LAKE    SUPERIOR   REGION.  395 
174  The  stratigraphic  position  of  the  Ogishke  conglomerate  of  northeastern  Min- 
nesota, by  U.  S.  Grant.    Am.  Geologist,  vol.  10,  1892,  pp.  4-10. 
175  Paleozoic  formations  of  southeastern  Minnesota,  by  C.  W.  Hall  and  F.  W. 
Sardeson.    Bull.  Geol.  Soc.  America,  vol.  3,  1892,  pp.  331-368. 
179  The  basic  massive  rocks  of  the  Lake  Superior  region,  by  W.  S.  Bayley. 
Jour.  Geology,  vol.  1,  1893,  pp.  433-456,  587-596,  688-716 ;  vol.  2,  1894,  pp.  814- 
825 ;  vol.  3,  1895.  pp.  1-20. 
177  The  crystalline  rocks,  by  N.  H.  Winchell.  Twentieth  Ann.  Kept.  Geol.  and 
Nat.  Hist.  Survey  Minnesota,  for  1891,  1893,  pp.  1-28. 
17s  Anorthosites  of  the  Minnesota  shore  of  Lake  Superior,  by  A.  C.  Lawson. 
Bull.  Geol.  and  Nat.  Hist.  Survey  Minnesota  No.  8,  1893,  pp.  1-23. 
179  The  geology  of  Kekequabic  Lake,  in  northeastern  Minnesota,  with  special 
reference  to  an  augite-soda  granite,  by  U.  S.  Grant ;  thesis  accepted  for  degree 
of  Ph.  D.  in  Johns  Hopkins  University,  1893.  Twenty-first  Ann.  Kept.  Geol.  and 
Nat.  Hist.  Survey  Minnesota,  for  1892,  1893,  pp.  5-58.  With  geological  map  and 
plates. 
180  The  eruptive  and  sedimentary  rocks  on  Pigeon  Point,  Minnesota,  and  their 
contact  phenomena,  by  W.  S.  Bayley.  Bull.  U.  S.  Geol.  Survey  No.  109,  1893, 
with  maps  and  plates. 
181  Field  observations  on  certain  granitic  areas  in  northeastern  Minnesota,  by 
U.  S.  Grant.  Twentieth  Ann.  Kept.  Geol.  and  Nat.  Hist.  Survey  Minnesota, 
1893,  pp.  35-110. 
182  Sketch  of  the  coastal  topography  of  the  north  side  of  Lake  Superior,  with 
special  reference  to  the  abandoned  strands  of  Lake  Warren,  by  A.  C.  Lawson. 
Twentieth  Ann.  Rept.  Geol.  and  Nat.  Hist.  Survey  Minnesota,  1893,  pp.  181-289. 
183  Actinolite-magnetite  schists  from  the  Mesabi  iron  range,  in  northeastern 
Minnesota,  by  W.  S.  Bayley.    Am.  Jour.  Sci.,  3d  ser.,  vol.  46,  1893,  pp.  176-1S0. 
184  The  Mesabi  iron  range,  by  H.  V.  Winchell.  Twentieth  Ann.  Rept.  Minne- 
sota Geol.  Survey,  for  1891,  1893,  pp.  111-180. 
185  Preliminary  report  of  field  work  during  1893  in  northeastern  Minnesota,  by 
TJ.  S.  Grant.  Twenty-second  Ann.  Rept.  Geol.  and  Nat.  Hist.  Survey  Minnesota, 
pt.  4,  1894,  pp.  67-78. 
186  Notes  on  the  geology  of  Itasca  County,  Minn.,  by  G.  E.  Culver.  Twenty- 
second  Ann.  Rept.  Geol.  and  Nat.  Hist.  Survey  Minnesota,  pt.  8,  1894,  pp.  97-114. 
187  Preliminary  report  of  field  work  during  1893  in  northeastern  Minnesota, 
by  A.  H.  Elftman.  Twenty-second  Ann.  Rept.  Geol.  and  Nat.  Hist.  Surrey  Min- 
nesota, pt.  12,  1894,  pp.  141-180. 
188  The  stratigraphic  position  of  the  Thompson  slates,  by  J.  E.  Spurr.  Am. 
Jour.  Sci.,  3d  ser.,  vol.  48,  1894,  pp.  159-165. 
189  rpj^  iron-kearing  rocks  of  the  Mesabi  range  in  Minnesota,  by  J.  Edward 
Spurr.  Bull.  Geol.  and  Nat.  Hist.  Survey  Minnesota  No.  10,  1894,  pp.  268,  with 
geological  maps. 
190  The  origin  of  the  Archean  greenstones,  by  N.  H.  Winchell.  Twenty-third 
Ann.  Rept.  Geol.  and  Nat.  Hist.  Survey  Minnesota,  for  1894,  1895,  pt.  2,  pp.  4-35. 
191  Preliminary  report  on  the  Rainy  Lake  gold  region,  by  H.  V.  AVinchell  and 
U.  S.  Grant.  Twenty-third  Ann.  Rept.  Geol.  and  Nat.  Hist.  Survey  Minnesota, 
for  1894,  1895,  pt.  2,  pp.  36-105. 
192  The  iron  ranges  of  Minnesota,  by  H.  V.  Winchell.  Proc.  Lake  Superior 
Mining  Inst.,  vol.  3,  1895,  pp.  11-32. 
193  Notes  upon  the  bedded  and  banded  structures  of  the  gabbro  and  upon  an 
area  of  troctolyte,  by  A.  H.  Elftman.  Twenty-third  Ann.  Rept.  Geol.  and  Nat. 
Hist.  Survey  Minnesota,  for  1894,  1895,  pt.  12,  pp.  224-230. 
