genus,  and  will  be  described  independently.  All  these  animals  were 
shot  in  districts  infested  by  Glossina  morsitans. 
I.  Bushbirck,  Tragelaphus  scriptus.  A  young  male  in  good 
condition,  shot  November  loth,  1907,  at  N’tampwa,  some  forty 
miles  south-west  of  Ndola  in  North-Western  Rhodesia. 
The  heart  blood  was  examined  about  one  and  a  half  hours  after 
death,  and  trypanosomes  about  one  in  ten  fields  seen  in  fresh 
preparation.  A  white  rat  was  inoculated  at  once  with  2  o  c.cia. 
intraperitoneally,  but  never  became  infected  and  was  killed  by 
T.  congolense  eleven  months  later. 
Morphology  of  the  trypanosomes.  In  fresh  preparation  the 
movement  was  limited  to  the  field.  Stained,  the  following  is  the 
mean  of  ten  measurements:  — 
Extremity  to  Nucleus  to 
Nucleus  Nucleus  flagellar  extremity 
4-31  1-9  5'^S 
The  picture,  then,  is  one  of  a  tadpole  trypanosome,  which  may  be 
associated  with  T.  dimorphon,  T.  confusum,  T.  congolense  or 
T.  nanuni.  The  failure  to  obtain  this  strain  in  the  inoculated  rat 
leaves  its  identity  uncertain. 
2.  Hartebeest,  Bubalis  lichtensteini.  An  adult  male  in  normal 
good  condition,  shot  on  the  8th  December,  190;,  about  twenty  miles 
north  of  Ndola.  The  heart  blood  was  examined  within  two  hours  of 
death.  Filaria  present  (they  are  apparently  fairly  common  in  this 
antelope),  and  two  trypanosomes  were  seen  in  two  fresh  cover-glass 
preparations.  A  white  rat  was  inoculated  intraperitoneally  with 
1-5  c.cm.,  but  never  became  infected.  In  fresh  preparation  the 
trypanosome  was  localised  to  the  field  and  produced  but  scanty 
movement  among  the  corpuscles.  It  was  apparently  short,  not  more 
than  15  y,  and  did  not  possess  a  flagellum.  We  have  been  unable 
to  find  any  organism  in  the  dry  films  made  from  this  animal. 
Inoculations  were  made  intraperitoneally  into  healthy  dogs  from 
the  heart-blood  of  a  buffalo  (S'O  c.cm.)  and  a  wart  hog  (S'O  c.cm.)  shot 
by  Dr.  Yale-Massey  close  to  our  camp  at  Broken  Hill.  The  buffalo 
belonged  to  a  herd  known  to  frequent  tsetse  areas  in  the  locality.  In 
neither  case  did  the  dogs  become  infected. 
