﻿A 
  JAS. 
  J. 
  SIMPSON— 
  ENTOMOLOGICAL 
  

  

  Lastly, 
  a 
  short 
  discussion 
  on 
  the 
  climate 
  and 
  rainfall, 
  and 
  its 
  bearing 
  on 
  the 
  

   subject 
  in 
  hand, 
  has 
  been 
  given, 
  for, 
  as 
  has 
  a 
  ready 
  been 
  pointed 
  out, 
  temperature, 
  

   length 
  and 
  duration 
  of 
  the 
  wet 
  and 
  dry 
  seasons 
  respectively, 
  rainfall 
  and 
  humidity, 
  

   are 
  all 
  factors 
  in 
  determining 
  the 
  occurrence 
  of 
  the 
  different 
  species 
  of 
  blood-sucking 
  

   insects. 
  

  

  A 
  map 
  of 
  the 
  Colony 
  is 
  appended, 
  and 
  on 
  it 
  are 
  shown 
  (1) 
  the 
  extent 
  and 
  areas 
  

   covered 
  by 
  the 
  various 
  types 
  of 
  vegetation, 
  (2) 
  the 
  route 
  followed 
  by 
  the 
  author, 
  

   (3) 
  the 
  localities 
  in 
  which 
  the 
  different 
  species 
  of 
  Glossina 
  were 
  found, 
  and 
  (4) 
  the 
  

   distribution 
  of 
  sleeping-sickness. 
  A 
  number 
  of 
  towns 
  and 
  villages 
  not 
  shown 
  on 
  

   the 
  original 
  map. 
  but 
  referred 
  to 
  in 
  the 
  narrative, 
  have 
  been 
  added 
  in 
  red. 
  

  

  The 
  general 
  narrative 
  follows 
  the 
  order 
  in 
  which 
  the 
  country 
  was 
  traversed 
  by 
  the 
  

   author. 
  Since 
  one 
  of 
  the 
  chief 
  aims 
  in 
  this 
  survey 
  was 
  the 
  visiting 
  of 
  as 
  many 
  

   European 
  stations 
  as 
  possible, 
  the 
  main 
  roads 
  were 
  for 
  the 
  most 
  part 
  followed 
  ; 
  but 
  

   at 
  certain 
  places 
  deviations 
  were 
  made 
  in 
  order 
  to 
  enquire 
  into 
  special 
  points 
  

   suggested 
  by 
  information 
  received 
  from 
  various 
  officials. 
  It 
  will 
  be 
  seen 
  from 
  the 
  

   map 
  that 
  the 
  great 
  majority 
  of 
  records 
  are 
  in 
  the 
  region 
  traversed 
  by 
  the 
  author 
  ; 
  

   some 
  of 
  these, 
  however, 
  are 
  based 
  on 
  observations 
  made 
  by 
  others. 
  But 
  the 
  most 
  

   obvious 
  feature 
  is 
  the 
  abnormally 
  small 
  number 
  of 
  records 
  from 
  districts 
  not 
  on 
  the 
  

   main 
  line 
  of 
  communication, 
  showing 
  how 
  very 
  little 
  is 
  known 
  ol' 
  the 
  detailed 
  

   distribution 
  of 
  any 
  species, 
  the 
  local 
  factors 
  influencing 
  it, 
  and 
  its 
  significance. 
  

   Surely 
  this 
  opens 
  up 
  a 
  line 
  of 
  investigation 
  which 
  would 
  be 
  fraught 
  with 
  useful 
  

   results. 
  

  

  A 
  systematic 
  list 
  of 
  the 
  blood-sucking 
  insects 
  and 
  other 
  arthropods 
  so 
  far 
  

   obtained 
  in 
  the 
  Gold 
  Coast 
  is 
  given 
  as 
  a 
  guide 
  to 
  the 
  species 
  which 
  may 
  be 
  

   expected, 
  and, 
  in 
  the 
  narrative 
  itself, 
  their 
  local 
  distribution 
  is 
  shown 
  in 
  some 
  

   detail. 
  

  

  A 
  few 
  notes 
  on 
  the 
  various 
  diseases 
  caused 
  by 
  blood-sucking 
  insects, 
  in 
  man 
  and 
  

   other 
  animals 
  have 
  been 
  appended, 
  and 
  their 
  distribution 
  and 
  prevalence 
  discussed. 
  

  

  The 
  general 
  distribution 
  of 
  the 
  various 
  species 
  of 
  Glossina, 
  and 
  the 
  factors 
  which 
  

   influence 
  it, 
  has 
  also 
  called 
  for 
  attention, 
  but 
  it 
  must 
  be 
  remembered 
  that 
  this 
  

   subject 
  can 
  be 
  discussed 
  only 
  in 
  very 
  general 
  terms, 
  owing 
  to 
  our 
  scanty 
  

   knowledge 
  of 
  local 
  prevalence. 
  

  

  Following 
  up 
  the 
  introduction 
  to 
  the 
  study 
  of 
  the 
  parasites 
  of 
  mammals, 
  

   birds, 
  etc., 
  started 
  in 
  my 
  Report 
  on 
  Sierra 
  Leone, 
  I 
  have 
  collected 
  together 
  in 
  a 
  

   separate 
  chapter 
  certain 
  records 
  obtained 
  during 
  my 
  seven 
  months' 
  tour 
  in 
  the 
  

   Gold 
  Coast. 
  This 
  is 
  a 
  subject 
  which 
  is 
  of 
  more 
  than 
  passing 
  interest, 
  and 
  one 
  which 
  

   has 
  not 
  hitherto 
  been 
  sufficiently 
  studied, 
  owing 
  in 
  great 
  part 
  to 
  the 
  difficulty 
  in 
  

   obtaining 
  specimens 
  of 
  the 
  various 
  types 
  of 
  game, 
  &c. 
  

  

  It 
  cannot 
  be 
  too 
  strongly 
  emphasised 
  that 
  this 
  report 
  must 
  be 
  taken 
  in 
  

   conjunction 
  with 
  the 
  previous 
  four, 
  where 
  many 
  matters 
  of 
  general 
  interest 
  and 
  

   application 
  were 
  discussed. 
  After 
  a 
  more 
  extended 
  examination 
  of 
  West 
  Africa 
  

   I 
  do 
  not 
  feel 
  called 
  upon 
  to 
  withdraw 
  or 
  modify 
  any 
  of 
  the 
  inferences 
  there 
  deduced 
  

   or 
  any 
  of 
  the 
  recommendations 
  there 
  suggested, 
  but 
  on 
  the 
  other 
  hand 
  more 
  

   strongly 
  urge 
  their 
  adoption 
  and 
  extension 
  in 
  the 
  Gold 
  Coast. 
  

  

  