548  PRE-CAMBRIAN    GEOLOGY   OF    NORTH    AMERICA. 
To  the  west  and  southwest  of  Hudson  Bay  the  "  Laurentian  "  are 
again  in  much  larger  area  than  the  "  Huronian  "  rocks.  A  series 
similar  to  the  Keweenawan  copper-bearing  series  of  the  Lake  Superior 
region,  called  the  Athabaska  sandstone  and  mapped  as  "  Cambrian," 
has  been  reported  by  Tyrrell,  Dowling,  and  McConnell  as  overlying 
the  "  Laurentian  "  and  "  Huronian  "  rocks  near  Athabaska  Lake,  and 
westward  from  Baker  Lake,  which  lies  to  the  west  of  Chesterfield 
Inlet.  "  Cambrian  "  rocks  have  also  been  reported  both  northwest 
and  southeast  from  north  of  Nelson  River  on  the  southwest  side  of 
Hudson  Bay  and  east  of  Great  Bear  and  Great  Slave  lakes. 
NOTES. 
1  Notice  relative  to  the  geology  of  the  coast  of  Labrador,  by  Rev.  Mr.  Stein- 
hauer.     Trans.  Geol.   Soc,  vol.  2,  1814. 
2  Geological  appendix,  by  Doctor  McCulloch.  A  voyage  of  discovery,  for  the 
purpose  of  exploring  Baffins  Bay,  etc.,  by  Sir  John  Ross,  in  1818,  vol.  2,  London, 
1819,  p.  141. 
3  Appendix  I,  by  J.  Richardson.  Narrative  of  a  journey  to  the  shores  of  the 
Polar  Sea  in  the  years  1819-1822,  by  Capt.  J.  Franklin.  London,  1823,  pp. 
520-534. 
4  Journal  of  a  second  voyage  for  the  discovery  of  a  Northwest  Passage,  etc., 
1S21-1823,  by  Captain  Parry.     London,  1824. 
5  Notes  on  rock  specimens,  by  Charles  Koning.  Supplement  to  the  Appendix 
to  Captain  Parry's  voyage  for  the  discovery  of  a  Northwest  Passage  in  the 
years  1819-20  (natural  history).     London,  1824,  p.  ccxlvii. 
6  A  brief  account  of  an  unsuccessful  attempt  to  reach  Repulse  Bay,  etc.,  by 
Capt.  G.  F.  Lyon.     London,  1825,  pp.  51,  88. 
7  Appendix  on  geology  of  countries  discovered  during  Captain  Parry's  second 
and  third  expeditions,  by  Professor  Jameson.  Journal  of  a  third  voyage  for 
the  discovery  of  a  Northwest  Passage,  etc.,  by  Capt.  W.  E.  Parry.  London  and 
Philadelphia,   1826. 
8  Appendix  I,  by  J.  Richardson.  Narrative  of  a  second  expedition  to  the 
shores  of  the  Polar  Sea  in  the  years  1825-1827,  by  Capt.  J.  Franklin.  London, 
1828. 
9  Narrative  of  discovery  and  adventure  in  the  polar  seas  and  regions,  by  Sir 
John  Leslie,  Professor  Jameson,  and  Hugh  Murray.     Edinburgh,  1830. 
10  Appendix  on  geology.  Narrative  of  a  second  voyage  in  search  of  a  North- 
west Passage,  etc.,  1829-1833,  by  Sir  John  Ross.     London,  1835. 
11  Geological  notice  on  the  new  country  passed  over  in  Captain  Back's  expe- 
dition, by  W.  H.  Fitton.  Narrative  of  the  Arctic  land  expedition  to  the  mouth 
of  the  Great  Fish  River  and  along  the  shores  of  the  Arctic  Ocean,  in  the  years 
1833,  1834,  1835,  by  Captain  Back,  Appendix  4.     London  and  Philadelphia,  1836. 
12  Narrative  of  an  expedition  in  H.  M.  S.  Terror,  1836-37,  by  Captain  Back. 
London,  1838. 
13  Notes  on  the  geology  of  the  north  coast  of  the  St.  Lawrence,  by  Captain 
Bayfield.     Trans.  Geol.  Soc,  London,  2d  ser.,  vol.  5,  1840,  pp.  89-102. 
"Narrative  of  the  discoveries  on  the  north  coast  of  America,  etc.,  1836-1839, 
by  Thomas  Simpson.     London,  1843. 
15  On  the  geology  of  portions  of  Lower  Canada,  both  north  and  south  of  the 
St.  Lawrence,  by  W.  E.  Logan.  Rept.  Prog.  Geol.  Survey  Canada,  1849-50, 
pp.  8-10. 
