viii 
PAGE 
Tsetse  flies,  distribution  of  in  North- 
Eastern  Rhodesia  .  281 
Map  showing  distribution 
of  in  Rhodesia  .  374 
I'rine,  Mechanism  of  production  of 
suppression  of  in  blackw^ater 
fever  .  94 
,,  '('he  Action  of  on  red  blood 
cells  and  on  dissolved  haemo¬ 
globin  ' .  51 
PAGE 
Willcocks,  Mosquitos  in  Cairo  and  its 
environs  . * . 
Yorke  and  Barratt,  The  mechanism  of 
production  of  Blackwater  .  1 
Yorke,  On  the  variation  of  the  haemo¬ 
lytic  complement  in  experimental 
'I'rypanosomiasis .  365 
INDEX  OF  SPECIES  NEW  TO  SCIENCE 
.Hvloins  jamaicensis,  Newstead 
465 
