178 Col. Sir D. Bruce and others. TZrypanosome  [Oct. 1, 
Breadth.—Varies from 1°5 to 2°5 microns. 
Shape.—This species of trypanosome seems to differ in shape from 7. vivax 
in that there is not the marked narrowing or constriction opposite the 
nucleus. The posterior extremity is rounded or blunt, and in this 
resembles 7’. vivax (Plate 12). 
Contents of Cell.—Resembles 7’. vivax in showing the appearance of clear 
protoplasm with fine alveolar structure. 
Nucleus.—Oval in shape and compact; not, as a rule, situated in a narrowed 
part of the body or waist, asin 7’. vivax. It also seems to be placed about 
the centre of the body, and does not take up the whole width of the cell as 
in the closely allied species. 
Micronucleus—Resembles 7. vivax in being large, round, and terminal. 
Ondulating Membrane.—Narrow and little developed, as in 7. vivax. 
Flagellum.—There is a well-marked flagellum, the free part varying from 
2 to 5 microns in length. 
ANIMALS SUSCEPTIBLE TO TRYPANOSOMA UNIFORME. 
Period of Duration 
Date. of Sona Gi incubation, | of disease, Remarks 
virus. : : 
expt. in days. in days.* 
| 
Cattle. 
1909. Sea 
Aug. 7 | 1442 | Nat. infec. P 5 Died of 7. uniforme. 
S730 |), 158i % » 61 Killed. 
So Le iv32 mM 79 Died of 7. uniforme. 
» Ll] 1784 P 80 Killed. 
Goat. 
Sept. 1 | 1491 Ox 1581 15 18 No post-mortem. 
» 16) 1689 As 18 34 mS ie 
» 18| 1694 | Goat 1491 9 35 a ‘ 
» 2h) W716 5) "Ox a5st — — Never showed trypanosomes ; under 
observation 40 days. 
Average ... 14 29 
Sheep. 
Sept. 16 | 1497 Ox 1581 18 46 Killed. 
oe pel) GOH sy — — Never showed trypanosomes; died 
10 days after inoculation. 
pear ss, gale 5; — — Never showed trypanosomes; died 
13 days after inoculation. 
Monkey. 
Sept. 1) 1653 | Ox1581 | — | _ | Experiment stopped after 34 days. 
* Duration includes the days of incubation; it dates from the day of infection. 
