357 
The symptoms presented were those usually found in rabbits 
suffering from trypanosomiasis, viz., blepharo-conjunctivitis, oedema 
of the head and ears, purulent discharge from the nose and eyes, 
loss of hair, emaciation and anaemia. Probably, owing to the 
shorter course of the disease, these symptoms were not so marked as 
in the rabbits infected with T. gambiense , where the disease is much 
more chronic. Two of the animals were very drowsy for a week 
before death (Nos. 5 and 6). 
Table 3. —Rabbits infected with the Rhodesian strain 
Amount of virus 
injected subcutaneously 
or intrapcritoneally 
Day on 
which 
parasites 
were first 
seen in 
blood 
Day on 
which 
death 
occurred 
1. Intraperitoneally. 1 c.c. of 
diluted blood solution con¬ 
taining 1000 trypanosomes 
per c.mm. 
9th day 
45th day 
2. Subcutaneously. 1 c.c. of 
diluted blood solution con¬ 
taining 10,000 trypanosomes 
per c.mm. 
3 rd » 
32nd „ 
3. Intraperitoneally. 1 c.c. of 
diluted blood solution con¬ 
taining 500 trypanosomes 
per c.mm. 
7 th „ 
26th „ 
4. Intraperitoneally. 1 c.c. of 
diluted blood solution con¬ 
taining 1000 trypanosomes 
per c.mm. 
5 th „ 
26th „ 
5 - » )? 
9th „ 
19th „ 
6 - * 
9th „ 
19 th „ 
7. Intraperitoneally. 1 c.c. of 
diluted blood solution con¬ 
taining 250 trypanosomes 
per c.mm. 
14 th „ 
S. Intraperitoneally. 1 c.c. of 
diluted blood solution con¬ 
taining 1 coo trypanosomes 
per c.mm. 
8 th „ 
30th „ 
Remarks 
Parasites scanty until the last few 
days, when they were fairly 
numerous, and when a few 
posterior nuclear forms were 
seen. 
>) 
>> 
5 > 
Parasites scanty, but constantly 
present until time of death, 
when they were fairly numerous 
(10 to a field). No posterior 
nuclear forms found. The 
animal was very lethargic 
during the List week. 
» ” 
Animal alive after 32 days. Para¬ 
sites constantly present, but 
scanty. No posterior nuclear 
forms seen. Marked oede- 
matous swelling of slun of head, 
loss of hair, ears thickened. 
Parasites only found m small 
numbers until last few days, 
when they were fairly plentiful 
( 5 to a field). A few posterior 
nuclear forms found._ 
