﻿318 
  C. 
  F. 
  M. 
  SWYNNERTON. 
  

  

  I 
  was 
  especially 
  anxious, 
  with 
  a 
  view 
  to 
  future 
  policy, 
  to 
  gain 
  a 
  first-hand 
  knowledge 
  

   of 
  the 
  probable 
  relationship 
  of 
  the 
  game 
  to 
  such 
  an 
  outbreak. 
  Therefore, 
  having 
  

   consulted 
  the 
  Acting 
  Principal 
  Medical 
  Officer, 
  and 
  having 
  ascertained 
  that 
  from 
  his 
  

   point 
  of 
  view 
  also, 
  and 
  Dr. 
  Maclean's, 
  my 
  visit 
  would 
  be 
  regarded 
  as 
  useful 
  and 
  welcome, 
  

   I 
  proceeded 
  to 
  Mwanza 
  at 
  the 
  beginning 
  of 
  May, 
  by 
  car 
  and 
  on 
  foot 
  from 
  Tabora 
  

   to 
  Smith's 
  Sound, 
  and 
  thence 
  by 
  dhow. 
  I 
  found 
  the 
  Senior 
  Commissioner, 
  Mr. 
  A. 
  M. 
  D. 
  

   Turnbull, 
  already 
  considering 
  the 
  feasibility 
  of 
  wholesale 
  evacuation 
  and 
  other 
  

   important 
  administrative 
  measures 
  which 
  I 
  shall 
  describe. 
  He 
  accompanied 
  me 
  during 
  

   the 
  greater 
  part 
  of 
  this 
  investigation, 
  and 
  I 
  was 
  indebted 
  to 
  him 
  everywhere 
  for 
  

   assistance 
  that 
  was 
  invaluable. 
  

  

  We 
  first 
  sailed 
  up 
  the 
  Speke 
  Gulf 
  with 
  a 
  view 
  to 
  examining 
  the 
  coast 
  

   and 
  the 
  possibility 
  of 
  a 
  connection, 
  original 
  or 
  still 
  existing, 
  between 
  G. 
  palpalis 
  

   and 
  the 
  outbreak. 
  We 
  then 
  canoed 
  up 
  the 
  lower 
  reaches 
  of 
  the 
  Simiyu 
  River 
  

   (PI. 
  xiv, 
  fig. 
  2), 
  again 
  with 
  the 
  latter 
  object, 
  and, 
  entering 
  the 
  fly-infested 
  woodland 
  

   two 
  miles 
  from 
  Nyalikungu 
  and 
  (later) 
  crossing 
  the 
  Simiyu, 
  travelled 
  between 
  that 
  

   river 
  and 
  the 
  Duma 
  to 
  Zagayu. 
  We 
  crossed 
  thence 
  northwards 
  to 
  Luguru, 
  the 
  

   headquarters 
  of 
  Sultan 
  Mwanilanga 
  of 
  Itilima, 
  and 
  returned 
  to 
  the 
  lake 
  coast 
  through 
  

   Maswa 
  (the 
  Ntusu 
  capital), 
  Ngasamo 
  and 
  Nasa. 
  At 
  Nasa 
  we 
  separated. 
  This 
  

   route 
  had 
  covered, 
  very 
  roughly, 
  the 
  piece 
  of 
  country 
  in 
  which 
  cases 
  were 
  known 
  to 
  

   exist. 
  Halts 
  of 
  from 
  one 
  to 
  five 
  days 
  were 
  made 
  for 
  the 
  purposes 
  of 
  investigation. 
  

  

  Dr. 
  Maclean 
  and 
  Mr. 
  P. 
  E. 
  Tully, 
  the 
  Stock 
  Inspector, 
  joined 
  us 
  at 
  Zagayu, 
  from 
  

   which 
  centre 
  Mr. 
  Tully 
  had 
  been 
  working 
  a 
  number 
  of 
  my 
  bait-cattle 
  and 
  fly-boys 
  

   pending 
  our 
  arrival. 
  I 
  am 
  much 
  indebted 
  to 
  him 
  also 
  for 
  the 
  supervision, 
  later, 
  

   of 
  experimental 
  clearing 
  designed 
  to 
  ascertain 
  the 
  width 
  necessary 
  to 
  render 
  a 
  road 
  

   safe 
  for 
  traffic, 
  for 
  the 
  marking 
  of 
  flies, 
  and 
  for 
  other 
  help, 
  without 
  which, 
  in 
  the 
  

   short 
  time 
  at 
  my 
  disposal, 
  I 
  could 
  not 
  have 
  attempted 
  such 
  work. 
  

  

  Finally, 
  leaving 
  Nasa 
  on 
  different 
  dates, 
  Dr. 
  Maclean 
  and 
  I 
  travelled 
  separately 
  

   to 
  Ikisu 
  — 
  where 
  we 
  met 
  and 
  he 
  took 
  over 
  from 
  me 
  my 
  side 
  of 
  the 
  investigation. 
  

