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  PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  ]MEETING 
  

  

  Barium 
  Carbonate. 
  The 
  poison 
  is 
  tasteless 
  and 
  pale 
  coloured. 
  When 
  

   it 
  is 
  taken 
  in, 
  it 
  causes 
  much 
  thirst 
  to 
  the 
  victim. 
  

  

  The 
  flour 
  pills 
  were 
  tried, 
  but 
  they 
  did 
  not 
  give 
  good 
  results. 
  Sub- 
  

   sequently 
  the 
  poison 
  was 
  poured 
  over 
  suitable 
  grain 
  as 
  in 
  the 
  case 
  of 
  

   previous 
  poisons. 
  As 
  in 
  the 
  case 
  of 
  plaster, 
  one 
  pound 
  of 
  posion 
  and 
  

   one 
  seer 
  of 
  sugar 
  were 
  utilized 
  for 
  15 
  seers 
  of 
  gram. 
  

  

  Some 
  sixty 
  per 
  cent, 
  of 
  the 
  treated 
  burrows 
  remained 
  closed 
  and 
  

   the 
  cost 
  was 
  the 
  same 
  as 
  with 
  plaster, 
  one 
  anna 
  for 
  15 
  burrows. 
  

  

  Fumigation. 
  

  

  Fumes 
  of 
  SO., 
  (Sulphur 
  dioxide) 
  were 
  introduced 
  into 
  rats' 
  burrows 
  

   by 
  means 
  of 
  the 
  Ant-exterminator 
  machine. 
  The 
  nozzle 
  of 
  the 
  delivery- 
  

   tube 
  was 
  put 
  in 
  the 
  main 
  entrance 
  while 
  the 
  other 
  inlets 
  communicating 
  

   with 
  the 
  burrow 
  were 
  previously 
  closed 
  with 
  earth. 
  The 
  gas 
  was 
  pumped 
  

   in 
  for 
  three 
  or 
  four 
  minutes 
  and 
  the 
  mouth 
  of 
  the 
  burrows 
  was 
  then 
  closed. 
  

  

  Some 
  75 
  of 
  the 
  treated 
  burrows 
  remained 
  closed 
  next 
  morning, 
  but 
  

   after 
  two 
  or 
  three 
  days 
  some 
  of 
  the 
  burrows 
  (six 
  per 
  cent.) 
  were 
  reopened. 
  

   This 
  means 
  there 
  was 
  no 
  thorough 
  fumigation 
  in 
  these 
  particular 
  cases. 
  

  

  Carbon 
  bisulphide 
  was 
  tried 
  in 
  a 
  few 
  cases, 
  and 
  was 
  found 
  very 
  satis- 
  

   factory. 
  As 
  it 
  is 
  unsafe 
  for 
  the 
  Zamindars 
  to 
  use 
  it, 
  detailed 
  observa- 
  

   tions 
  on 
  its 
  efficacy 
  were 
  postponed 
  for 
  the 
  present. 
  

  

  With 
  regard 
  to 
  the 
  use 
  of 
  any 
  poison, 
  it 
  may 
  be 
  emphasized 
  that 
  

   nothing 
  is 
  possible 
  without 
  organization. 
  Like 
  other 
  countries, 
  we 
  should 
  

   arrange 
  for 
  campaigns 
  on 
  extensive 
  scales 
  and 
  for 
  this 
  co-operation 
  

   amongst 
  the 
  people 
  themselves, 
  and 
  the 
  people 
  and 
  the 
  employees 
  of 
  

   the 
  State, 
  is 
  essential. 
  It 
  will 
  not 
  serve 
  any 
  purpose 
  to 
  kill 
  rats 
  in 
  a 
  

   field 
  or 
  so. 
  The 
  work 
  of 
  extermination 
  should 
  be 
  done 
  on 
  large 
  areas 
  

   at 
  the 
  same 
  time 
  and 
  in 
  an 
  organized 
  manner. 
  District 
  authorities 
  

   should 
  take 
  an 
  interest. 
  It 
  should 
  be 
  arranged 
  somewhat 
  like 
  this. 
  A 
  

   Tahsil 
  should 
  form 
  the 
  unit 
  of 
  organization. 
  Three 
  days, 
  say 
  the 
  1st, 
  

   2nd 
  and 
  3rd 
  of 
  every 
  month, 
  should 
  be 
  set 
  apart 
  as 
  rat-days. 
  In 
  every 
  

   village 
  on 
  the 
  1st 
  all 
  the 
  zamindars 
  should 
  close 
  the 
  rat 
  burrows 
  present 
  

   in 
  their 
  fields, 
  and 
  the 
  poisoned 
  bait 
  may 
  be 
  prepared 
  at 
  one 
  place, 
  under 
  

   the 
  supervision 
  of 
  the 
  head 
  lamhardar, 
  or 
  a 
  member 
  of 
  the 
  Municipal 
  

   Committee. 
  On 
  the 
  2nd, 
  the 
  bait 
  may 
  be 
  carried 
  in 
  carts 
  in 
  all 
  the 
  

   different 
  directions 
  and 
  the 
  zamindars 
  should 
  lay 
  the 
  bait 
  in 
  and 
  subse- 
  

   quently 
  close 
  the 
  burrows 
  that 
  have 
  reopened 
  in 
  their 
  fields. 
  On 
  the 
  

   early 
  morning 
  before 
  sunrise 
  of 
  the 
  3rd, 
  they 
  should 
  go 
  to 
  the 
  fields 
  and 
  

   collect 
  and 
  bury 
  or 
  burn 
  the 
  dead 
  rats 
  that 
  have 
  died 
  outside 
  their 
  homes. 
  

   As 
  is 
  evident, 
  on 
  all 
  the 
  three 
  days, 
  the 
  rat 
  work 
  will 
  take 
  a 
  few 
  hours 
  

   only, 
  but 
  this 
  few 
  hours 
  organized 
  work 
  on 
  three 
  days 
  in 
  a 
  month 
  is 
  sure 
  

   to 
  exterminate 
  the 
  pest. 
  It 
  may 
  be 
  repeated 
  once 
  more 
  that 
  the 
  

  

  