Annals of tropical medicine and parasitology . h. ^ ?- t. -**fe. Fig. I. Camp at Ngoa, Congo-Zambesi To face f. 202 Fig. 2. Laboratory at Ngoa, Congo-Zambesi Watershed. C. Tiiiliiig &= Co., Ltd., Imp. 203 Experiment 11 Commenced on June 13th, 1912, with ninety wild fliespreviously proved not to be transmitting the human were allowed to feed for three days on a heavily-infectedguinea-pig, and were afterwards allowed to feed on a healthymonkey until the 40th day of the experiment. This monkey didnot become infected. On the 41st day of the experiment the flies then al
Annals of tropical medicine and parasitology . h. ^ ?- t. -**fe. Fig. I. Camp at Ngoa, Congo-Zambesi To face f. 202 Fig. 2. Laboratory at Ngoa, Congo-Zambesi Watershed. C. Tiiiliiig &= Co., Ltd., Imp. 203 Experiment 11 Commenced on June 13th, 1912, with ninety wild fliespreviously proved not to be transmitting the human were allowed to feed for three days on a heavily-infectedguinea-pig, and were afterwards allowed to feed on a healthymonkey until the 40th day of the experiment. This monkey didnot become infected. On the 41st day of the experiment the flies then alive, forty-twoin number, were placed in an incubator, kept at a temperature of85° F. Three flies were found to be infective eight days later. Experiment 12 Commenced on June 14th, 1912, with 119 wild Glossinaniorsitans, proved to be non-infective. The flics were fed fromthe 1st to the 3rd day of the experiment on a heavily-infectedguinea-pig, and afterwards to the 60th day on a healthy monkey,which did not become infected. On the 61st day the thirty-eight remaining flies were placed inthe incubator kep
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