610  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.   SURVEY,      [bull.  177. 
Petrographic  descriptions;  rocks  of  Michigan,  Marquette  district Ann  15, 
pp  518-522,  526-529,  532-538,  544-549,  556-559,  566-576, 
592-596,  597-598,  599-604,  605;  Mon  xxvm,  pp  154-160, 
'  162-167,  171-174,  176-177,  209-211,  213-216,  223-230,  244- 
251,  258-269,  286-294,  316-321,  336-375,  411-416,  417- 
419,  445-452,  463-481,  490-499,  500-506,  508-513,  518-522 
rocks  of  Michigan  and  Wisconsin Mon  xix,  passim 
of  Minnesota,  Pigeon  Point Bull  109,  pp  32-104 
of  New  Mexico,  Tewan  Mountains Bull  66,  pp  10-17 
serpentine  of  San  Francisco  Peninsula Ann  15,  pp  447-450 
trap  dikes  of  Lake  Champlain  region Bull  107,  pp  18-36 
volcanic  rocks  of  South  Mountain,  Pennsylvania Bull  136,  pp  31-81 
(See,  also,  Petrography.) 
Petrographic  stratigraphy  of  Monument  Mountain,  Massachusetts Ann  14, 
ii,  pp  558-559 
Petrographic  studies  in  Archean  formations  of  Northwestern  States Ann  5, 
pp  209-242 
Petrographic  work  of  Geological  Survey  (to  1889),  review  of Ann  10,  i,  pp  42-52 
Petrography,  bibliography  of  American,  1886, 1887-1889. Bull  44,  p  27;  Bull  75,  p  128 
bibliography  and  index  of  North  American,  1732-1891 Bull  127 
of  North  America,  1887-1899. .  .Bulls  75,  91,  99, 130, 135, 146, 149, 156, 162, 172 
Bonneville  beds,  analysis  and  description  of  yellow  clay  and  white  marl 
of Mon  i,  pp  190,  200-203 
crystallization,  degree  of,  nondependence  of,  on  depth Ann  18,  in,  p  574 
differentiation,  theory  of,  origin  of  magmas  by Ann  17,  n,  p  328 
dike  rocks  of  Lake  Champlain  region Bull  107 
flow  and  fracture  of  rocks  as  related  to  structure Ann  16,  i,  pp  845-874 
granite   rocks  of   middle  Atlantic  Piedmont  Plateau,  especially  central 
Maryland,  origin  and  relations  of Ann  15,  pp  651-740 
lithologic  notes  on  Alaska,  southern Ann  18,  in,  pp  35-59 
mineralogic  lexicon  of  Massachusetts;  Franklin,  Hampshire,  and  Hampden 
counties Mon  xxix,  pp  754-761 ;  Bull  126 
of  California,  Ophir  district Ann  14,  n,  pp  255-264 
San  Francisco  Peninsula Ann  15,  pp  411-414,  416-435,  447-450,  459 
of  Colorado,  Cripple  Creek  district Ann  16,  n,  pp  20-58 
Mosquito  Range Mon  xn,  pp  319-362 
Rico  Mountains,  igneous  rocks  of Ann  21,  n,  pp  79-88 
of  Delaware  traps Bull  59 
of  Grand  Canyon  of  Colorado Ann  14,  n,  pp  520-524 
of  Keweenaw  series Ann  3,  pp  101-115;  Mon  v,  pp  34-133 
of  Massachusetts,  Cape  Ann Ann  9,  pp  605-610 
Green  Mountains Mon  xxin,  pp  45-118, 181-188 
of  Michigan,  Marquette  iron-bearing  district Ann  15, 
pp  447-650  passim;  Mon  xxviii  passim 
of  Minnesota,  Pigeon  Point Bull  109,  pp  32-102 
of  Montana,  Castle  Mountain  district Bull  139,  pp  80-132 
Little  Belt  Mountains,  igneous  rocks  of Ann  20,  in,  pp  463-581 
near  Three  Forks,  rocks  of  Paleozoic  section Bull  110,  pp  47-54 
of  New  York,  Lake  Champlain  region,  bostonite Bull  107,  pp  18-36 
Rensselaer  grit Ann  13,  n,  pp  306-310,  333 
of  Nevada,  Eureka  district,  eruptive  rocks Mon  xx,  pp  335-394 
of  Newark  system Bull  85,  pp  32-36 
in  Connecticut. Ann  21,  in,  pp  60-82 
of  Pennsylvania,  South  Mountain,  igneous  rocks Bull  136 
of  Penokee  iron-bearing  series  . . .  r . Mon  xix,  passim 
