356  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1905. 
The  following  publications  contain,  in  the  main,  brief  references  to  the  coal  deposits  of 
the  regions  of  which  they  treat.  In  some  cases,  however,  the  articles  devote  a  large  portion 
of  space  to  the  treatment  of  this  subject: 
Hit  kkk,  G.  F.  Report  on  the  geology  of  the  Philippine  Islands.  In  Twenty-first  Ann.  Rept.  pt.  ■ 
pp.  493-02").     1901. 
Dillkk.  I.  S.  A  geological  reconnaissance  in  northwestern  Oregon.  In  Seventeenth  Ann.  RepsB 
pt.  1,  pp.  447-520.     1896. 
Eldridge,  G.  II.  A  geological  reconnaissance  across  Idaho.  In  Sixteenth  Ann.  Kepi .,  pt.  2.  pp.  211- 
276.     I-'.".. 
A  geological  reconnaissance  in  northwest  Wyoming.    Bulletin  No.  119.    72  pp.    1894. 
Emmcns,  S.  F.,  Cross,  W..  and  Eldredge,  G.H.  Geology  of  the  Denver  basin.  Monograph  XXVII. 
55Gpp.     L896. 
Purincton.  ('.  W.  Preliminary  report  on  the  mining  industries  of  the  Telluride  quadrangle,  Colo- 
rado.    In  Eighteenth  Ann.  Kept.,  pt.  3,  pp.  751-848.     L898. 
Russell,  1.  ('.  A  preliminary  paper  on  the  geology  of  the  Cascade  Mountains  in  northern  Wash- 
ington.    In  Twentieth  Ann.   Rept.,  pt.  2,  pp.  89-210.     L900. 
Shalkk.  N.  S.,  and  Woodworth,  .1.  B.  Geology  of  the  Richmond  basin,  Virginia.  In  Nineteenth 
Ann.  Ki  pt..  pt.  2.  pp.  38.5-520.     1899. 
Shaler,  N.  s..  Woodworth,  J.  B.,  and  Foerste,  a.  P.  Geology  of  the  Narragansett  basin.  Mono- 
graph  XXXIII.    402pp.     1899. 
Smith.  G.  0.,  and  White,  l».  The  geology  of  the  Perry  hasin,  in  southeastern  Maine.  Profession*! 
Pap*  r  No.  35.     in?  pp.     1905. 
Stone,  R.  W.  Mineral  resources  of  the  Elders  Ridge  quadrangle,  Pennsylvania.  Bulletin  No.  251 
80  pp.     1905. 
On  pages  8-13  of  this  bulletin  is  given  a  list  of  geologic  folios  with  the  mineral  resources 
briefly  described.      The  following  folios  contain  references  to  coal:    Nos.   1,  2,    1,  (>,  8,  9,   12, 
17.  L9,  21,  22,  24,  25,  26,  28,  33.  3.r>.  40,  44,  45,  47,  49.  53,  54,  58,  59,  60,  07,  68,  69,  71,  72, 
73,  77,  79,  82,  84,  89,  92,  94,  102,  105,  10(5,  107,  1  in,  115,  121,  and  123. 
The  following  publications  are  the  most    importanl  on  peat  and  lignite: 
BuRciiAHu.  I''..  !■'.  Lignites  of  the  middle  and  upper  Missouri  Vall<  y.  In  Bulli  tin  No.  22.5,  pp.  27(- 
288.     1904. 
Knowi.ton.  I''.  II.     Fossils L  and  lignite  of  the  Potomac  formation.     Bulletin  56.    72  pp.     L88S 
Shaler,  X.  s.  Origin,  distribution,  and  commercial  value  of  peal  deposits.  In  Sixteenth  Ann. 
Rept.,  pt.  t.  pp.  305  314.     L895. 
Willis,  B.    The  lignites  ot  the  Great  Sioux  Reservation,  Dakota.     Bulletin  No.  21.    16  pp.    Jss.5. 
