421 
Rat 3 —White $, weight 225 grams. Dose : two million Trypanosomes. (H.B.F.) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Parasites per c.mm. 
— 
12 
3 , 48 o 
58,240 
16,000 
1,840 
6,400 
. 
20 
20 
'4 
86 
106 
40 
•5 
Day . 
S 
9 
— 
— 
— 
— 
- 
Parasites per c.mm. 
52,000 
42,400 
— 
— 
— 
— 
— 
Temp. 
■5 
0 
— 
— 
— 
— 
Rat 4.—Piebald cj, weight 220 grams. Dose : 500,000 Trypanosomes. 
(H.B.F.) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Parasites per c.mm. 
_ 
— 
— 
8 
1,960 
11,520 
28,800 
Temp. 
40 
53 
50 
50 
34 
36 
74 
Day . 
8 
9 
to 
11 
12 
«3 
— 
Parasites per c.mm. 
56,320 
84,000 
50,000 
39,200 
160,000 
100,400 
— 
Temp. 
5 ° 
48 
38 
40 
47 
20 
Rat 5.— White ?, weight 120 grams. Dose: 750,000 Trypanosomes. 
(H.B.F.) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Parasites per c.mm. 
_ 
_ 
— 
896 
3,280 
3 2 , 5 60 
51,600 
Temp. 
38 
36 
38 
5 o 
40 
52 
48 
Day . 
8 
9 
to 
11 
— 
— 
— 
Parasites per c.mm. 
. 64,800 
22,800 
16,800 
6,160 
— 
— 
— 
Temp . 
44 
22 
20 
10 
