﻿Hay 
  — 
  Ages 
  of 
  Pleistocene 
  Deposits. 
  369 
  

  

  the 
  wide 
  dispersion 
  of 
  the 
  Unionidse 
  since 
  that 
  relatively 
  

   late 
  time. 
  Furthermore, 
  if 
  those 
  horses, 
  belonging 
  

   apparently 
  to 
  Equus 
  leidyi 
  and 
  E. 
  complicatus, 
  lived 
  

   at 
  Fish 
  House 
  during 
  the 
  prevalence 
  of 
  the 
  last 
  ice 
  sheet, 
  

   both 
  of 
  these 
  species 
  must 
  have 
  occupied 
  a 
  widely 
  

   extended 
  region 
  west 
  and 
  south 
  of 
  the 
  Wisconsin 
  moraine. 
  

   To 
  this 
  same 
  late 
  time 
  would 
  naturally 
  be 
  referred 
  the 
  

   horses 
  found 
  at 
  Navesink 
  and 
  Swedesboro, 
  N. 
  J., 
  those 
  

   found 
  along 
  the 
  Potomac 
  at 
  Washington; 
  and 
  those 
  

   found 
  at 
  the 
  various 
  localities 
  in 
  the 
  Carolinas. 
  In 
  such 
  

   case 
  what 
  need 
  is 
  there 
  to 
  suppose 
  that 
  Florida 
  furnished 
  

   them 
  and 
  their 
  contemporaries 
  a 
  last 
  asylum 
  ? 
  Why, 
  too, 
  

   after 
  the 
  close 
  of 
  the 
  Wisconsin 
  stage 
  should 
  these 
  horses 
  

   have 
  migrated 
  to 
  Florida 
  and 
  not 
  to 
  the 
  grazing 
  lands 
  

   which 
  stretched 
  from 
  Hudson 
  river 
  to 
  the 
  Great 
  Plains 
  ? 
  

  

  If 
  the 
  numerous 
  species 
  found 
  at 
  Vero, 
  at 
  Charleston, 
  

   and 
  Brunswick, 
  and 
  the 
  horses 
  found 
  farther 
  north 
  are 
  to 
  

   be 
  assigned 
  to 
  the 
  latest 
  stages 
  of 
  the 
  Pleistocene 
  there 
  

   appears 
  to 
  the 
  writer 
  no 
  good 
  reason 
  why 
  the 
  same 
  dis- 
  

   position 
  should 
  not 
  be 
  made 
  of 
  the 
  numerous 
  species 
  of 
  

   mammals, 
  the 
  great 
  majority 
  of 
  which 
  are 
  extinct, 
  which 
  

   have 
  been 
  gathered 
  in 
  the 
  Port 
  Kennedy 
  cave, 
  above 
  

   Philadelphia. 
  It 
  seems 
  to 
  the 
  writer 
  that 
  this 
  assembly 
  

   of 
  species 
  is 
  satisfactorily 
  connected 
  up 
  with 
  those 
  of 
  

   South 
  Carolina 
  and 
  Florida; 
  and 
  according 
  to 
  the 
  

   writer's 
  views, 
  they 
  all 
  belong 
  to 
  about 
  the 
  time 
  of 
  the 
  

   first 
  interglacial 
  stage. 
  

  

  This 
  conclusion 
  means, 
  of 
  course, 
  that 
  the 
  formations 
  

   known 
  as 
  the 
  Sunderland, 
  the 
  Wicomico, 
  and 
  much 
  that 
  

   goes 
  under 
  the 
  name 
  of 
  Talbot, 
  and 
  their 
  geologic 
  equiva- 
  

   lents 
  of 
  whatever 
  names, 
  were 
  laid 
  down 
  during 
  the 
  time 
  

   of 
  the 
  first 
  interglacial 
  and 
  perhaps 
  of 
  the 
  Kansan 
  stages. 
  

  

  Salisbury 
  and 
  Knapp 
  refer 
  the 
  Cape 
  May 
  to 
  the 
  Wis- 
  

   consin 
  epoch, 
  and 
  the 
  writer 
  knows 
  of 
  no 
  reason 
  for 
  ques- 
  

   tioning 
  this 
  conclusion; 
  also, 
  as 
  they 
  say, 
  the 
  southern 
  

   part 
  of 
  the 
  State 
  may 
  at 
  the 
  time 
  of 
  its 
  deposition 
  have 
  

   been 
  submerged 
  to 
  the 
  extent 
  of 
  from 
  30 
  to 
  50 
  feet. 
  At 
  

   very 
  shallow 
  depths 
  at 
  Long 
  Branch 
  and 
  Manasquan 
  

   inlet, 
  have 
  been 
  found 
  remains 
  of 
  mastodons 
  ; 
  but 
  these 
  

   could 
  hardly 
  have 
  lived 
  there 
  during 
  the 
  submergence. 
  

   Fairchild 
  10 
  is 
  probably 
  correct 
  in 
  representing 
  this 
  part 
  

   of 
  the 
  coast 
  of 
  New 
  Jersey 
  as 
  being 
  submerged 
  while 
  the 
  

   glacial 
  front 
  was 
  occupying 
  northern 
  New 
  Jersey 
  and 
  

  

  10 
  Bull. 
  Geol. 
  Soc. 
  Amer., 
  vol. 
  28, 
  pi. 
  XT. 
  

  

  