426         CONTRIBUTIONS   TO   ECONOMIC  GEOLOGY,   1907,   PART  II. 
London  folio,  Kentucky;  description,  by  M.  R.  Campbell.  Geologic  Atlas  U.  S., 
folio  47,  1898. 
The  southern  Appalachian  coal  field,  by  C.  W.  Hayes.  Twenty-second  Ann.  Rept., 
pt.  3,  1902,  pp.  227-263. 
An  account  of  the  stratigraphy,  distribution,  and  character  of  the  coals  of  the  Jellico,  Chattanooga, 
and  Birmingham  districts,  embracing  parts  of  Kentucky,  Tennessee,  Georgia,  and  Alabama. 
The  eastern  interior  coal  field,  by  G.  H.  Ashley.  Twenty-second  Ann.  Rept.,  pt. 
3,  1902,  pp.  265-305. 
An  account  of  the  coal  field  embracing  parts  of  Indiana,  Illinois,  and  Kentucky. 
The  Cumberland  Gap  coal  field  of  Kentucky  and  Tennessee,  by  G.  H.  Ashley. 
Bull.  No.  225,  1904,  pp.  259-275. 
Coal  resources  of  the  Kenova  quadrangle,  by  W.  C.  Phalen.  Bull.  No.  285,  1906, 
pp.  259-268. 
Geology  and  mineral  resources  of  part  of  the  Cumberland  Gap  coal  field,  Kentucky, 
by  G.  H.  Ashley  and  L.  C.  Glenn.     Prof.  Paper  No.  49,  1906.     239  pp. 
The  Elkhorn  coal  field,  Kentucky,  by  R.  W.  Stone.     Bull.  No.  316,  1907,  pp.  42-54. 
Coal  resources  of  the  Russell  Fork  basin  in  Kentucky  and  Virginia,  by  R.  W.  Stone. 
Bull.  No.  348,  1908.     127  pp. 
Economic  geology  of  the  Kenova  quadrangle,  Kentucky,  Ohio,  and  West  Virginia, 
by  W.  C.  Phalen.     Bull.  No.  349,  1908.     158  pp. 
MAINE. 
Rockland  folio,  Maine;  description,  by  E.  S.  Bastin.  Geologic  Atlas  U.  S.,  folio  158, 
1908,  p.  14. 
Peat  deposits  of  Maine,  by  E.  S.  Bastin  and  C.  A.  Davis.     Bull.  No.  376, 1909.     127  pp. 
MARYLAND. 
Piedmont  folio,  West  Virginia-Maryland;  description,  by  N.  H.  Darton  and  J.  A. 
Taff.     Geologic  Atlas  U.  S.,  folio  28,  1896. 
The  bituminous  coal  field  of  Maryland,  by  David  White.  Twenty-second  Ann. 
Rept.,  pt.  3,  1902,  pp.  201-214. 
Accident-Gran tsville  folio,  Maryland-Pennsylvania-West  Virginia;  description,  by 
G.  C.  Martin.     Geologic  Atlas  U.  S.,  folio  160,  1908,  pp.  11-13. 
MICHIGAN . 
The  northern  interior  coal  field,  by  A.  C.  Lane.  Twenty-second  Ann.  Rept.,  pt.  3, 
1902,  pp.  307-331. 
Ann  Arbor  folio, -Michigan;  description,  by  I.  C.  Russell  and  Frank  Leverett.  Ge- 
ologic Atlas  U.  S.,  folio  155,  1908,  pp.  8-9. 
MISSOURI. 
The  coal  measures  of  Missouri,  by  Arthur  Winslow.  Mineral  Resources  U.  S.  for 
1892,  1893,  pp.  429-436. 
The  western  interior  coal  field,  by  H.  F.  Bain.  Twenty-second  Ann.  Rept.,  pt.  3, 
1902,  pp.  333-366. 
An  account  of  the  coal  field  occupying  portions  of  Missouri,  Kansas, .Nebraska,  and  Iowa. 
Joplin  district  folio,  Missouri -Kansas;  description,  by  W.  S.  T.  Smith  and  C.  E. 
Siebenthal.     Geologic  Atlas  U.  S.,  folio  148,  1907,  pp.  19-20. 
MONTANA. 
The  Laramie  and  the  overlying  Livingston  formation  in  Montana,  by  W.  H.  Weed. 
Bull.  No.  105,  1893,  p.  105. 
A  brief  statement  regarding  the  occurrence  and  character  of  the  coal  beds. 
