406  INDEX    TO    PUBLICATIONS    OF    U.   S.   GEOL.   SURVEY,      [bull.  177. 
Iron  and  titanium,  separation  of,  note  on Bull  27,  pp  16-26 
Iron-bearing  carbonates,  analysis  of,  from  Penokee  district Mon  xix,  p  192 
Iron- bearing  district  of  Michigan,  Crystal  Falls,  geology  of Ann  ±9, 
in,  pp  1-151;  Mon  xxxvi 
of  Michigan,  Marquette,  geology  of Ann  15,  pp  477-650;  Mon  xxviii 
Menominee,  geology,  etc.,  of GF  62 
Penokee;  geology  of Ann  10,  i,  pp  341-507;  Mon  xix 
(See,  also,  Iron  ore. ) 
Iron-bearing  formations  of  Marquette  district,  Michigan,  conclusions  concern- 
ing   Ann  15,  pp  163-164;  Mon  xxviii,  passim 
Iron-bearing  member  of  Penokee  series,  origin  and  petrographic  character 
of Ann  10,  i,  pp  349,  380-402;  Mon  xix,  pp  190-198,  200-260 
Iron  belts  of  California,  Ophir  district Ann  14,  n,  pp  263-264 
Iron-biotite,  analyses  of,  from  Maine,  Auburn Bull  55,  pp  16-17 
Iron  bisulphite,  typical  composition  of MR  1885,  p  515 
Iron  carbonate,  analysis  of,  from  Canada,  Gunflint  Lake Mon  xix, 
p  192;  Bull  60,  p  151;  Bull  148,  p  267;  Bull  168,  p  266 
analysis  of,  from  Canada,  Kakabikka  Falls,  Keaministiquia  River Mon  xix, 
p  192;  Bull  148,  p  267;  Bull  168,  p  266 
from  Michigan,  various  localities Mon  xix,  p  192; 
Bull  60,  p  150;  Bull  148,  p  266;  Bull  168,  p  265 
from  Minnesota,  sec.  18,  T.  47,  R.  45  W ." Bull  60,  p  150 
from  Wisconsin,  Penokee  iron  range Mon  xix,  p  192; 
Bull  42,  p  138;  Bull  148,  p  267;  Bull  168,  p  266 
origin  of  ( cherty ) Ann  10,  i,  p  395 
thin  section  of,  from  Canada,  Port  Arthur,  Dawson's  road  (cherty) Ann  10, 
i,  pp  484-485;  Mon  xix,  pp  498-499 
from  Minnesota,  Vermilion  Lake  (cherty) Ann  10, 
i,  pp  484-485;  Mon  xix,  pp  496-497 
from  Ohio,  Lawrence  County  ( cherty ) Ann  10, 
i,  pp  488-489;  Mon  xix,  pp  506-507 
Iron  carburets,  electric  and  magnetic  properties  of Bull  14;  Bull  27,  pp  30-50 
physical  characteristics  of .  .Ann  4,  pp  53-59;  Bull  35 
Iron  industry,  American,  from  its  beginning  in  1619  to  1886 MR  1886,  pp  23-38 
Iron  mica,  analysis  of,  from  Colorado,  Pikes  Peak Bull  55,  p  18 
Iron  ore,  action  of  water  in  formation  of Ann  10,  i,  pp  415-417 
analysis  of,  from  Africa,  Bona  and  Tefna MR  1886,  pp  102, 103 
from  Alabama,  various  localities Ann  19, 
vi,  p  62;  Bull  52,  p  22;  Bull  55,  p  86;  Bull  78,  p  126;  MR 
1883-84,  p  278;  MR  1885,  p  345;  MR  1886,  pp  86,  87,  88,  89, 91 
Woodstock  (manganiferous) Ann  16,  in,  p  400;  MR  1893,  p  124 
from  Algeria  (Mokta) Ann  16,  in,  p  176 
from  Arkansas,  Howard  County Bull  64,  p  53 
near  Polk-Montgomery  county  line Bull  60,  p  168 
Sevier  County Bull  55,  p  86 
from  Brazil,  Minas  Geraes Ann  16,  in,  p  69 
from  British  Columbia,  Taxada  Island Ann  16,  in,  p  54 
from  Canada,  Calabogie  Lake Ann  16,  in,  p  52 
Lac-a-la-Tortue Ann  16,  in,  p  49 
Moisie  River  and  elsewhere  (black  sand) Ann  16,  in,  p  50 
North  Crosby  (titaniferous)  Ann  19,  in,  p  392 
Quebec  Bay,  St.  Paul  (titaniferous) Ann  19,  in,  p  387 
Bedford  station  (Glendower) Ann  16,  in,  p  53 
Haycock  mine Ann  16,  in,  p  48 
Round  Lake Ann  16,  in,  p  52 
