218  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SURVEY,      [bull.  177. 
Chrome  iron  ore,  statistics  of MR  1891,  pp  171-173; 
Ann  19,  vi,  pp  259-264;  Ann  20,  vi,  pp  291-292 
(See,  also,  Chromium. ) 
Chrome  ores  of  Turkey,  occurrence,  cost  of  mining,  etc.,  of. .  .Ann  19,  vi,  pp  261-264 
Chromic  iron,  occurrence,  character,  uses,  etc.,  of Ann  17,  in,  pp  261-273 
Chromic  iron  ore,  analyses  of Ann  17,  in,  p  263 
Chromiferous    pseudomorph,    analysis   of,   from  Wyoming,   Running  Water 
River , Bull  20,  p  99 
Chromite,  analysis  of,  from  North  Carolina,  Corundum  Hill Bull  42,  p  52 
analysis  of,  from  North  Carolina,  Macon  County  . . Bull  74,  pp  34,  35 
composition  of Bull  150,  p  31 
Chromium,  alloys  of  iron  and,  uses  of Ann  16,  in,  pp  610-614 
colorimetric  estimation  of  small  amounts  of,   with  special  reference  to 
analysis  of  rocks  and  ores Bull  167,  pp  37-43 
foreign  sources  of MR  1 883-84,  p  571 
separation  of,  in  rock  analyses Bull  78,  pp  87-90 
statistics  of MR  1882,  pp  428-430;  MR  1883-84,  pp  567-573; 
MR  1885,  pp  357-360;   MR  1886,  pp  176-179;   MR  1887, 
pp  132-133;  MR  1888,  pp  119-122;  MR  1889-90,  pp  137- 
140;  Ann  16,  in,  pp  608-614;   (see,  also,  Chrome  iron  ore) 
volumetric  estimation  of  vanadium  in  presence  of  small  amounts  of,  with 
special  reference  to  analysis  of  rocks  and  ores.  .Bull  167,  pp  44-48 
Chromolithograph y  in  ceramics Ann  18,  v  cont,  p  1121 
Chryohydrates  in  relation  to  rock  magmas Bull  66,  p  27 
Chrysoberyl,  occurrence  and  statistics  of MR  1883-84, 
pp  736,  781;  MR  1885,  p  443;  MR  1886,  pp  598,  604;  MR 
1887,  pp  556,  557;  MR  1888,  pp584,  585;  MR  1889-90,  p  446; 
MR  1891,   p  539;    MR  1893,  p  681;   Ann   16,   iv,    p  604 
Chrysocolla,  chemical  constitution  of . Bull  125,  pp  97,  106 
occurrence  and  statistics  of MR  1883-84,  p  778;  Ann  16,  iv,  p  605 
Chrysolite,  analyses  of,  from  North  Carolina,  Jackson  and  Macon  counties. Bull  74,  p  47 
chemical  constitution  of Bull  125,  p  68 
Chrysoprase,  occurrence  and  statistics  of MR  1883-84,  p  760;  MR  1887, 
p  561;  MR  1889-90,  p  448;  MR  1891,  p  540;  MR  1892,  p  781; 
MR  1893,  p  682;  Ann  16,  iv,  p  605;  Ann  17,  in,  cont,  pp  910, 
923;  Ann  18,  v  cont,  pp  1207, 1217;  Ann  19,  vi  cont,  pp  507, 
513;  Ann  20,  vi  cont,  pp  589,  599;  Ann  21,  vi  cont,  p  461 
Chrysotile,  analysis  of,  from  New  Jersey,  Montville Bull  78,  p  15 
Chuar  group  of  rocks  of  Arizona Bull  86,  pp  329-332,  507 
Chuar  terrane,  Grand  Canyon  of  the  Colorado,  section  of An  14,  n,  pp  508-510 
Chugach  Mountains,  Alaska,  notes  on Ann  20,  vn,  pp  375-376 
Chulitna  River  and  Valley,  Alaska,  notes  on Ann  20,  vn-pp  12-13 
Church  (J.  A. ),  quoted  on  Comstock  lode,  Nevada Mon  in,  pp  28-31 
Cidaridre,  Mesozoic,  of  United  States . Bull  97,  pp  33-39 
Cimarron  River,  Kansas,  flow  of,  measurements  of Ann  18, 
iv,  pp  243-244;  Bull  140,  pp  166-168;  WS  11,  p  64 
physiography  of  valley  of WS  6,  pp  21-22 
Ciminite,  analyses  of,  from  Italy,  Monte  Cimino  and  Viterbo Bull  89,  p  66 
Cimolite,  analysis  of,  from  Maine,  Norway Bull  9,  p  12;  Bull  42,  pp  18-19 
chemical  constitution  of Bull  125,  pp  66,  101 
Cincinnati  arch,  course  of Ann  21,  vi  cont,  pp  296-297 
features  of Ann  11,  i,  pp  643-648;  GF  69,  p  1 
relations  of Ann  18,  iv,  pp  428-429 
