4 2 7 
Rat 18—continued. 
Day .. 
8 
9 
— 
— 
— 
— 
— 
Parasites per c.mm. 
129,024 
175,200 
— 
— 
- 
— 
Temp. 
46 
— 
i 
— 
— 
The graph of Rat 18 is represented in 
Chart 2. 
Rat 19.—Piebald, weight 137 grams. 
Dose : 
,500,000 Trypanosomes. 
(H.B.F.) 
Day . 
1 
2 
3 1 
4 
5 
6 
7 
Parasites per c.mm. 
— 
— 
48 
4,920 
9,800 
26,880 
Temp. 
40 
4 ° 
52 
62 
5 ° 
62 
5 2 
Day . 
8 
9 
10 
— 
I 
— 
Parasites per c.mm. 
31,000 
51,080 
160,000 
— 
— 
Temp. 
44 
44 
30 
— 
Rat 20.—Piebald (J, weight 182 grams. 
Dose : 
two million Trypanosomes. (H.B.F.) 
Day . 
1 
2 
4 
5 
6 
7 
8 
Parasites per c.mm. 
_ 
— 
20 
4 » 35 2 
6,640 
7,77 6 
20,088 
126,000 
Temp. 
36 
36 
34 
5 2 
48 
47 
10 
0 
Rat 2!.—Piebald <J, weight 130 grams. 
Dose 
: 1,500,000 Trypanosomes 
. (H.B.F 
•) 
Day . 
1 
2 
3 
4 
5 
6 
7 
Parasites per c.mm. 
_ 
— 
36 
3,888 
42,200 
58,800 
Temp. 
38 
3 6 
38 
5 ° 
34 
58 
20 
Day . 
8 
9 
10 
11 
— 
— 
— 
Parasites per c.mm. 
86,832 
97 
200 
112,000 
144,000 
— 
— 
— 
Temp. 
t 6 
50 
20 
O 
