wAKMAN.j  VIRGINIA VOLCANIC.  817 
Virginia;   tin   ore  from  near  Vesuvius,  mineralogy,  geologic   relations,  etc., 
of MR  1893,  pp  180-182 
topographic  maps  of.      (See  Map,  topographic,  of  Virginia;  also  list  on  pp 
97-98  of  this  bulletin.) 
topographic  work  in Ann,  4  pp  13-15;  Ann  5,  p  5; 
Ann  6,  p  8;  Ann  7,  pp  50,  51;  Ann  8,  i,  p  101; 
Ann  9,  pp  52-53,  54,  55;  Ann  10,  i,  p  90;  Ann  11,  i,  p 
36;  Ann  12,  i,  p  27;  Ann  14,  i,  p  172;  Ann  15,  p  116; 
Ann  16,  i,  pp  64,  68,  71;  Ann  17,  i,  pp  97,  99;  Ann 
18,  i,  pp  94,  96, 102;  Ann  19,  i,  p  91;  Ann  20,  i,  p  102 
triangulation  in Bull  122,  pp  66, 69,  70,  73,  76,  77-80,  93-95, 96,  98, 99 
Washington  (D.  C. )  quadrangle,  geology  of GF  70 
waters,  underground,  in  Fredericksburg  quadrangle GF  13,  p  6 
in  Noinini  quadrangle GF  23,  p  4 
in  Washington  (D.  C. )  quadrangle GF  70,  p  7 
well,  artesian,  at  Fort  Monroe Bull  1 45,  pp  44-45 
woodland  area  in Ann  19,  v,  p  5 
zinc  in  Bristol  quadrangle GF  59,  p  8 
zinc,  and  zinc  works  in Ann  2,  p  xxix;  MR  1882,  p  365 
Virginia  slate  of  Lake  Superior  region Ann  21,  in,  p  360 
Virginian  (Middle  Atlantic  Miocene, YorktowD  epoch  of  Dana)  ...Bull  84,  pp  19,  337 
Viscosity,  investigations  of Ann  14,  i,  pp  143-150 
of  solids Bull  73 
pyrometric  use  of  principle  of Bull  54,  pp  239-306 
Viscosity,  solid,  mechanism  of Bull  94 
Vishnu  series  of  rocks  of  Arizona Bull  86,  pp  330-332,  507 
Vitacerc  of  Alaska Ann  17,  i,  p  889 
of  Amboy  clays Mon  xxvi,  pp  107-109 
of  Cretaceous  of  Black  Hills Ann  19,  n,  pp  707-708 
of  North  America  (extinct) Mon  xxxv,  p  120 
of  Yellowstone  Park Mon  xxxn,  n,  p  741 
Vitrinidse,  non-marine  fossil,  of  North  America Ann  3,  p  452 
Vitrophyre,  analysis  of,  from  Colorado,  Rio  Grande  County  (rhyolitic) Bull  148, 
p  179;  Bull  168,  p  161 
from  Colorado,  Telluride  quadrangle GF  57,  p  6 
Viviparidae  of  Bear  River  formation Bull  128,  pp  59-61 
of  Laramie  and  Eocene  of  Utah Bull  34,  pp  31-32 
of  North  America  (non-marine  fossil ) Ann  3,  pp  466-470 
Vogdes  (A.  W.),  bibliography  of  Paleozoic  Crustacea  from  1698  to  1889,  includ- 
ing list  of  North  American  species  and  systematic  arrange- 
ment of  genera Bull  63 
Vogesite,  analysis  of,  from  Germany,  Alsace Ann  20,  in,  p  548 
analysis  of,  from  Montana,  Castle  Mountain  district Bull  139,  pp  135,  136 
in  Colorado,  Telluride  quadrangle GF  57,  p  7 
in  Montana,  Fort  Benton  quadrangle GF  55,  p  3 
Little  Belt  Mountains  (sheets  of) Ann  20,  in,  pp  352,  541-542 
Volatility*  coefficients  of,  for  aqueous  chlorhydric  acid Bull  60,  pp  115-117 
Volcanic  action  in  California,  Lassen  Peak  quadrangle GF  15,  pp  2,  3-4 
in  California,  Marysville  quadrangle GF  17,  pp  1-2 
Nevada  City,  Grass  Valley,  and  Banner  Hill  districts GF  29,  p  2 
in  Colorado,  Cripple  Creek  region,  evidences,  products,  age,  etc.,  of Ann  16, 
ii,  pp  59-109 
San  Juan  region GF  57,  p  1 
Bull.  177—01 52 
