﻿172 
  Scientific 
  Intelligence. 
  

  

  St. 
  Elias 
  range. 
  The 
  limestone 
  of 
  the 
  second 
  of 
  these 
  formations 
  

   was 
  found 
  to 
  be 
  fossiliferous, 
  and 
  to 
  afford 
  a 
  Pecten, 
  Mya 
  aren- 
  

   aria, 
  Mytilus 
  edulis, 
  Leda 
  fossa, 
  Macorna 
  incojispicua, 
  Cardium 
  

   Islandicum, 
  Litorina 
  Atkana 
  — 
  species 
  that 
  are 
  now 
  living, 
  accord- 
  

   ing 
  to 
  Dall, 
  in 
  the 
  cold 
  waters 
  of 
  the 
  region. 
  The 
  age 
  of 
  the 
  

   beds, 
  is 
  therefore, 
  as 
  stated, 
  " 
  Pliocene 
  or 
  early 
  Pleistocene." 
  The 
  

   Yakutat 
  beds 
  are 
  regarded 
  as 
  probably 
  younger 
  than 
  those 
  of 
  

   the 
  Pinnacle 
  system. 
  

  

  The 
  uplifts 
  of 
  the 
  region 
  producing 
  the 
  mountains, 
  including 
  

   St. 
  Elias, 
  are 
  consequently 
  referred 
  to 
  an 
  epoch 
  since 
  " 
  the 
  close 
  

   of 
  the 
  Tertiary." 
  In 
  the 
  view 
  of 
  Mr. 
  Russell 
  " 
  the 
  southern 
  face 
  

   of 
  Mt. 
  St. 
  Elias 
  is 
  a 
  fault-scarp. 
  The 
  mountain 
  itself 
  is 
  formed 
  

   by 
  the 
  upturned 
  edge 
  of 
  a 
  faulted 
  block 
  in 
  which 
  the 
  stratification 
  

   is 
  inclined 
  northeastward. 
  The 
  mountain 
  stands 
  at 
  the 
  intersection 
  

   of 
  two 
  lines 
  of 
  displacement, 
  one 
  trending 
  in 
  a 
  northeasterly 
  and 
  

   the 
  other 
  in 
  a 
  northwesterly 
  direction. 
  The 
  one 
  trending 
  north- 
  

   westward 
  extends 
  beyond 
  the 
  junction 
  with 
  the 
  northeasterly 
  fault. 
  

   The 
  point 
  of 
  union 
  is 
  at 
  the 
  pass 
  between 
  Mt. 
  St. 
  Elias 
  and 
  Mt. 
  

   Newton. 
  The 
  upturned 
  block, 
  bounded 
  on 
  the 
  southwest 
  by 
  a 
  

   great 
  fault, 
  projects 
  beyond 
  the 
  northeasterly 
  fault. 
  It 
  is 
  this 
  

   projecting 
  end 
  of 
  a 
  roof-like 
  block 
  that 
  forms 
  Mt. 
  St. 
  Elias." 
  

  

  This 
  view 
  of 
  the 
  mountain 
  is 
  before 
  the 
  future 
  investigator. 
  

   Another 
  view, 
  for 
  like 
  study, 
  is 
  the 
  possibility 
  that 
  St. 
  Elias 
  

   existed 
  in 
  essentially 
  its 
  present 
  form 
  before 
  the 
  Quaternary, 
  and 
  

   had 
  (along 
  with 
  the 
  country 
  about 
  it) 
  5000 
  or 
  more 
  feet 
  added 
  to 
  

   its 
  elevation 
  above 
  the 
  water-level 
  at 
  the 
  time 
  of 
  the 
  uplift 
  of 
  the 
  

   Quaternary 
  beds. 
  

  

  3. 
  Glacier 
  scratches 
  south 
  of 
  the 
  ''terminal 
  Moraine" 
  in 
  

   Western 
  Pennsylvania. 
  — 
  Messrs. 
  P. 
  M. 
  Foshay 
  and 
  R. 
  R. 
  Hice, 
  

  

  in 
  a 
  paper 
  in 
  the 
  2d 
  volume 
  of 
  the 
  Bulletin 
  of 
  the 
  Geological 
  

   Society 
  of 
  America 
  (p. 
  467), 
  describe 
  and 
  figure 
  glacial 
  scratches 
  

   observed 
  by 
  them 
  on 
  the 
  western 
  bluff 
  of 
  the 
  rock 
  gorge 
  of 
  

   the 
  Beaver, 
  near 
  the 
  mouth 
  of 
  the 
  Connoquenessig, 
  " 
  two 
  miles 
  

   or 
  more 
  south" 
  of 
  the 
  " 
  terminal 
  moraine" 
  as 
  located 
  by 
  Lewis 
  

   and 
  Wright. 
  Some 
  of 
  the 
  grooves 
  are 
  5 
  feet 
  wide 
  and 
  18 
  inches 
  

   deep. 
  The 
  authors 
  remark 
  that 
  the 
  grooves 
  may 
  be 
  within 
  "the 
  

   fringe" 
  of 
  scattered 
  erratics 
  south 
  of 
  the 
  line 
  of 
  the 
  moraine, 
  de- 
  

   scribed 
  by 
  Lewis, 
  but 
  observe 
  that 
  they 
  are 
  as 
  much 
  glacier- 
  

   made 
  as 
  those 
  of 
  Kelly 
  Island 
  in 
  Lake 
  Erie. 
  For 
  an 
  article 
  by 
  

   Mr. 
  Foshay 
  on 
  the 
  pot-holes 
  and 
  pre-Glacial 
  drainage 
  of 
  the 
  same 
  

   region, 
  with 
  a 
  map, 
  see 
  vol. 
  xl 
  of 
  this 
  Journal, 
  p. 
  397, 
  1890. 
  

  

  4. 
  Losses 
  of 
  Cape 
  Cod 
  by 
  sea-encroachment. 
  — 
  In 
  the 
  U. 
  S. 
  

   Coast 
  and 
  Geodetic 
  Report 
  for 
  1889, 
  H. 
  L. 
  Marindin, 
  Assistant, 
  

   gives 
  details 
  with 
  regard 
  to 
  the 
  losses 
  of 
  Cape 
  Cod. 
  In 
  the 
  

   southern 
  section, 
  6 
  miles 
  long, 
  the 
  crest-line 
  of 
  the 
  beach 
  has 
  

   receded 
  in 
  19 
  years 
  at 
  the 
  rate 
  of 
  8 
  feet 
  a 
  year. 
  In 
  a 
  middle 
  

   section 
  of 
  4 
  miles, 
  the 
  shore-line 
  has 
  receded 
  8 
  feet 
  in 
  31 
  years. 
  

   In 
  the 
  northern 
  section 
  of 
  14 
  miles 
  (from 
  the 
  Nausett 
  Three 
  

   Lights 
  to 
  the 
  Highland 
  Light 
  in 
  Truro) 
  the 
  mean 
  recession 
  is 
  3-2 
  

   feet 
  per 
  year; 
  and 
  it 
  indicates 
  a 
  removal 
  in 
  40 
  years 
  of 
  30,231,- 
  

  

  