722  INDEX    TO    PUBLICATIONS    OF    U.    S.   GEOL.    SURVEY,     [bull.  177. 
Senonian,  Laramie,  and  Eocene  plants,  table  of  distribution  of,  and  discussion 
thereof Ann  6,  pp  443-536 
Sepiolite,  chemical  constitution  of Bull  125,  p  74 
Sepulchre  Mountain,  Yellowstone  Park,  volcanic  rocks  of.  .Mon  xxxn,  n,  pp  121-148 
Sepulchre  Mountain  and  Electric  Peak,  Yellowstone  Park,  eruptive  rocks  of..  Ann  12, 
i,  pp  569-664 
Sequoyah  formation  in  Virginia  and  West  Virginia GF  44,  pp  4,  5 
Sericite  in  Montana,  Butte  district GF  38,  p  7 
thin  section  showing  metasomatic  replacement  of  quartz  in  granodiorite  of 
California  by  calcite  and Ann  17,  n,  p  134 
Sericite-chlorite-schist,  thin  sections  of,  from  Massachusetts,  Green  Mountains 
and  Mount  Greylock Mon  xxm,  pp  150, 152, 153 
Sericite-gneiss  of  Massachusetts,  western Mon  xxix,  pp  206-209 
Sericite-porphyry,  thin   section  of,   from  Michigan,   below  Upper  Quinnesec 
Falls Bull  62,  pp  234-235 
Sericite-schist,  analyses  of,  from  Maryland,  Ladiesburg.  .Bull  148,  p90;  Bull  168,  p  50 
analysis  of,  from  Michigan,  Marquette  district Ann  15, 
p  500;  Bull  148,  p  99;  Bull  168,  p  65 
of  Massachusetts,  western , Mon  xxix,  pp  76-78, 156-163 
thin  section  of,  from  Massachusetts,  Mount  Greylock  (albitic) Ann  16, 
i,  p  567;  Mon  xxm,  p  188 
(See  Phyllite.) 
Sericitization,  a  kind  of  mineralogic  metamorphism Bull  62,  pp  60-62 
of  rock  in  Colorado,  Telluride  district Ann  18,  in,  pp  788-789 
Serpentine,  analysis  of,  from  California,  Angel  Island Ann  15,  p  450 
analysis  of,  from  California,  Butte  County Ann  17,  i,  p  735 
from  California,  Greenville Ann  17, 
i,  p  735;  Bull  148,  p  203;  Bull  150,  p  374;  Bull  168,  p  189 
Mount  Diablo Ann  1 7, 
i,  p  735;  Bull  148,  pp  226-227;  Bull  168,  pp  215,  216 
New  Idria  and  Sulphur  Bank Mon  xin, 
pp  1 10, 1 1 1 ;  Bull  148,  p  223;  Bull  168,  p  212 
San  Francisco Ann  15,  p  450 
from  Colorado,  Leadville  district Mon  xn,  p  598 
from  Maryland,  Harford  County MR  1889-90,  p  400 
from  Massachusetts,  Connecticut  Valley Mon  xxix,  pp  88, 116,  760; 
Bull  126,  pp  151, 153;  Bull  148,  pp  72,  73;  Bull  168,  pp  28,  29 
Hampshire  County  (pseudomorphs  of) Mon  xxix,  p  84 
Newburyport Bull  27,  p  63;  Bull  78,  p  15 
from  Michigan,  Ishpeming MR  1893,  p  567 
Presque  Isle Ann  15,  p  510;  Mon  xxvni,  p  184 
from  New  Jersey,  Montville Bull  60,  p  137;  Bull  64,  p  44;  Bull  78,  p  15 
from  New  York,  Moriah  and  New  York  City Bull  64,  p  43 
from  North  Carolina;  Corundum  Hill  and  Buck  Creek Bull  74, 
p  63;  Bull  78,  p  15 
various  localities Bull  74,  p  63 
from  Washington,  Kittitas  County Bull  168,  p  224 
association  of,  with  Franciscan  series Ann  15,  pp  444-457 
chemical  constitution  of Bull  125,  pp  71,  72,  73,  94, 105 
composition  of Bull  150,  pp  46-47 
decomposition  of Mon  xin,  pp  127-128 
from  Greenville,  California,    description   of,  as  one  of  the  educational 
series Bull  150,  pp  372-374 
