222  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SURVEY,     [bull.  177. 
Clay,  analysis  of,  from  Ohio,  near  Sandusky MR  1892,  p  745 
analysis  of,  from  Ohio,  Trumbull  County Ann  19,  vi  cont,  p  486 
from  Ohio,  Wellston Ann  21,  vi  cont,  p402 
from  Pennsylvania,  Butler Ann  19,  vi  cont,  p  486 
Northumberland  County.  .Bull  64,  p  51:  Bull  148,  p  288;  Bull  168,  p  290 
from  Russia,  various  localities Ann  19,  vi  cont,  pp  452,  454,  455, 466-467 
from  Sweden,  various  localities Ann  19,  vi  cont,  pp  466-467 
from  Texas MR  1892,  p  736 
San  Antonio Ann  19,  vi  cont,  p  486 
from  Utah,  Bonneville  region Mon  i,  p  201 
from  Virginia,  Chesterfield  County Ann  19,  vi  cont,  p  486 
from  Washington,  Stevens  County Bull  148,  p  301;  Bull  168,  p  304 
from  Wisconsin,  Hersey Ann  19,  vi  cont,  p  486 
Milwaukee Ann  6,  p  250; 
Bull  42,  pp  143, 144;  Bull  148,  p  294;  Bull  168,  p  297 
from  Wyoming,  various  localities  ("mineral  soap") Ann  18,  v,  p  1146 
chemical  constitution  of Bull  125,  pp  65-66 
kaolin  not  an  essential  ingredient  in  Washoe  rock Mon  in,  p  217 
of  California,  Sacramento  quadrangle GF  5,  p  3 
of  Colorado,  Denver  Basin , Mon  xxvn,  pp  387-392 
Elk  Mountains GF  9,  p  2 
of  District  of  Columbia GF  70,  p  7 
of  Georgia-Tennessee,  Ringgold  quadrangle GF  2,  p  3 
of  Italy,  scaly Ann  16,  i,  pp  500-510 
of  Maryland,  Washington  quadrangle GF  70,  p  7 
of  Massachusetts  and  Rhode  Island,  glacial  brick Ann  17,  i,  pp  951-1004 
suitable  for  paving  brick,  suggestions  concerning. ...  .Ann  16,  n,  pp  324-326 
of  New  Jersey,  Raritan,  and  greensand  marls,  Brachiopoda,  Lainellibranchi- 
ata,  Gasteropoda,  Cephalopoda,  of Mon  ix;  Mon  xvni 
of  Porto  Rico - Ann  20,  vi  cont,  pp  771-772 
of  Rhode  Island  and  Massachusetts,  glacial  brick Ann  17,  i,  pp  951-1004 
of  Tennessee,  Chattanooga  quadrangle GF  6,  p  3 
Ringgold  quadrangle GF  2,  p  3 
of  Utah,  Lake  Bonneville Mon  i,  pp  200-203 
of  Virginia,  Washington  quadrangle GF  70,  p  7 
uses  of MR  1893,  pp  605-609 
Clay,  ball,  analyses  of,  from  England,  Poole  and  Teignmouth.  .Ann  19,  vi  cont,  p  405 
analysis  of,  from  Florida,  Edgar Ann  17,  in  cont,  p  845 
from  Kentucky,  Mayfield Ann  17,  in  cont,  p  845 
from  New  Jersey,  South  Amboy Ann  17,  in  cont,  p  845 
uses  and  localities  of Ann  17,  in  cont,  pp  844-845 
Clay,  bowlder,  description  of,  as  one  of  the  educational  series Bull  150,  pp  69-70 
Clay,  brick,  analysis  of,  from  Alabama,  Lacon Ann  16,  iv,  pp  564-565 
analysis  of,  from  Alabama,  Montgomery  and  Elmore Ann  18, 
v  cont,  pp  1158-1159 
from  Arkansas,  various  localities Ann  16,  iv,  pp  564-565 
from  California,  Placer  County Ann  16,  iv,  pp  564-565 
from  Colorado,  Pueblo Ann  16,  iv,  pp  56 1-565 
from  District  of  Columbia,  Washington Ann  16,  iv,  pp  564-565 
from  Florida,  Escambia  County Ann  16,  iv,  pp  564-565 
from  Georgia,  various  localities Ann  16,  i v,  pp  564-565 
from  Illinois,  La  Salle Ann  16,  iv,  pp  564-565;  Ann  18,  v  cont,  p  1159 
various  localities Ann  16,  iv,  pp  564-565 
from  Indiana,  various  localities Ann  16, 
iv,  pp  564-567;  Ann  18,  v  cont,  pp  1159-1160 
