warman]  SPHALERITE STANFORD.  749 
Spondylidse  from  Miocene  marls  of  New  Jersey Mon  wiv.  pp  34-36 
Sponges,  relation  of  fossil  medusae  to Mon  xxx,  pp  21-22 
Spongise  from  Cambrian  and  Devonian  of  Nevada,  Eureka  district ... Mon 
vin,  pp  11-12,  99 
from  Lower  ( 'ambrian Vnn  10,  i.  pp  587,  597  -599 
from  Middle  Cambrian  of  North  America Bull  30,  pp  50,  72-01 
of  Olenellus  zone Ann  10,  i,  pp  507-599 
Spring  section,  ideal Ann  3,  p  210 
Spring  water,  general  chemistry  of Mon  xi,  pp  175-178 
Springs,  classes  of,  and  those  in  Lahontan  Basin Mon  xi,  pp  47-55 
of  ( Jalifornia,  Mono  Lake Ann  8,  i,  pp  287-292 
of  Idaho,  Boise  quadrangle GF  45,  p  7 
of  Kaibab  Plateau Mon  ti,  pp  120-130 
of  Lahontan  Basin,  extinct Mon  xi,  p  54 
of  Nebraska,  western _ Ann  10,  i  v,  pp  7»it>-7(>7 
of  Nevada,  Steamboat  Springs  district Mon  xm,  pp  538-340 
Springs,  hot,  character  and  cause  of Ann  14,  n,  pp  68-69 
of  Wyoming Bull  1  10,  pp  67-68 
travertine  and  siliceous  sinter  of Ann  0,  pp  613-676 
Springs,  mineral.      (See  Mineral  Springs.  ) 
Springs  and  spring  deposits  of  Etico  Mountains,  Colorado Vim  21,  n.  pp  L63  L64 
Springs  and  subterranean  streams,  erosion  and  transportation  by Mon  \\\i\, 
pp  28-20 
Sproull  (H.  S.),  gypsum,  statistics  of ME  L885,  pp  458-464 
structural  materials,  statistics  of ME  L885,  pp  395    127 
Spnrr  (J.  E.),  coast  of  Alaska  from  Bristol  Bay  to  Yukon Uaska  (2),  pp  120-121 
economic  geology  of  Mercur  mining  district,  Utah Vnn  16,  n.  pp  570-455 
from  Yukon  mouth  to  Point  Barrow Uaska  (2),  pp  121    L26 
geology  of  Aspen  mining  district.  ( lolorado Mon  \  \  \i 
geology  of  Yukon  gold  district,  Alaska Ann  18,  in,  pp  87-392 
Kowak  River Vlaska  (2),  pp  127    L28 
Kuskokwim  drainage  area Vlaska  (2),  pp  122-123 
Lakes  Iliamna  and  Clark Alaska  (2),  p  lis 
\(  >atak  River V laska  (2),  p  129 
Nusbagak  River Vlaska  (2),  p  119 
reconnaissance  in  southwestern  Alaska,  in  1S0S Vnn  20,  vn.  pp  31-264 
work  in  charge  of,  1896-1900 Ann  18,  i,  pp  52-54; 
Ann  10,  i,  pp53,  117:   Ann  20,  i,  p  132-133;  Ann  21,  i,  p  81 
Spun-   (.J.    E. )  and   Post  (W.   S. ),   report  of    Kuskokwim   expedition  (1898), 
Alaska Vlaska  (2),  pp  28-39 
Square  Lake  limestone  of  Maine,  faunas  of Bull  165,  pp  54-78 
Squaw  Gulch,  Cripple  Creek  district,  Colorado,  character  of  ore  deposits  in.  .Ann  16, 
ii,  pp  174-176 
Squaw  Mountain,  Cripple  Creek  district,  Colorado,  character  of  ore  deposits 
in Ann  16,  n,  p  207 
Stadia  and  transit  work  in  survey  of  Idaho-Montana  boundary  line Bull  170, 
pp  40-47 
Stahl  (E.)  and  Huntley  (D.  B. ),  list  of  ores,  minerals,  and  mineral  substances 
of  industrial  importance  in  Arizona MR  1882,  pp  760-764 
Staked  Plains  formation Bull  84,  p  335 
Stalactite,  analysis  of,  from  Montana,  near  Butte  (sky-blue) Bull  167,  p  76 
description  of,  as  one  of  the  educational  series  of  rocks Bull  150,  pp  97-98 
Stamford  gneiss  in  Massachusetts,  Hoosac  Mountain Mon  xxm, 
pp  45-48;  Bull  86,  p  373 
Stanford  conglomerate  of  Montana GF  55,  p  2 
