PUBLICATIONS    ON    IKON    AND    MANGANESE.  239 
Smith,  E.  A.  The  iron  ores  of  Alabama  in  their  geological  relations.  In  Mineral 
Resources  U.  S.  for  1882,  pp.  149-161.     1883. 
Smith,  Geo.  0.,  and  Willis,  B.  The  Clealum  iron  ores,  Washington.  In  Trans. 
Am.  Inst,  Min.  Eng.,  vol.  30,  pp.  356-366.     1901. 
Spencer,  A.  C.  The  iron  ores  of  Santiago,  Cuba.  In  Eng.  and  Min.  Jour.,  vol. 
72,  pp.  633-634.     1901. 
Manganese  deposits  of  Santiago,  Cuba.     In  Bulletin  U.  S.  Geol.  Survey 
No.  213,  pp.  251-255.     1903. 
Swank,  J.  M.  The  American  iron  industry  from  its  beginning  in  1619  to  1886. 
In  Mineral  Resources  U.  S.  for  1886,  pp.  23-38.     1887. 
Iron  and  steel  and  allied  industries  in  all  countries.     In  Sixteenth  Ann. 
Rept.  U.  S.  Geol.  Survey,  pt.  3,  pp.  219-250.     1894. 
Van  Hlse,  C.  R.,  Bayley,  W.  S.,  and  Smyth,  H.  L.  The  Marquette  iron-bearing 
district  of  Michigan,  with  atlas.  Monograph  XXVIII,  U.  S.  Geol.  Survey,  608  pp. 
1897. 
Van  Hise,  C.  R.  The  iron-ore  deposits  of  the  Lake  Superior  region.  In  Twenty- 
first  Ann.  Rept,  U.  S.  Geol.  Survey,  pt.  3,  pp.  305-434.     1901. 
Weeks,  J.  D.     Manganese.     In  Mineral  Resources  U.  S.  for  1885,  pp.  303-356.     1886. 
Manganese.     In  Mineral  Resources  U.  S.  for  1887,  pp.  144-167.     1888. 
Manganese.     In  Mineral  Resources  U.  S.  for  1892,  pp.  169-226.     1893. 
Wolff,  J.  E.  Zinc  and  manganese  deposits  of  Franklin  Furnace,  N.  J.  In  Bul- 
letin U.  S.  Geol.  Survey  No.  213,  pp.  214-217.     1903. 
Yale,  C.  G.  Iron  on  the  Pacific  coast.  In  Mineral  Resources  U.  S.  for  1883-84, 
pp.  286-290.     1885. 
In  addition  to  the  papers  listed  above,  iron  deposits  of  more  or  less 
importance  have  been  described  in  the  following  geologic  folios  (for 
location  and  further  details  see  pp.  13-16):  Nos.  2,  4,  5,  6, 8,  10, 11,  12, 
1-1,  18,  10,  20,  21,  22,  21,  25,  28,  32,  33,  35,  36,  37,  40,  43,  14,  55,  56, 
59,  61,  &2,  64,  70,  72,  78,  82,  83,  84. 
