334 Fowl of Uganda as a Reservow of Virus of Sleeping Sickness. 
Experiment 2276. 
All were negative for 
flagellates. Monkey 2344 
was examined bi-weekly 
for T. gambiense till 
May 10; no trypanosomes 
ever seen. Monkey died 
of broken neck later. 
Day of | 
Date. | experi- Procedure. Result. Remarks. 2% 
ment. 
1910. 
DY Eo feet | 1—5 | Flies fed on Fowl 2087. 200 laboratory-bred _ flies 
| used. Fowl, Experiment 
| | 2087, has been fed on for 
| 18 days by 7. gambiense- 
| infected G. palpalis. 
Marloes | 6 Flies starved. | 
» 14—Apr.16| 7—40 | Flies fed on Monkey 2344.) — 116 G. palpalis dissected 
throughout this experi- 
| ment, between the 23rd 
| | and 42nd days after flies’ 
| first feed on Fowl 20687. 
| 
Remarks.—It will be seen that 400 laboratory-bred Glossina palpalis fed on the three fowls, 
Experiments 1927, 1926, and 2087, subsequently failed to infect monkeys with the virus of 
Sleeping Sickness, and that all the 283 Glossina dissected throughout these experiments were 
negative for flagellates. This absence of flagellates in the flies is interesting, because Fow] 1927 
and Fowl 1926 were both found to be naturally infected with a large avian trypanosome. It 
would thus seem that this fowl trypanosome does not undergo development in Glossina palpalis. 
Conclusion. 
7 ; ° 5 . 
The Uganda fowl cannot act as a reservoir of the virus of Sleeping 
Sickness. 
