vanhisb.]  LAKE    SUPERIOR    REGION.  201 
30 Geology  of  Ontario  with  special  reference  to  economic  minerals.  Robert  Bell. 
Report  of  the  Royal  Commission  on  the  Mineral  Resources  of  Ontario,  Toronto, 
1890,  pp.  1-70. 
40Lake  Superior  Stratigraphy,  Andrew  C.  Lawson.  Am.  Geol.,  vol.  vn,  1891, 
pp.  320-327. 
41  The  Structural  Geology  of  Steep  Rock  Lake,  Ontario,  Henry  Lloyd  Smyth.  Am. 
Jour.  Sci.,  3d  ser.,  vol.  xoi,  1891,  pp.  317-331. 
42  Narrative  Journal  of  Travels  through  the  Northwestern  Regions  of  the  United 
States,  extending  from  Detroit  through  the  Great  Chain  of  American  Lakes  to  the 
Sources  of  the  Mississippi  River,  Henry  R.  Schoolcraft.  Albany,  1821 ;  pp.  419  with 
map. 
43  Account  of  a  Journey  to  the  Coteau  des  Prairies,  with  a  description  of  the  Red 
Pipe  Stone  Quarry  and  Granite  Bowlders  found  there,  George  Catlin.  Am.  Jour.  Sci., 
1st  ser.,  vol.  xxxviii,  pp.  138-146. 
44  Geology  of  Porter's  Island  and  Copper  Harbor,  John  Locke.  Trans.  Am.  Phil. 
Soc,  vol.  ix,  1844,  pp.  311-312 ;  with  maps. 
45  Report  of  Walter  Cunningham,  late  Mineral  Agent  on  Lake  Superior,  January  8, 
1845.     Senate  Docs.,  2d  sess.  28th  Cong.,  1844-'45,  vol.  vn,  No.  98,  pp.  5 
46  Mineral  Report,  George  N.  Sanders.     Ibid.,  No.  117,  pp.  3-9. 
47  Report  of  J.  B.  Campbell.     Ibid.,  vol.  XI,  No.  175,  pp.  4-8. 
48  Report  of  George  N.  Sanders.     Ibid.,  pp.  8-14. 
49  Report  of  A.  B.  Gray.     Ibid.,  pp.  15-22. 
60  Report  of  A.  B.  Gray  on  Mineral  Lands  of  Lake  Superior.  Executive  Docs.,  1st 
Bess.  29th  Cong.,  1845-'46,  vol.  vn,  No.  211,  pp.  23 ;  with  map. 
51  Mineralogy  and  Geology  of  Lake  Superior,  H.  D.  Rogers.  Proc.  Bost.  Soc.  Nat. 
Hist.,  vol.  ii,  1846,  pp.  124-125. 
62  Preliminary  Report,  containing  Outlines  of  the  Progress  of  the  Geological  Survey 
of  Wisconsin  and  Iowa,  up  to  October  11, 1847,  David  Dale  Owen.  Senate  Docs.,  1st 
sess.  30th  Cong.,  1847,  vol.  n,  No.  2,  pp.  160-174. 
53  Report  of  Observations  made  in  the  Survey  of  the  Upper  Peninsula  of  Michigan, 
John  Locke.     Ibid.,  pp.  183-199. 
64  Report  of  J.  D.  Whitney.     Ibid.,  pp.  221-230. 
65  Report  of  a  Geological  Reconnaissance  of  the  Chippewa  Land  District  of  Wiscon- 
sin, etc.,  David  D.  Owen.     Ibid.,  vol.  vn,  No.  57,  pp.  72. 
™  Report  of  J.  G.  Norwood.     Ibid.,  pp.  73-134. 
67  On  the  Origin  of  the  Actual  Outlines  of  Lake  Superior  (Discussion),  William  B. 
Rogers.     Proc.  Am.  Assoc.  Adv.  Sci.,  1848,  1st  meeting,  pp.  79-80. 
68  Report  of  T  D.  Whitney.  Senate  Docs.,  2d  sess.  30th  Cong.,  1848-'49,  vol,  II,  No. 
2,  pp.  154-159; 
6y 
Report  of,   ,  W.  Foster,     Ibid.,  pp.  159-163. 
e°On  the  Gf. ,  dogical  Structure  of  Keweenaw  Point,  Charles  T.  Jackson.     Proc.  Am. 
Assoc.  Adv.£ci.,  1849,  2d  meeting,  pp.  288-301. 
61  The  Lake  Superior  Copper  and  Iron  District,  J.  D.  Whitney.  Proc.  Bost.  Soc. 
Nat.  Hist.,  vol.  in,  1849,  pp.  210-212. 
62  The  Outlines  of  Lake  Superior,  Louis  Agassiz.  Lake  Superior :  Its  Physical  Char- 
acter, Vegetation,  and  Animals,  compared  with  those  of  other  and  similar  regions, 
by  Louis  Agassiz  and  J.  Elliott  Cabot,  pp.  417-426.  See,  also,  Proc.  Am.  Assoc.  Adv. 
Sci.,  1848,  1st  meeting,  p.  79. 
63  Report  on  the  Geological  and  Mineralogical  Survey  of  the  Mineral  Lands  of  the 
United  States  in  the  State  of  Micbigan,  Charles  T.  Jackson.  Senate  Docs.,  1st  sess. 
3lst  Cong.,  1849-'50,  vol.  in,  No.  1,  pp.  371-935;  with  14  maps.  Contains  reports  by 
Messrs.  Jackson,  Dickenson,  Mclntyre,  Barnes,  Locke,  Foster  and  Whitney,  Whitney, 
Gibbs,  Whitney,  Jr.,  Hill  and  Foster,  Foster,  Burt,  Hubbard. 
64  Ibid.,  pp.  371-503. 
66  United  States  Geological  Survey  of  Public  Lands  in  Michigan.  Field  Notes,  John 
Locke.     Ibid.,  pp.  572-587. 
