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  AGRICULTURE. 
  

  

  No 
  additional 
  power 
  or 
  efficiency 
  can 
  be 
  attained 
  by 
  

   the 
  enlargement 
  or 
  lengthening 
  of 
  the 
  rollers, 
  and 
  it 
  is 
  

   only 
  by 
  multiplying 
  the 
  stands 
  or 
  pairs 
  of 
  rollers, 
  each 
  

   requiring 
  its 
  attendants, 
  but 
  simultaneously 
  put 
  in 
  mo- 
  

   tion 
  by 
  some 
  efficient 
  power 
  acting 
  upon 
  the 
  whole, 
  that 
  

   they 
  have 
  been 
  rendered 
  at 
  all 
  adequate 
  to 
  the 
  demands 
  

   of 
  even 
  moderate 
  plantations. 
  

  

  The 
  adaptation 
  of 
  these 
  stands 
  to 
  a 
  common 
  power, 
  by 
  

   means 
  of 
  an 
  extended 
  cylinder 
  or 
  drum 
  with 
  which 
  they 
  

   were 
  connected 
  by 
  bands 
  is 
  attributed 
  to 
  Mr. 
  Longstreet, 
  

   a 
  merchant 
  of 
  Augusta, 
  Georgia, 
  the 
  father 
  of 
  Judge 
  

   Longstreet, 
  the 
  President 
  of 
  the 
  University 
  of 
  Missis- 
  

   sippi 
  ; 
  and 
  was 
  introduced 
  about 
  1792. 
  

  

  The 
  roller 
  gin 
  is 
  only 
  adapted 
  to 
  the 
  Sea 
  Island 
  and 
  

   naked 
  seed 
  varieties 
  of 
  cotton. 
  

  

  The 
  upland 
  Georgia 
  cotton 
  required' 
  the 
  preparatory 
  

   process 
  of 
  hoicing, 
  in 
  the 
  manner 
  that 
  hatters 
  prepare 
  

   their 
  felt. 
  Hence 
  the 
  hoiced 
  cotton, 
  formerly 
  known 
  in 
  

   commerce. 
  

  

  Short 
  as 
  the 
  rollers 
  are, 
  with 
  the 
  accelerated 
  velocity 
  

   given 
  by 
  the 
  combined 
  machinery 
  and 
  horse 
  power, 
  they 
  

   are 
  very 
  liable 
  to 
  become 
  sprung, 
  and 
  to 
  admit 
  the 
  seed 
  

   or 
  any 
  foreign 
  substance 
  that 
  may 
  be 
  in 
  the 
  cotton. 
  

  

  A 
  single 
  seed 
  so 
  taken 
  in 
  will 
  instantly 
  scorch 
  a 
  

   notch 
  in 
  the 
  rollers, 
  and 
  render 
  them 
  unfit 
  for 
  further 
  

   use. 
  Great 
  pains 
  is 
  therefore 
  required 
  in 
  picking 
  over 
  

   the 
  cotton 
  and 
  rendering 
  it 
  perfectly 
  clean 
  before 
  gin- 
  

   ning. 
  

  

  The 
  liability 
  of 
  igniting 
  the 
  lint 
  or 
  fibre 
  by 
  friction 
  

   from 
  this 
  cause 
  renders 
  it 
  necessarj'- 
  to 
  employ 
  the 
  most 
  

   cautious 
  and 
  expert 
  hands 
  in 
  attendance 
  upon 
  the 
  rollers, 
  

   and 
  to 
  keep 
  vessels 
  of 
  water 
  constantly 
  at 
  hand 
  to 
  guard 
  

   ao-ainst 
  such 
  casualties. 
  

  

  