428         CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,   1907,   PART   II. 
NEVADA. 
The  Rocky  Mountain  coal  fields,  by  L.  S.  Storrs.  Twenty-second  Ann.  Rept.,  pt. 
3,  1902,  pp.  415^71. 
Coal  deposits  between  Silver  Peak  and  Candelaria,  Esmeralda  County.  New,  by 
J.  E.  Spurr.     Bull.  No.  225,  1904,  pp.  289-292. 
Ore  deposits  of  the  Silver  Peak  quadrangle,  Nevada,  by  J.  E.  Spurr.  Prof.  Paper 
No.  55,  1906,  pp.  165-168. 
NEW  MEXICO. 
Report  of  work  done  in  the  division  of  chemistry  and  physics,  mainly  during  the 
fiscal  year  1885-86,  by  F.  W.  Clarke.     Bull.  No.  42,  1887,  p.  147. 
Gives  an  analysis  of  "natural  coke"  from  Purgatory  Canyon,  N.  Mex. 
The  Rocky  Mountain  coal  fields,  by  L.  S.  Storrs.  Twenty-second  Ann.  Rept..  pt. 
3,  1902,  pp.  415-471. 
Coal  fields  of  the  White  Mountain  region,  New  Mexico,  by  C.  A.  Fisher.  Bull.  No. 
225,  1904,  pp.  293-294. 
The  Engle  coal  field,  New  Mexico,  by  W.  T.  Lee.     Bull.  No.  285,  1906,  p.  240. 
The  Durango-Gallup  coal  field  of  Colorado  and  New  Mexico,  by  F.  C.  Schrader. 
Bull.  No.  285,  1906,  pp.  241-258. 
A  reconnaissance  survey  of  the  western  part  of  the  Durango-Gallup  coal  field  of 
Colorado  and  New  Mexico,  by  M.  K.  Shaler.     Bull.  No.  316,  1907,  pp.  376^26. 
The  Una  del  Gato  coal  field,  Sandoval  County,  N.  Mex.,  by  M.  R.  Campbell. 
Bull.  No.  316,  1907,  pp.  427-430. 
Coal  in  the  vicinity  of  Fort  Stanton  Reservation,  Lincoln  County,  N.  Mex.,  by 
M.  R.  Campbell.     Bull.  No.  316,  1907,  pp.  431-434. 
The  coal  field  between  Gallina  and  Raton  Spring,  New  Mexico,  in  the  San  Juan 
coal  region,  by  J.  H.  Gardner.     Bull.  No.  341,  1909,  pp.  335-351. 
The  coal  field  between  Durango,  Colo.,  and  Monero,  N.  Mex.,  by  J.  H.  Gardner. 
Bull.  No.  341,  1909,  pp.  352-363. 
The  coal  field  between  Gallup  and  San  Mateo,  N.  Mex.,  by  J.  H.  Gardner.  Bull. 
No.  341,  1909,  pp.  364-378. 
NORTH  CAROLINA. 
Report  of  work  done  in  the  division  of  chemistry  and  physics,  mainly  during  the 
fiscal  year  1885-86,  by  F.  W.  Clarke.     Bull.  No.  42, 1887,  p.  146. 
Gives  analyses  of  coals  from  Gulf  and  from  Stokes  County,  N.  C. 
Correlation  papers — the  Newark  system,  by  I.  C.  Russell.  Bull.  No.  85,  1892,  coal, 
pp.  36-43. 
The  Atlantic  coast  Triassic  coal  field,  by  J.  B.  Woodworth.  Twenty-second  Ann. 
Rept.,  pt.  3,  1902,  pp.  25-53. 
NORTH  DAKOTA. 
The  Rocky  Mountain  coalfields,  by  L.  S.  Storrs.  Twenty-second  Ann.  Rept.,  pt. 
3,  1902,  pp.  415-471. 
Lignites  of  the  middle  and  upper  Missouri  Valley,  by  E.  F.  Burchard.  Bull.  No. 
225,  1904,  pp.  276-288. 
Describes  the  occurrence  and  character  of  the  lignite  deposits  in  Dakota  County,  Nebraska,  and  in 
North  Dakota. 
The  lignite  of  North  Dakota  and  its  relation  to  irrigation,  by  F.  A.  Wilder.  Water- 
Sup,  and  Irr.  Paper  No.  117,  1905.     59  pp. 
The  North  Dakota-Montana  lignite  area,  by  A.  G.  Leonard.  Bull.  No.  285,  1906, 
pp.  316-330. 
The  Sentinel  Butte  coal  district,  North  Dakota  and  Montana,  by  A.  G.  Leonard  and 
C.  D.  Smith.     Bull.  No.  341,  1909,  pp.  15-35. 
