employment is advisable before any suspected animal be considered 
free from the disease. 
Animala ill which Autnaktiot 
trypn. were found »i>owiD{ tnpt. 
in i>rriphcral Mood penphm% 
Number of glands punctured ... a6 ... 33 
Tryps. seen in gland juice ... 19 ... I 
From a few observations made in India on camels sufferti^ from 
Surra we considered that this method was a valuable aid to diagnosis, 
and in this respect we agree with the views of Dutton and Todd,* who 
used it in the detection of trypanosomiasis in cattle of the Ccfflgo; 
but in Rhodesia our results so far lead u.s to consider this method as 
of little diagnostic importance. 
The duration of the disease cannot be definitely asserted, but from 
the views held by local stock-ow'ncrs and our own obser\'ations on 
animals whose histories are fairly complete, and on experiinenta! 
cattle, from one to five months would appear to represent the normal 
In fourteen of our cases the time which elapsed between diagnosis 
and death averaged thirty days, and many of these animals were in 
excellent condition and could not be suspected clinically. It seems 
probable that in a few cattle a chronic form is established; of this 
we have no direct evidence, but the histories of some stock examined, 
and the occurrence of two herds in which a large percentage were 
c inically cases of trypanosomiasis, but which did not show organisms, 
^ the possibility. In one animal of this nature 
) every sign of the disease from a clinical standpoint was 
Shown, but trypanosomes only appeared five days previous to death, 
after an absence of 1 5 days. 
lesions observable post-mortem are those of an emaciating 
Dallnr the visible mucous membranes, flaccidity and 
pa or of the muscles. The amount of fluid m the body cavities 
Practically nit, wh.Ut m one annaal 
Petechiae ^ ‘^^ocx. were obtained from the [lentoneal canty 
clots commo ^ “ considerable degree, and the white 
glandsTre T "I""'' 'Ml 
matter t if ’ o' * 
’ “'■o frequently haemorrhagic. Enlargrnieiil 
