254  BIBLIOGRAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Nutter  (Edward  Hoit). 
1.  Sketch  of  the  geology  of  the  Salinas  Valley,  California. 
Jour.  Geol.,  vol.  9,  pp.  330-336,  8  figs.,  1901. 
Describes  the  formation  of  the  valley  and  the  character  and  occurrence  of  the  Tertiary  strata 
which  were  laid  down  in  this  trough. 
Nutter  (Edward  Hoit)  and  Barber  (William  B.). 
1.  On  some  glaucophane  and  associated  schists  in  the  Coast  Ranges  of  California. 
Jour.  Geol.,  vol.  10,  pp.  738-714,  1902. 
Describes  the  occurrence  and  contact  relations  of  the  schists  and  discusses  their  origin. 
Nylander  (Olof  0.). 
1.  Shells  of  the  marl  deposits  of  Aroostook  County,  Maine,  as  compared  with  the 
living  forms  in  the  same  locality. 
Nautilus,  vol.  11,  pp.  101-101,  1901. 
Gives  list  of  fossils  determined. 
O. 
Obalski  (J.). 
1.  Notes  on  the  magnetic  iron  sand  of  the  north  shore  of  the  St.  Lawrence  [Canada]. 
Can.  Mg.  Rev.,  vol.  20,  pp.  31-37,  1  fig.,  1901;  Can.  Mg.  Inst,  Jour.,  vol.  4,  pp.  91-98,  1  fig.,  1901. 
Gives  chemical  analyses  of  the  sand  and  describes  its  distribution. 
2.  On  a  mineral  containing  radium  in  the  Province  of  Quebec. 
Can.  Mg.  Rev.,  vol.  23,  pp.  11  1-116,  1904;   Eng.  &  Mg.  Jour.,  vol.  77,  p.  441,  1904;  Can.  Mg.  Inst. 
Jour.,  vol.  7,  pp.  245-256,  8  figs.,  L905. 
Describes  the  occurrence  and  characters  of  a  mineral,  cleveite,  containing  radium. 
O'Brien  (Charles  J.). 
1.  Igneous  rocks:  How  to  identify  them. 
Mg.  &  Sci.  Press,  vol.  87,  p.  50,  L903. 
O'Brien  (M.  E.). 
1.  Geology  of  the  district  west  of  Redding,  Cal. 
Mg.  &  Sci.  Press,  vol.  86,  p.  319,  1903. 
Describes  the  character  and  occurrence  of  the  ruck  formations  and  ore  deposits. 
Ochsenius  (Carl). 
1.  Natiirlicher  Koks  in  den  Santa  Clara-Kohlenfeldern,  Sonora,  Mexiko. 
Zeitsch.  fur  prak.  Geol.,  Jahrg.  1900,  p.  21,  1900. 
Describes  an  occurrence  of  natural  coke. 
2.  Natronsal peter  in  California. 
Zeitsch.  fur  prak.  Geol.,  Jahrg.  1902,  heft.  L0,  pp.  337-339,  1902. 
Gives  a  general  account  of  deposits  of  nitrate  of  soda. 
Ogilvie  (Ida  H.). 
1.  Glacial  phenomena  in  the  Adirondacks  and  Champlain  Valley. 
Jour.  Geol.,  vol.  10,  pp.  397-412,  1  pi.,  1902;  Columbia  Univ.,  Geol.  Dept.j  Contrib.,  vol.  10. 
no.  84,  1902. 
Describes  the  strife,  character  of  ice  movement  and  glacial  deposits  of  the  region,  and  discusses 
the  erosion  history  of  the  Adirondacks.     Includes  table  of  strife. 
2.  An  analcite-bearing  camptonite  from  New  Mexico. 
Jour.  Geol.,  vol.  10,  pp.  500-507,  1  figs,  1902;  Columbia  Univ.,  Geol.  Dept.,  Contrib.,  vol.  10, 
no.  85,  1902. 
Describes  the  general  geology  of  the  region  and  the  occurrence  and  character  of  the  campto- 
nite and  compares  with  rocks  of  similar  composition  from  other  regions. 
3.  Geological  notes  on  the  vicinity  of  Banff,  Alberta. 
Jour.  Geo!.,  vol.  12,  pp.  408-411,  4  figs.,  1904. 
Describes  the  general  geology  and  the  character  and  origin  of  physiographic  features  of  this 
region. 
4.  The  effect  of  superglacial  debris  on   the  advance  and  retreat  of  some  Canadian 
glaciers. 
Jour.  Geol.,  vol.  12,  pp.  722-743,  11  tigs.,  1904. 
