;  Bull  33,  pp  16-18; 
GF  3,  pp  1,  2;  GF  5,  pp  1,  2;  GF  11,  pp  1,  3;  G  F  15,  p  1 
gangire  minerals  known  to  occur  in  Alaska  mines Ann  18,  in,  pp  61-63 
gold,  concentration  of,  manner  of Ann  18,  in,  p  314 
colloidal  sulphides  of Bull  90,  pp  56-61 
discovery  of,  in  California  and  Nevada Mod  iv,  pp  1-14 
in  Alaska Ann  21,  n,  pp  373-377,  436-437,  482-485,  486 
deposits  and  districts  of,  notes  on Alaska  (  2  ),  pp  22, 
36,  47-48,  60-61, 70-71, 80,  91-95, 101-102,  110, 112,  1  Hi,  125 
Klondike  district Ann  18,  in,  pp  123-124,  359 
Nome  region,  preliminary  report  on Nome 
Prince  William  Sound  and  Copper  River  district,  notes  on Ann 
20,  vii,  pp  421-422 
production  of ,  in  L896,  L897,  and  L898,  by  districts Uaska(2),  p  138 
statistics  of \nn  IS,  in,  pp  II    L2 
southwestern,  notes  on Vnn  20,  VII,  pp  25i)-261 
Sunrise  and  Matanuska  districts Ann  20,  vn.  pp  318  323 
Sushitna  Basin,  notes  on Vnn  20,  vn,  pp  20-41 
Tanana-White  region Vnn  20,  vn,  pp  4S3-488 
in  California,  Bidwell  Bar  quadrangle GF  4;;,  p  6 
Big  Trees  quadrangle GF  51,  pp  7-8 
(  olfax  quadrangle GF  66,  p  7 
Downieville  quadrangle GF  37,  p  8 
Marysville  quadrangle GF  17,  p  2 
Mother  Lode  district GF  63,  pp  7   U) 
Nevada  City,  ( irass  Valley,  and  Banner  Hill  districts GF  29,  pp  5-6 
Placerville  quadrangle GF  3,  p  3 
Pyramid  Peak  quadrangle GF  31 ,  p  8 
Sacramento  quadrangle GF  5,  p  3 
Smartsville  quadrangle GF  18,  pp  5-6 
Sonora  quadrangle GF  41 ,  pp  6-7 
Truckee  quadrangle GF  39,  p  8 
in  Colorado,  Cripple  Creek  district GF  7,  p  8 
Cripple  Creek  district,  free,  tellurides  of,  etc Ann  16,  n,  pp  119-122 
Denver  Basin  (placer) Mon  xxvn,  pp  269-272 
Leadville  district Mon  xn,  pp  376,  513-518,  545,  579,  594 
in  Idaho,  Boise  quadrangle GF  45,  pp  5-6 
in  Montana,  Butte  district GF  38,  p  5 
Fort  Benton  quadrangle GF  55,  pp  5-6 
Livingston  quadrangle GF  1,  p  3 
Three  Forks  quadrangle GF  24,  p  5 
in  North  Carolina,  Knoxville  quadrangle GF  16,  p  6 
in  Oregon,  Roseburg  quadrangle GF  49,  p  4 
in  Philippine  Islands,  occurrence  of Ann  19,  vi  cont,  pp  690-691 
in  Porto  Rico,  occurrence  of Ann  20,  vi  cont,  pp  776,  784 
