196  INDEX    TO    PUBLICATIONS    OF    IT.    S.    GEOL.    SURVEY,      [bull.  177. 
Cambrian  rocks;  Riley  series  of  Texas,  naming  of Bull  81,  p  246 
Robinson  quartzite  of  Utah Ann  19,  in,  pp  620-622 
Rogersville  shale  of  Kentucky,  Virginia,  Tennessee,  and  North  Carolina. GF  12, 
p  2;  GF  16,  p  3;  GF  25,  p  3;  GF  27,  p  2;  GF  59,  p  3 
Rome  formation  of  North  Carolina,  Georgia,  and  Tennessee GF  2, 
pl;GF4,  p2;  GF6,  pl;GF16,  p3;GF20, 
p  2;  GF  25,  p  3;  GF  27,  p  2;  GF  33,  p  2 
Rome  sandstone  of  Georgia,  naming  of Bull  81,  p  247 
Russell  formation  of  Kentucky,  Virginia,  West  Virginia,  and  Tennessee. -GF  12, 
p  2;  GF  26,  p  2;  GF  44,  p  2;  GF  59,  p  3 
Rutledge  limestone  of  Kentucky,  Virginia,  Tennessee,  and  North  Caro- 
lina. .GF  12,  p  2;  GF  16,  p  3;  GF  25,  p  3;  GF  27,  p  2;  GF  59,  p  3 
St.  Croix  sandstone  of  Upper  Mississippi  Valley    Bull  81,  pp  245,  330-334 
St.  John  group  of  New  Brunswick Bull  10,  pp  9-42;  Bull  81,  pp  61-67 
St.  John's  slate  of  Newfoundland Bull  81,  pp  50-55,  248-249 
Sandsuck  shale  of  Tennessee  and  North  Carolina GF  16, 
p  3;  GF  20,  p  2;  GF  25,  p  2 
Sa watch  quartzite  of  Colorado GF  9,  pp  6,  9;  GF  48,  p  1 
Secret  Canyon  shale  of  Nevada,  at  Eureka Ann  3, 
pp  253-255;  Ann  4,  pp  229,  231,  233;  Mon  vn,  p  7;  Mon  xix,  p  39 
of  Utah  and  Nevada Bull  81,  pp  246,  315 
Selkirk  series  of  Canada Bull  86,  p  340 
Shenandoah  limestone  of  Catoctin  belt Ann  14, 
ii,  pp  337-342;  GF  10,  p  3;  GF  26,  p  2;  GF  32,  p  2 
of  Virginia  and  Tennessee GF  59,  p  3 
Sillery  series  of  Canada Bull  81,  pp  285-286 
slates,  roofing,  of  New  York- Vermont Ann  19,  in,  pp  180-181 
South  American  and  North  American  equivalent  formations Bull  81,  p  379 
Starr  conglomerate  of  Tennessee GF  20,  p  2 
Stockbridge  limestone  of  Massachusetts Bull  86,  p  365,  passim 
of  New  York Ann  13,  n,  pp  301-303,  333 
structure  of  ridge  between  Taconic  and  Green  Mountain  ranges,  and  of 
Monument  Mountain,  Massachusetts Ann  14, 
ii,  pp  525-549,  551-565 
Taconian  or  Taconic  system Bull  86,  pp  379,  390,  464-465,  474,  passim 
Tintic  quartzite  of  Utah GF  65,  p  1 
Tonto  group  or  series  of  Grand  Canyon  of  the  Colorado Bull  81, 
pp  220-221,  245,  356-357 
Tonto  sandstone  of  Grand  Canyon  district Bull  86,  pp  330,  331,  passim 
Unicoi  sandstone  of  Virginia  and  Tennessee GF  59,  p  3 
Upper  Quebec  limestone  of  Wyoming Bull  81,  p  351 
Vermont  formation  of  Green  Mountains,  Massachusetts Mon  xxin, 
pp  48-59, 181-190 
Wallkill  limestone  of  northern  New  Jersey Ann  18,  n,  pp  443-456 
Weisner  quartzite  of  Alabama,  naming  of Bull  81,  p  251 
Western  sandstone  of  Lake  Superior  region Ann  3,pp  155-156; 
Mon  v,  pp  365-366;  Bull  81,  pp  197, 198,  335,  336 
Weverton  sandstone  of  Catoctin  belt Ann  14,  ii,  pp  329-333;  GF  10,  pp  2-3 
Wolsey  shale  of  Montana,  description  and  sections  of Ann  20, 
in,  pp  285,  340,  364;  GF  55,  p  2;  GF  56,  p  2 
Yogo  limestone  of  Montana,  description  and  sections  of Ann  20, 
in,  pp  286,  328,  329,  339,  363,  368;  GF  55,  p  2;  GF  56,  p  2 
(See,  also,  Paleozoic. ) 
Cambrian  time,  North  American  continent  during Ann  12,  i,  pp  523-568 
North  American  continent  and  Europe  during Ann  10,  i,  pp  556-564 
