425 
Rat >3 — continued. 
Day . 
15 
16 
— 
— 
— 
— 
- 
Number of Trypanosomes per 
c.mm. 
118,272 
162,288 
— 
— 
— 
— 
— 
This animal was pregnant, and gave birth to eight young rats on ninth day. 
Rat 14.—Piebald, weight 127 grams. Dose of inoculation = 200,000 T rypanosomes. (J.G.T.) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Number of Trypanosomes per 
c.mm. 
— 
— 
— 
i, 44 ° 
45,60° 
66,240 ^ 
7 ,i 44 
Day . 
8 
9 
10 
11 
12 
— 
— 
Number of Trypanosomes per 
c.mm. 
50,232 
77 ) 44 ° 
250,000 
464,640 
500,000 
— 
— 
Rat 15.—Piebald, weight 104 grams. Dose of inoculation - 
200,000 
Trypanosomes. (J.G.T.) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Number of Trypanosomes per 
c.mm. 
— 
— 
— 
4 
4,620 
45,440 
Day . 
8 
9 
10 
11 
— 
— 
— 
Number of Trypanosomes per 
c.mm. 
24,472 
44,352 
194,128 
410,000 
— 
— 
— 
Rat 16.—White, weight 58 grams. Dose of inoculation = 200,000 Trypanosomes. (J.G.T.) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Number of Trypanosomes per 
c.mm. 
_ 
_ 
— 
104 
37,000 
30,240 
Temp. 
42 
44 
36 
44 
46 
Day . 
8 
9 
10 
11 
12 
— 
— 
Number of Trypanosomes per 
c.mm. 
126,000 
86,640 
121,600 
189,000 
160,800 
— 
— 
Temp. 
34 
52 
20 
34 
18 
" 
Note 1 staircase ' rise in the numbers of the parasites. 
