﻿C. 
  1). 
  Walcott 
  — 
  Lower 
  Cambrian 
  Rocks 
  in 
  California. 
  141 
  

  

  B. 
  range, 
  52 
  to 
  92 
  fatli., 
  Gulf 
  of 
  Maine. 
  Allied 
  species 
  are 
  

   found 
  in 
  nearly 
  all 
  seas. 
  

  

  Tremaster 
  mirabilis 
  Yerrill. 
  

  

  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  vol. 
  ii, 
  p. 
  201, 
  1879; 
  Expl. 
  by 
  the 
  Albatross 
  in 
  1883, 
  

   pi. 
  18, 
  fig. 
  51, 
  1885. 
  

  

  B. 
  range, 
  150 
  to 
  250 
  fath., 
  rare. 
  Known 
  only 
  from 
  the 
  

   Banks 
  off 
  Eova 
  Scotia 
  and 
  Newfoundland, 
  from 
  N. 
  lat. 
  47° 
  6' 
  

   to 
  near 
  George's 
  Bank. 
  All 
  the 
  specimens 
  have 
  been 
  received 
  

   from 
  the 
  Gloucester 
  fishermen. 
  

  

  No 
  other 
  species 
  of 
  this 
  remarkable 
  genus 
  is 
  known. 
  

  

  [To 
  be 
  continued.] 
  

  

  Art. 
  XIY. 
  — 
  Lower 
  Cambrian 
  Rocks 
  in 
  Eastern 
  California 
  / 
  

   By 
  Chas. 
  D. 
  Walcott. 
  

  

  [Read 
  before 
  G-eol. 
  Soc. 
  America, 
  Baltimore 
  meeting, 
  Dec. 
  27, 
  1894.] 
  

  

  The 
  only 
  Lower 
  Cambrian 
  rocks 
  of 
  California 
  known 
  to 
  

   me 
  occur 
  in 
  the 
  White 
  Mountain 
  range 
  of 
  Inyo 
  County, 
  

   east 
  of 
  Owen's 
  Yalley, 
  with 
  the 
  single 
  exception 
  of 
  one 
  small 
  

   mass 
  west 
  of 
  Big 
  Pine, 
  which 
  is 
  in 
  the 
  foothills 
  of 
  the 
  Sierra 
  

   Nevada. 
  That 
  portion 
  of 
  the 
  White 
  Mountain 
  range 
  lying 
  

   near 
  the 
  Waucobi 
  Canyon 
  is 
  commonly 
  referred 
  to 
  as 
  the 
  

   "White 
  Mountain 
  range," 
  while 
  the 
  portion 
  to 
  the 
  south 
  is 
  

   called 
  the 
  " 
  Inyo 
  range." 
  Prof. 
  J. 
  D. 
  Whitney 
  refers 
  to 
  the 
  

   ranges 
  (Inyo 
  and 
  White 
  Mountain), 
  stating 
  that 
  little 
  is 
  known 
  

   of 
  the 
  geology 
  except 
  that, 
  from 
  Bend 
  City 
  for 
  twenty-five 
  

   miles 
  north, 
  their 
  western 
  base 
  and 
  slope 
  seem 
  to 
  be 
  made 
  of 
  

   slate 
  and 
  other 
  stratified 
  rocks 
  generally 
  dipping 
  to 
  the 
  south- 
  

   west 
  and 
  often 
  much 
  contorted. 
  These 
  slates 
  are 
  said 
  to 
  alter- 
  

   nate 
  with 
  beds 
  of 
  limestone. 
  In 
  these 
  rocks 
  a 
  single 
  fossil 
  was 
  

   discovered, 
  opposite 
  Camp 
  Independence, 
  by 
  Dr. 
  Horn. 
  This 
  

   species 
  was 
  considered 
  by 
  Mr. 
  Gabb 
  as 
  identical 
  with 
  a 
  Triassic 
  

   species 
  which 
  had 
  been 
  found 
  in 
  the 
  Upper 
  Trias 
  of 
  the 
  Alps. 
  

   From 
  this 
  Professor 
  Whitney 
  identified 
  the 
  strata 
  along 
  the 
  

   western 
  flanks 
  of 
  the 
  Inyo 
  and 
  White 
  Mountains 
  with 
  the 
  

   rocks 
  of 
  Washoe, 
  which 
  were 
  referred 
  to 
  the 
  Trias.* 
  

  

  On 
  a 
  map 
  issued 
  by 
  the 
  California* 
  State 
  Mining 
  Bureau 
  in 
  

   1891, 
  f 
  eight 
  areas 
  of 
  limestone 
  are 
  indicated 
  on 
  the 
  line 
  of 
  the 
  

   White 
  Mountain 
  and 
  Inyo 
  ranges. 
  Some 
  of 
  these 
  are 
  described 
  

   in 
  the 
  report 
  of 
  the 
  State 
  Mineralogist 
  for 
  18884 
  In 
  his 
  report 
  

  

  * 
  Geol. 
  Surv. 
  California; 
  Geology, 
  vol. 
  i, 
  1865, 
  p. 
  459. 
  

  

  f 
  Preliminary 
  Mineralogical 
  and 
  Geological 
  Map 
  of 
  the 
  State 
  of 
  California, 
  

   1891. 
  

  

  ^California 
  State 
  Mining 
  Bureau; 
  Eighth 
  Ann. 
  Rep. 
  State 
  Mineralogist 
  for 
  

   1888. 
  

  

  