﻿OYSTER 
  INDUSTRY 
  OF 
  NORTH 
  CAROLINA. 
  

  

  337 
  

  

  sor 
  Verrill 
  mentions 
  occur 
  at 
  Mar8halls])urg-, 
  N. 
  C, 
  and 
  there 
  thi,s 
  

   kind 
  of 
  oyster 
  shell 
  is 
  extremely 
  abundant. 
  The 
  same 
  type 
  of 
  shell, 
  

   commonly 
  known 
  as 
  the 
  " 
  razor 
  blade," 
  is 
  also 
  found, 
  sometimes 
  with 
  

   the 
  animal 
  still 
  alive, 
  on 
  the 
  shores 
  of 
  the 
  Newport 
  River 
  marshes. 
  

  

  III. 
  — 
  To 
  ascertain 
  icJiether 
  the 
  recuperative 
  jiower 
  of 
  elongated 
  oi/i<tri's 
  

   varies 
  icith 
  tlieir 
  age. 
  

  

  Experiment 
  II 
  clearly 
  demonstrates 
  the 
  fact 
  that 
  oj'sters 
  grown 
  

   under 
  oppressive 
  conditions 
  are 
  capable 
  of 
  changing- 
  in 
  shape 
  and 
  

   assuming 
  ultimately 
  a 
  form 
  normal 
  for 
  their 
  age. 
  It 
  is 
  desirable, 
  

   however, 
  to 
  know 
  how 
  late 
  in 
  life 
  an 
  oyster 
  is 
  still 
  able 
  to 
  take 
  advan- 
  

   tage 
  of 
  new 
  opportunities, 
  and 
  for 
  this 
  purpose 
  the 
  following 
  experi- 
  

   ment 
  was 
  made: 
  

  

  Ninet}^ 
  oysters 
  were 
  liberated 
  from 
  the 
  most 
  oppressive 
  surroundings 
  

   and 
  were 
  divided 
  roughly, 
  according 
  to 
  length, 
  into 
  three 
  lots 
  — 
  (A) 
  con- 
  

   taining 
  all 
  sizes 
  up 
  to 
  and 
  slightlj^ 
  over 
  an 
  inch, 
  (B) 
  sizes 
  between 
  1 
  and 
  2 
  

   inches, 
  and 
  (C) 
  all 
  measuring 
  3 
  inches 
  or 
  more 
  in 
  length. 
  These 
  three 
  

   lots 
  were 
  measured, 
  as 
  in 
  experiment 
  II, 
  and 
  then 
  placed 
  in 
  separate 
  

   galvanized 
  iron 
  wire 
  cages 
  which 
  were 
  suspended 
  horizontally 
  under 
  

   the 
  wharf, 
  as 
  in 
  the 
  former 
  experiment. 
  They 
  were 
  placed 
  in 
  the 
  

   water 
  on 
  September 
  5, 
  1902, 
  and 
  removed 
  on 
  November 
  5. 
  Tha 
  

   measurements 
  were 
  as 
  follows: 
  

  

  F. 
  C. 
  1903 
  22 
  

  

  