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  By 
  referring 
  to 
  Table 
  I 
  it 
  will 
  be 
  seen 
  that 
  on 
  all 
  the 
  beds 
  

   in 
  Tangier 
  Sound, 
  from 
  Fishing 
  Bay 
  down 
  to 
  the 
  Great 
  Rock, 
  

   with 
  one 
  exception, 
  that 
  of 
  Chain 
  Shoal, 
  the 
  maximnm 
  ratio 
  

   is 
  that 
  of 
  the 
  second 
  class 
  to 
  the 
  first. 
  The 
  inference 
  is 
  that 
  

   there 
  was 
  a 
  successful 
  spatting 
  season 
  on 
  all 
  the 
  upper 
  beds 
  

   in 
  1876 
  or 
  1877, 
  probably 
  the 
  former. 
  

  

  Again, 
  the 
  minimum 
  ratio, 
  as 
  far 
  down 
  the 
  Sound 
  as 
  the 
  

   Mud 
  Rock, 
  is 
  that 
  of 
  the 
  third 
  class 
  to 
  the 
  second, 
  showing 
  

   that 
  on 
  the 
  beds 
  above 
  the 
  Mnd 
  Rock 
  there 
  was 
  not 
  a 
  suc- 
  

   cessful 
  attachment 
  in 
  1878, 
  which 
  was 
  the 
  case 
  as 
  attested 
  by 
  

   ourselves. 
  The 
  remaining 
  ratios 
  on 
  these 
  beds 
  show 
  that 
  

   there 
  has 
  been 
  some 
  attachment 
  during 
  the 
  present 
  season. 
  

  

  Leaving 
  the 
  Chain 
  Shoal 
  Bed 
  for 
  the 
  present, 
  the 
  minimum 
  

   ratio 
  on 
  all 
  the 
  remaining 
  beds 
  is 
  that 
  of 
  the 
  fourth 
  class 
  to 
  

   the 
  third, 
  showing 
  that 
  there 
  has 
  been 
  but 
  little 
  attachment 
  

   of 
  young 
  during 
  the 
  season 
  of 
  1879. 
  

  

  The 
  remaining 
  ratios 
  show 
  that 
  there 
  was 
  a 
  partial 
  attach- 
  

   ment 
  of 
  young 
  on 
  the 
  beds 
  between 
  Turtle 
  Egg 
  Island 
  Rock 
  

   and 
  the 
  Great 
  Rock 
  during 
  1878, 
  and 
  a 
  partial 
  attachment 
  

   on 
  the 
  remaining 
  beds 
  north 
  of 
  Jane's 
  Island 
  during 
  1876 
  or 
  

   1877, 
  while 
  there 
  was 
  a 
  successful 
  spatting 
  on 
  those 
  lower 
  

   beds 
  during 
  1878, 
  which 
  conclusion 
  was 
  found 
  to 
  be 
  correct 
  

   by 
  our 
  observations 
  during 
  that 
  season. 
  

  

  Arranging 
  these 
  deductions 
  in 
  tabular 
  form, 
  we 
  have 
  the 
  

   following 
  : 
  

  

  TABLE 
  showing 
  the 
  success 
  of 
  Spatting 
  in 
  different 
  Seasons 
  — 
  Tangier 
  Sound. 
  

  

  The 
  Chain 
  Shoal 
  diifers 
  from 
  the 
  beds 
  of 
  its 
  section, 
  the 
  

   upper, 
  in 
  having 
  its 
  successful 
  spatting 
  season 
  in 
  1878, 
  and 
  

   its 
  moderately 
  successful 
  one 
  in 
  1876 
  or 
  1877, 
  while 
  during 
  

  

  