at Mongalla on the east bank of the Nile. 1 wired to the Governor as to the locality from which this herd came, but failed to elicit any definite information. Archibald, however, has described T . peconmt as occurring in a cow from Bor, which is in the more 50 lo II i2 13 14 15 li I"' Values of l Chart I. Curve of measurements of trypanosome from transport bull.

northerly part of the Mongalla Province and on the east bank of the river. Until animal inoculations were carried out, it was of course impossible to decide accurately the species of trypanosome with which we were dealing. Accordingly, I wired to Captain Thompson, asking him if at all possible to inoculate laboratory and other animals, and to let me know the result. I have now heard from him to the effect that an inoculated dog showed trypanosomes in its blood fourteen days after the injection.* It would, therefoie, * These trvpanosomes then disappeared and were not again found, while the dog has remained throughout in good condition. Fifteen rats which were inoculated died within 48 hours of inoculation from some unknown cau<e. It would seem, therefore, that the bull trypanosome may have been T. namm after all.