5 °S 
R:it 42 — continued. 
Day 
20 
21 
Number of Trypanosomes per 
c.mm. ... 
225.872 
21 1.600 
— 
~ 
Vaccine ... 
— 
_ 
__ 
- 
Rat 43. — White, weight 140 gram*. Uotc of inoculation : 200.000 Trypanowme* 
T. rbodaienst 
Day 
1 
2 
3 
4 
5 6 
Number of Trypanosomes per 
c.mm. ... 
— 
— 
— 
840 
52.000 214.016 
Vaccine. 
1 
— 
— 
— 
12,000.000 l 12.000.00; 
Day . 
7 
8 
9 
- 
- 
Number of Trypanosomes per 
c.mm. ... 
144,000 
310.000 
5*292 
_ 
Vaccine ... 
- 
— 
- 
Ra' 44. Piebald, weight 237 grams. Dose of inoculation : 200,000 Trypanosome* 
T. rbodcsiense 
Day . 
I 
2 
1 
3 4 5 6 
Number of Trypanosomes per 
■-— 
c.mm. ... 
— 
— 
65 35,296 42,32c 248.960 
Leucocytes . 
— 
— 27-446 15.60S 50400 
Vaccine ... 
~-— 1 — -- 
— 12,000,000 12,000,000 
Day 
7 
8 
9 
10 
tt — - 
Number of Trypanosomes per 
c.mm. ... 
13,056 
39*960 
97*544 
310,000 
366.000 — 
Leucocytes 
43 -ooo 
— 
_ 
_ 
Vaccine ... 
. 
— 
~ 1 
__ 
