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  reliable 
  but 
  the 
  velocity 
  iinniediately 
  south 
  of 
  the 
  bed 
  was 
  

   ■0.5 
  of 
  a 
  mile 
  per 
  hour. 
  

  

  The 
  currents 
  of 
  the 
  ISTanticoke 
  channel 
  and 
  over 
  the 
  adja- 
  

   <3ent 
  beds, 
  set 
  to 
  the 
  northward 
  and 
  eastward 
  on 
  the 
  flood, 
  

   following 
  the 
  bend 
  of 
  tlie 
  channel, 
  with 
  a 
  maximum 
  velocity 
  

   of 
  0.6 
  of 
  a 
  mile 
  per 
  hour. 
  

  

  The 
  ebb 
  over 
  the 
  major 
  portion 
  of 
  the 
  Middle 
  Ground 
  sets 
  

   to 
  the 
  southward, 
  with 
  a 
  velocity 
  of 
  0.3 
  to 
  0.4 
  of 
  a 
  mile 
  per 
  

   hour 
  on 
  the 
  first 
  quarter, 
  until 
  it 
  meets 
  the 
  current 
  of 
  the 
  AVi- 
  

   comico, 
  when 
  it 
  turns 
  to 
  the 
  westward. 
  

  

  A 
  strong 
  current 
  sets 
  in 
  and 
  out 
  of 
  Rock 
  Creek 
  ; 
  over 
  the 
  

   Drumming 
  Shoal 
  and 
  Cedar 
  Rocks, 
  the 
  current 
  sets 
  N. 
  N.E. 
  

   on 
  the 
  flood, 
  with 
  a 
  velocity 
  of 
  0.4 
  of 
  a 
  mile 
  per 
  hour 
  and 
  

   S. 
  S.W. 
  on 
  the 
  ebb 
  tide, 
  with 
  a 
  velocity 
  of 
  0.6 
  of 
  a 
  mile 
  per 
  

   hour. 
  

  

  Over 
  the 
  beds 
  south 
  of 
  the 
  Shark's 
  Fin 
  and 
  Cedar 
  Rock, 
  

   and 
  north 
  of 
  Piney 
  Island 
  Bar 
  and 
  Kedges 
  Straits, 
  the 
  gen- 
  

   -eral 
  set 
  of 
  the 
  flood 
  is 
  to 
  the 
  northward, 
  with 
  an 
  inclination 
  

   towards 
  Holland's 
  Straits, 
  when 
  about 
  Turtle 
  Egg 
  Island, 
  and 
  

   tending 
  to 
  the 
  northward 
  and 
  westward 
  oft" 
  the 
  Little 
  Thor- 
  

   oughfare. 
  The 
  general 
  set 
  of 
  the 
  ebb 
  while 
  in 
  the 
  channel 
  is 
  

   to 
  the 
  southward, 
  but 
  on 
  the 
  Turtle 
  Egg 
  Island, 
  Mud 
  and 
  

   Muscle 
  Hole 
  Rocks 
  the 
  set 
  is 
  to 
  the 
  soutliward 
  and 
  eastward. 
  

  

  The 
  strength 
  of 
  these 
  and 
  all 
  currents 
  in 
  the 
  Sound 
  is 
  much- 
  

   influenced 
  by 
  the 
  winds 
  that 
  have 
  prevailed 
  during 
  the 
  im- 
  

   mediately 
  preceding 
  days 
  and 
  which 
  it 
  was 
  impossible 
  to 
  

   ■eliminate 
  in 
  the 
  space 
  of 
  time 
  covered 
  by 
  this 
  investigation. 
  

  

  Over 
  the 
  western 
  beds, 
  above 
  Kedges 
  Straits, 
  the 
  maximum 
  

   observed 
  velocity 
  of 
  the 
  flood 
  was 
  0.8 
  of 
  a 
  mile 
  per 
  hour, 
  and 
  

   a 
  mean 
  of 
  all 
  the 
  velocities 
  of 
  the 
  flood 
  current 
  was 
  0.4 
  of 
  a 
  

   mile 
  per 
  hour. 
  

  

  The 
  maximum 
  observed 
  velocity 
  of 
  the 
  ebb 
  current 
  was 
  1.0 
  

   mile 
  per 
  hour, 
  and 
  the 
  mean 
  of 
  all 
  velocities 
  of 
  the 
  ebb 
  was 
  

   0.3 
  of 
  a 
  mile 
  per 
  hour. 
  

  

  Over 
  the 
  Chain 
  Shoal 
  the 
  maximum 
  velocity 
  of 
  the 
  flood 
  

   was 
  O.'iT, 
  and 
  the 
  mean 
  velocity 
  was 
  0.3 
  of 
  a 
  mile 
  per 
  hour. 
  

  

  The 
  maximum 
  velocity 
  of 
  the 
  ebb 
  was 
  1.0 
  mile 
  and 
  the 
  

   mean 
  velocity 
  0.5 
  of 
  a 
  mile 
  per 
  hour. 
  

  

  