373 
VIII.  SUPPLEMENTARY  NOTE  TO  OUR  ‘REPORT  ON 
TRYPANOSOMIASIS  OF  DOMESTIC  STOCK  IN 
NORTH-WESTERN  RHODESIA* 
Infection  by  2'.  dimorfkon,  pp.  104-112. 
On  our  departure  from  Broken  Hill  all  infected  goats  and  sheep 
were  left  at  the  camp  in  charge  of  a  native,  but  were  kindly  visited 
on  one  or  two  occasions  by  a  European,  who  has  informed  us  these 
animals  all  succumbed  before  the  end  of  January,  1908. 
Donkey,  Case  No.  LV,  page  108.  This  animal  remained  in 
splendid  condition  and  indeed  improved,  and  in  March  was  sold  at 
an  enhanced  price,  despite  the  purchaser’s  knowledge  of  his  history. 
He  was  alive  and  working  well  at  the  end  of  December,  1908, 
thirteen  months  after  trypanosomes  were  seen  in  his  blood.  We 
have  to  thank  the  Administration  for  making  arrangements  for  the 
regular  inspection  of  this  animal  by  the  local  Medical  Officer. 
The  strain  of  T.  dimor pho^^,  derived  from  Case  XXV,  was  taken 
away  with  us  in  guinea-pigs  and  rats,  but  owing  to  the  shortage  of 
these  animals  it  was  permitted  to  die  out  at  Madona  early  in  1908. 
Infection  by  T.  vivax,  pp.  112-11/. 
We  paid  a  hasty  visit  to  Broken  Hill  in  November,  1907,  two 
months  after  our  departure,  and  were  then  informed  by  the  native  in 
charge  that  sheep.  Case  XXXIX,  had  been  one  of  several  killed  by 
a  leopard  the  previous  week.  With  the  loss  of  this  animal  the  strain 
disappeared. 
Donkey,  Case  No.  LVIll,  page  114.  This  animal  was  re¬ 
purchased  by  his  original  owner  on  return  from  leave,  and  taken  to 
Chinsali,  where  we  again  examined  him  in  May  and  August,  1908, 
without  finding  any  signs  of  trypanosomiasis. 
Morphology  of  the  Cattle  Trypanosomes,  pp.  118-123. 
In  a  later  publication  we  have  discussed  the  nomenclature  of  these 
trypanosomes,  and  more  recently  we  have  emphasised  the  view  that 
the  Broken  Hill  2 .  dimorfhon  is  identical  with  the  original  of  Dutton 
and  Todd,  which  is  distinct  from  that  strain  later  employed  both  at 
*  Annals  Trap.  Med.  and  Parnsil ,  VoL  II,  Nu, 
