﻿A. 
  M. 
  Edwards 
  — 
  Infusorial 
  Earths 
  of 
  Pacific 
  Coast. 
  381 
  

  

  * 
  6. 
  56. 
  Near 
  Monterey, 
  Cal. 
  

  

  * 
  7. 
  53. 
  Pit 
  River, 
  Lower 
  Canon. 
  Cal. 
  

  

  * 
  8. 
  54. 
  Pit 
  River, 
  Lower 
  California. 
  

  

  * 
  9. 
  60. 
  Monterey, 
  Cal. 
  

  

  * 
  10. 
  5*7. 
  Monterey, 
  Cal. 
  

  

  * 
  11. 
  58. 
  San 
  Francisco, 
  Cal. 
  

  

  * 
  12. 
  54. 
  Pit 
  River, 
  above 
  Lower 
  Canon, 
  Cal. 
  

  

  * 
  13. 
  Dalles 
  of 
  the 
  Columbia, 
  Oregon. 
  

  

  * 
  14. 
  28. 
  San 
  Diego, 
  Cal. 
  

  

  * 
  15. 
  9. 
  San 
  Pablo 
  Bay, 
  Cal. 
  

  

  16. 
  516. 
  Black 
  Canon, 
  Colorado 
  River, 
  Cal. 
  

  

  17. 
  506. 
  " 
  White 
  Rock," 
  Colorado 
  River, 
  Cal. 
  

  

  18. 
  519. 
  "White 
  Rock," 
  Colorado 
  River, 
  Cal. 
  

   10. 
  496. 
  " 
  White 
  Rock," 
  Colorado 
  River, 
  Cal. 
  

  

  * 
  20. 
  17. 
  Monterey, 
  Cal. 
  

  

  * 
  21. 
  24. 
  Monterey, 
  Cal. 
  

  

  22. 
  155. 
  Psucseeque 
  Creek, 
  Oregon. 
  

  

  * 
  23. 
  Monterey, 
  Cal. 
  

  

  ? 
  24. 
  907. 
  [Smithsonian 
  Catalogue.] 
  

  

  * 
  25. 
  San 
  Joaquin 
  Valley, 
  Cal. 
  

  

  I 
  have 
  indicated 
  the 
  geographical 
  position 
  of 
  the 
  localities 
  

   in 
  this 
  list, 
  as 
  far 
  as 
  known, 
  in 
  the 
  same 
  manner 
  as 
  employed 
  

   in 
  the 
  preceding 
  catalogue, 
  that 
  is 
  to 
  say, 
  those 
  marked 
  with 
  a 
  

   star 
  (*) 
  are 
  from 
  the 
  western 
  side 
  of 
  the 
  mountains, 
  while 
  the 
  

   others, 
  with 
  the 
  exception 
  of 
  No. 
  1, 
  20, 
  which 
  is 
  from 
  the 
  gap 
  

   between 
  the 
  Sierra 
  Nevada 
  where 
  it 
  joins 
  the 
  Cascade, 
  which 
  

   is 
  a 
  portion 
  of 
  the 
  Coast 
  Range, 
  are 
  from 
  the 
  east 
  of 
  the 
  slope. 
  

  

  1. 
  26. 
  Shores 
  of 
  Lower 
  Klamath 
  Lake, 
  borders 
  of 
  Oregon 
  

   and 
  California. 
  

  

  The 
  position 
  of 
  the 
  bed 
  from 
  which 
  this 
  specimen 
  was 
  taken 
  

   and 
  its 
  relation 
  to 
  the 
  overlying 
  trap 
  will 
  be 
  understood 
  from 
  

   what 
  Dr. 
  Newberry 
  has 
  said 
  in 
  his 
  report 
  on 
  the 
  geology 
  of 
  

   this 
  section 
  of 
  country. 
  (P. 
  R. 
  R. 
  Report, 
  vol. 
  vi, 
  part 
  

   II, 
  Geology, 
  pp. 
  37 
  and 
  38.) 
  It 
  is 
  sub-Plutonic. 
  

  

  Cyclotella 
  rotula. 
  Epithema 
  granulata. 
  Orthosira 
  orichalcea. 
  

   Pinnularia 
  viridis. 
  

  

  * 
  2. 
  23. 
  Monterey, 
  Cal. 
  

  

  Of 
  this 
  as 
  well 
  as 
  those 
  numbered 
  No. 
  3, 
  4, 
  6, 
  9, 
  11, 
  14, 
  15, 
  

   21, 
  23, 
  and 
  25, 
  I 
  will 
  speak 
  hereafter 
  together, 
  as 
  they 
  all 
  

   came 
  from 
  the 
  same 
  strata 
  of 
  the 
  Miocene 
  Tertiary. 
  

  

  * 
  5. 
  55. 
  Pit 
  River 
  Valley, 
  Cal. 
  

  

  Prom 
  a 
  sub-Plutonic 
  deposit. 
  On 
  the 
  banks 
  of 
  the 
  Pit 
  

   River 
  these 
  so-called 
  " 
  infusorial 
  marls 
  " 
  present 
  a 
  very 
  strik- 
  

   ingly 
  peculiar 
  appearance 
  and 
  often 
  modify 
  very 
  greatly 
  the 
  

   character 
  of 
  this 
  whole 
  tract 
  of 
  country. 
  Dr. 
  Newberry 
  

   (p. 
  32) 
  has 
  pointed 
  out 
  the 
  characters 
  of 
  this 
  district 
  and, 
  in 
  

  

  