49 1 
rat 35.—Piebald Adult Rat, weight 145 grams. Treated in Cold Chamber with small doses 
of atoxyl. Dose of inoculation : 200,000 T. rhodesicnse 
Day . 
• 
3 
4 
5 
6 
7 
Number of Trypanosomes per 
c.mm. of blood ... ...| 
— 
.2,064 
25,112 
Atoxyl in grains . 
J 
" 1 
— 
— 
fa 
Day . 
8 
9 
10 
11 
12 
i 3 
14 
Number of Trypanosomes per 
c.mm. of blood . 
10,400 
27,968 
34 , 32 ° 
1,520 
72,128 
73 : 92 ° 
154,000 
Atoxylin grains . 
fa 
— 
fa 
— 
~ 
Day . 
«5 
16 
'7 
18 
1 
>9 
20 
21 
Number of Trypanosomes per 
c.mm. of blood . 
80,560 
230,4°° 
221,600 
18,800 
331,296 
384,384 
338,688 
Atoxylin grains . 
fa 
fa 
— 
fa 
ft) 
Day . 
22 
23 
24 
25 
26 
j _ 
| 
'j 
Number of Trypanosomes per 
c.mm. of blood 
. 390.000 
550,00c 
447,68c 
383,040 
570,000 
Atoxylin grains 
fa 
fa 
Rat 36.— White Adult, weight 251 grams. Treated in Cold Chamber' with smdl dose 
atoxyl. Dose of inoculation: 200,000 T. rhodesunse _ 
Day 
Number of Trypanosomes per 
c.mm. of blood 
Atoxyl in grains . 
6 7 
192 
