warman.]  ONTARIO ORE.  589 
Ore,  precious-metal;  analysis  of ,  from  Colorado,  Aspen  mining  district Mon  xxxi, 
p226 
analysis  of,  from  Colorado,  Cripple  Creek  district,  Blue  Bird  mine Ann  16, 
ii,  p  124, 175,  199 
from  Colorado,  Custer  County,  Bassick  mine Ann  17,  n,  p  435 
Custer  County,  Geyser  mine Ann  17,  n,  p  457 
Iron  Hill  (sulphide) Mon  xn,  p  556 
Leadville  district  (chloride) Mon  xn,  p  619 
(siliceous) Mon  xn,  p"  602 
Mosquito  Range Mm  xn, pp  536, 537 
Telluride  district.  Smuggler  vein \im  is.  in,  p  835 
Tourtelotte  Park  (oxidized  ) Mon  xxxi,  p  238 
from  Nevada,  Comstock  lode Mon  in,  p  153 
Eureka Mon  vn,  pp  (50-61 
Eureka  district Mon  \  \,  p  313 
from  Utah,  Mercur  mining  district,  <  rolden  <  rate  mine  |  sulphide  > \nn  16, 
ii.  p  424 
Mercur  mining  district,  Marion  Hill \nn  L6,  n,  p394 
Tintic  mining  district  I  massive) Bull  20,  p  87 
deposition  of,  as  sulphides Mon  xn,  pp  562-565; 
Mon  xiii,  pp397,  438;   Mon  xx,  pp  310-311 
by  impregnation \nn  is,  m.  pp  S02-809 
formation  of,  mode  of Mon  xn,  pp  565-569 
of  California;  Nevada  City  and  Grass  Valley  districts Ann  17.  ci,pp  124-144 
of  Colorado,  ('ripple  Creek  district,  occurrence,  deposition,  source,  etc., 
of Ann  16,  ii,  pp  L19-166;  GF  7,p  8 
Elk  Mountains,  distribution  of GF  9,  p  3 
Leadville  district  (  chloride) Mon  xn,  pp  548-549 
description  and  composition  of \nii  2, 
p235;  Mon  xn,  pp  376-377, 543-548, 616-619 
manner  of  occurrence  of Mon  xn,  pp  375,  540-543 
La  Plata  quadrangle GF  60,  p  13 
Telluride  district,  origin  and  age  of Ann  18,  in,  pp  819-825 
of  Idaho,  western-central,  structure  of \nn  20,  m, pp  169-174,214-215 
of  Montana,  Butte  district,  distribution,  deposition,  etc.,  of GF  38,  pp  5  6 
of  Nevada,  Comstock  mines Mon  m ,  pp  21 8-222 
Comstock  vein,  source  of Mon  in,  p  18 
Eureka  district,  age  of M on  vn,  p  105 
arrangement  in  chambers Mon  vn,  p  97 
comparison  of,  with  deposits  of  Raibl,  Carinthia Mon  vn,pl03 
deposition  of,  manner  of Mon  vn,  pp  93-106, 188 
miner' s  classification  of Mon  vn,  pp  59-60 
occurrence  of Ann  4,  pp  244-247 
Prospect  Mountain,  source  of Mon  vn,  p  91 
Prospect  Mountain  and  Ruby  Hill Ann  4,  p  250;  Mon  vn,  pp  50-63 
reduction  of Mon  vn,  p  158 
rhyolite  as  a  source  of Mon  vn,  p  90 
segregation  of Mon  vn,  pp  87-89 
source  of Ann  4,  pp  247-249;  Mon  vn,  pp  80-92, 187 
of  Oregon,  in  veins  of  Bohemia  region Ann  20,  in,  pp  18-19 
pseudomorphism  after  limestone,  evidences  of ,  in Mon  vn,  p  98 
secondary  alteration  of Mon  xn,  pp  550,  553 
(See,  also,  Gold;  Silver,  etc.) 
