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  PROCEEDINGS 
  OF 
  THE 
  CALIFORNIA 
  

  

  Regular 
  Meeting, 
  December 
  7th, 
  1874. 
  

   Vice 
  President 
  in 
  the 
  Chair. 
  

  

  Forty-seven 
  members 
  present. 
  

  

  Donations 
  to 
  the 
  Museum: 
  Dr. 
  Hudson 
  presented 
  four 
  fossils 
  

   fron 
  Grayson, 
  Stanislaus 
  County. 
  Dr. 
  J. 
  G. 
  Cooper 
  presented 
  

   specimens 
  of 
  Crustacea 
  from 
  Monterey. 
  The 
  Alaska 
  Commer- 
  

   cial 
  Company 
  presented 
  a 
  number 
  of 
  shells 
  from 
  Unalashka. 
  W. 
  

   G. 
  Blunt 
  presented 
  a 
  collection 
  of 
  eggs 
  of 
  California 
  and 
  European 
  

   birds. 
  Wm. 
  Russell 
  donated 
  specimens 
  of 
  pyrites 
  of 
  iron, 
  found 
  in 
  

   a 
  piece 
  of 
  West 
  Hartley 
  coal. 
  R. 
  H. 
  Floyd 
  presented 
  fossil 
  

   bones 
  found 
  in 
  an 
  ancient 
  river 
  bed, 
  500 
  feet 
  below 
  the 
  surface, 
  in 
  

   the 
  blue 
  gravel 
  mines 
  of 
  Placer 
  County. 
  

  

  J. 
  R. 
  Scowden 
  and 
  Horatio 
  Stone 
  were 
  proposed 
  as 
  candidates 
  

   for 
  resident 
  membership. 
  

  

  Note 
  on 
  Tertiary 
  Formation 
  of 
  California. 
  

  

  BY 
  J.'g. 
  cooper, 
  M. 
  D. 
  

  

  Since 
  making 
  the 
  remarks 
  on 
  the 
  coal 
  and 
  tertiary 
  formations 
  of 
  California, 
  

   I 
  have 
  obtained 
  the 
  new 
  edition 
  (1874) 
  of 
  Dana's 
  " 
  Manual 
  of 
  Geology." 
  The 
  

   learned 
  professor, 
  acknowledged 
  leader 
  of 
  American 
  geologists, 
  goes 
  even 
  fur- 
  

   ther 
  than 
  1 
  do 
  in 
  bringing 
  down 
  the 
  age 
  of 
  our 
  Mt. 
  Diablo 
  coal 
  strata 
  in 
  the 
  

   scale 
  of 
  geological 
  time, 
  for 
  he 
  considers 
  them 
  as 
  belonging 
  to 
  the 
  lignite 
  era 
  

   of 
  the 
  eocene, 
  as 
  well 
  as 
  that 
  of 
  the 
  Rocky 
  Mountains. 
  Although 
  in 
  both 
  

   cases 
  there 
  are 
  some 
  cretaceous 
  fossils 
  found 
  in 
  or 
  above 
  it, 
  he 
  considers 
  the 
  

   presence 
  of 
  lignite 
  as 
  more 
  important, 
  especially 
  as 
  showing 
  the 
  existence 
  of 
  a 
  

   decidedly 
  tertiary 
  vegetation. 
  He 
  believes 
  that 
  the 
  cretaceous 
  mollusca 
  con- 
  

   tinued 
  down 
  into 
  the 
  eocene 
  epoch, 
  there 
  having 
  been 
  no 
  important 
  convulsion 
  

   to 
  destroy 
  them 
  until 
  the 
  middle 
  of 
  the 
  eocene 
  on 
  this 
  side 
  of 
  the 
  continent. 
  

   This 
  is 
  a 
  confirmation 
  of 
  my 
  statement 
  that 
  there 
  is 
  here 
  a 
  " 
  bridging 
  over 
  " 
  of 
  

   the 
  gap 
  between 
  the 
  two 
  formations 
  so 
  marked 
  on 
  the 
  Atlantic 
  shores. 
  

  

  