   Thence 
  he 
  went 
  to 
  Ikoma 
  and 
  the 
  old 
  palpalis 
  area 
  of 
  the 
  Mara, 
  and 
  I 
  to 
  Musoma, 
  

   afterwards 
  proceeding 
  to 
  Kisumu, 
  Entebbe 
  and 
  Nairobi. 
  

  

  There 
  was 
  no 
  lack 
  of 
  assistance. 
  I 
  have 
  already 
  mentioned 
  Mr. 
  Tully. 
  Major 
  

   L. 
  G. 
  Murray, 
  M.C., 
  commanding 
  the 
  2nd 
  Battalion, 
  King's 
  African 
  Rifles, 
  in 
  Tabora, 
  

   offered 
  me 
  the 
  services 
  of 
  Lieut. 
  Moore, 
  V.C., 
  a 
  keen 
  amateur 
  entomologist 
  who 
  was 
  

   anxious 
  to 
  help, 
  and 
  whose 
  temporary 
  seconding 
  to 
  tsetse 
  work 
  had 
  previously 
  been 
  

   approved 
  by 
  H.E. 
  the 
  Acting 
  Governor. 
  The 
  Medical 
  Officer 
  and 
  I 
  felt 
  that 
  he 
  would 
  be 
  

   most 
  usefully 
  employed 
  in 
  combining 
  entomological 
  work 
  with 
  a 
  search 
  for 
  sleeping 
  

   sickness 
  cases 
  in 
  the 
  direction 
  of 
  the 
  points 
  — 
  such 
  as 
  Seke 
  and 
  Uzinza 
  — 
  the 
  infection 
  

   of 
  which 
  would 
  be 
  most 
  disastrous, 
  but 
  from 
  which 
  infection 
  had 
  not 
  been 
  reported. 
  

   The 
  Assistant 
  Political 
  Officers 
  of 
  Musoma 
  and 
  Mwanza 
  (Mr. 
  O. 
  Guise-Williams 
  and 
  

   Capt. 
  G. 
  H. 
  R. 
  St. 
  J. 
  Owen, 
  and 
  Mr. 
  G. 
  F. 
  Webster) 
  were 
  contributing 
  on 
  safari 
  to 
  the 
  

   same 
  useful 
  search 
  for 
  cases 
  and 
  for 
  the 
  boundaries 
  of 
  the 
  fly-areas, 
  and 
  were 
  supplied 
  

   with 
  fly-boys 
  to 
  accompany 
  them 
  and 
  collect. 
  Mr. 
  G. 
  G. 
  Griffiths, 
  passing 
  through 
  the 
  

   Chinyanga 
  belt, 
  most 
  kindly 
  collected 
  and 
  sent 
  in 
  flies 
  and 
  notes. 
  Fourthly, 
  at 
  the 
  re- 
  

   quest 
  of 
  the 
  Senior 
  Commissioner, 
  I 
  instructed 
  one 
  of 
  my 
  assistants, 
  Mr. 
  A. 
  Loveridge, 
  

   an 
  entomologist 
  and 
  an 
  expert 
  and 
  enthusiastic 
  collector 
  of 
  small 
  vertebrates, 
  to 
  

   proceed 
  to 
  the 
  area 
  at 
  the 
  end 
  of 
  August 
  to 
  undertake 
  the 
  watching 
  of 
  the 
  grass-fires 
  

   and 
  the 
  breaking 
  up 
  of 
  the 
  traffic 
  in 
  wildebeest 
  tails 
  that 
  I 
  shall 
  describe 
  as 
  occurring 
  

   about 
  Ikoma 
  and 
  causing 
  much 
  dangerous 
  movement 
  of 
  natives. 
  He 
  was 
  also 
  to 
  

   assist 
  Dr. 
  Maclean 
  with 
  regard 
  to 
  the 
  further 
  entomological 
  study 
  of 
  the 
  fly, 
  particularly 
  

   as 
  to 
  its 
  primary 
  centres, 
  and 
  to 
  collect 
  on 
  as 
  large 
  a 
  scale 
  as 
  practicable 
  the 
  smaller 
  

   vertebrates 
  of 
  the 
  area 
  in 
  order 
  to 
  supply 
  Drs. 
  Duke 
  and 
  Maclean 
  with 
  abundant 
  

   material 
  for 
  a 
  study 
  of 
  the 
  blood 
  of 
  the 
  smaller 
  potential 
  food-animals 
  of 
  the 
  

   incriminated 
  tsetse. 
  Dr. 
  Maclean 
  himself 
  I 
  found 
  to 
  be 
  an 
  enthusiastic 
  yet 
  cautious 
  

   investigator 
  anxious 
  to 
  work 
  on 
  every 
  side 
  of 
  the 
  problem. 
  

  

  

  