662  INDEX    TO    PUBLICATIONS    OF    U.   S.   GEOL.   SURVEY,     [mill,  177, 
Rome  sandstone,  origin  of  name *. Bull  81,  p  247 
Romney  shale  of  Maryland,  Virginia,  and  West  Virginia GF  14,  pp  1,  2; 
GF  26,  p  2;  GF  28,  p  3;  GF  32,  p  3;  GF  44,  p  3;  GF  61,  p  4 
Roof  areas,  quantity  of  rain  water  collected  on Ann  14,  it,  p  26 
Roofing  slate.     (See  Slate,  roofing.) 
Roots  as  agents  of  soil  formation Ann  12,  i,  pp  269-274 
Rosacea?  of  Alaska Ann  17,  i,  p  888 
of  Amboy  clays Mon  xxvi,  p  90 
of  Dakota  group Mon  xvn,  pp  142-145 
of  North  America  (extinct)   Mon  xxxv,  pp  110-113 
Roscoelite,  analysis  of,  from  California,  Placerville Bull  167,  p  72 
chemical  constitution  of Bull  125,  p  51 
from  California,  Placerville,  mineralogic  notes  on Bull  167,  pp  70-74 
Rose  Bud  Hill,  Colorado,  Cripple  Creek  district,  character  of  ore  deposits  in Ann 
16,  ii,  p  177 
Roseburg  quadrangle,  Oregon,  forest  conditions  in Ann  21,  v,  p  577 
geology  of GF  49 
Roseite,  chemical  constitution  of Bull  125,  p  50 
Rosenbuschite,  analysis  of . . . . Bull  125,  p  89 
chemical  constitution  of Bull  125,  pp  77,  89,  105 
Rosita  Hills  and  Silver  Cliff  districts,  Colorado,  geology  of Ann  17,  n,  pp  263-403 
mines  of Ann  17,  n,  pp  405-472 
Roslyn  sandstone  of  Washington,  northern Ann  20,  n,  pp  123-127 
Rotalidse  from  Cretaceous  of  New  Jersey Bull  88,  pp  64-68 
Roth  well  (R.  P. ) ,  pyrites,  statistics  of MR  1886,  pp  650-675 
Rotten  limestone  of  Alabama  and  Mississippi Bull  82, 
pp  105,  106,  107,  108,  111,  114,  217,  219 
Rotten  stone,  statistics  of MR  1883-84,  p  722 
Rough  River,  Kentucky,  profile  of WS  44,  p  45 
Roumania,  clay  products  of,  at  Paris  Exposition  of  1900 Ann  21,  vi  cont,  p  389 
petroleum  localities  and  statistics  of Ann  17,  in  cont,  pp  718-720; 
Ann  18,  v  cont,  pp  865-868;  Ann  19,  vi  cont,  pp  142-144; 
Ann  20,  vi  cont,  pp  165-168;  Ann  21,  vi  cont,  pp  223-227 
Rowe  schist  in  Connecticut GF  50,  pp  2,  4 
in  Massachusetts Mon  xxix,  pp  76-78;  Bull  159,  p  84;  GF  50,  pp  2,  4 
Rowlandite,  analysis  of Bull  113,  p  44 
chemical  constitution  of Bull  125,  pp  84,  106 
composition  of Bull  113,  pp  44-48 
Roxton  beds  of  Texas Ann  21,  vn,  p  310 
Royal  formation  along  New-Kanawha  River,  West  Virginia  ..Ann  17,  n,  pp  490-493 
Rubellite,  analysis  of,  from  Maine,  Hebron,  alteration  product  from.  .Bull  55,  pp  25,  30 
occurrence  of MR  1887,  p  560 
Ruby,  occurrence  and  statistics  of.  .MR  1882,  pp  485-486;  MR  1893,  p  633;  Ann  16,  iv, 
pp  599,  604;  Ann  17,  m  cont,  pp  905-909,  923;  Ann  18,  v 
cont,  pp  1197-1198,  1217;  Ann  20,  vi  cont,  pp  573,  576,  599 
Ruby  formation  in  Colorado GF  9,  p  7 
Ruby  Range,  Colorado,  structure  and  rocks  of Ann  14,  n,  pp  199-200 
Rudistae  from  Colorado  formation T Bull  106,  \ >  96 
Ruffner  (W.  H. ),  coal  fields  of  Washington MR  1891,  pp  334-341 
Riihlmann  (R. ),  hypsometric  method  of Ann  2,  pp  550-552 
Ruley  (W.  W. ),  anthracite  coal,  statistics  of Ann  18, 
v,  pp  573-597;  Ann  19,  vi,  pp  480-505 
Rimipfite,  analysis  of Bull  113,  p  18 
chemical  constitution  of Bull  125,  d  54 
