203 
Esperi- 
Iment 
' No. 
No. and 
species of 
mosquito 
Type of 
parasite 
No. of 
gametes 
Dissected : 
days after 
biting 
No. of 
zygotes 
present 
Controlled 
by Ce. 
albimana 
Date of 
experi¬ 
ment 
No. of 
patient 
Ova 
developed 
42 
I 
A. 
E.A. 
10 
5 ! 
3 or 4 
Yes 
Feb. 
6 
53742 
No 
43 
1 
A. 
E.A. 
5 
5 
Yes 
99 
8 
53742 
No 
43 
1 
M. 
E.A. 
5 
2 } 
0 
Yes 
99 
8 
53742 
No 
47 
1 
P. 
E.A. 
1 
Si 
0 
Yes 
91 
>9 
53937 
No 
47 
1 
M. 
E.A. 
l 
Si 
0 
Yes 
19 
'9 
53937 
No 
47 
1 
Ag. 
E.A. 
1 
Si 
0 
Yes 
99 
'9 
53937 
No 
47 
1 
Ag. 
E.A. 
\ 
si 
0 
Yes 
19 
*9 
53937 
No 
47 
1 
M. 
E.A. 
4 
si 
O 
Yes 
19 
'9 
53937 
No 
202 
1 
P. 
? 
0 ? 
4 
0 
No 
Aug. 24 
Bed go 
Yes 
202 
1 
T. 
? 
0 ? 
4 
0 
No 
91 
24 
Bed go 
Yes 
204 
1 
A. 
E.A. 
s + - 
3 
40 
Yes 
99 
28 
63472 
Yes 
204 
1 
T. 
E.A. 
5 + - 
4 
Many 
Yes 
19 
28 
63472 
No 
204 
1 
A. 
E.A. 
5 + — 
0 
Many 
Yes 
11 
28 
63472 
Yes 
209 
1 
T. 
E.A. 
5 + — 
2 
20 
Yes 
Oct. 
5 
65343 
Yes 
209 
1 
T. 
E.A. 
5 + “ 
2 
22 
Yes 
91 
5 
65343 
Yes 
•A. = albimana tE.A. = malignant tertian 
M. = malefactor Tert. = simple tertian 
T. = tarsimaculata 
P. = pseudopunctipennis 
Ag. = argyrotarsis 
Notes and Conclusions from the foregoing Table 
Species 
Number 
Infected 
Percentage 
infected 
An. (tj malefactor . 
17 
0 
o-o 
A. pseudopunctipennis . 
3 1 
4 
12-g 
Ce. albimana 
48+2 
34 + 2 
70*2 
*Ce. argyrotarsis . 
4 
0 
o-o 
6o-o 
Ce. tarsimaculata . 
5 
3 
• A naturally-infected specimen of this species lias been found in barracks. 
Out of several hundred mosquitos used in the biting expeiiments 
io7 gave satisfactory dissections, or paraffin sections, and it was 
determined that: — 
jo'2 per cent, of Ce. albimana became infected, 
6o per cent, of Ce. (?) tarsimaculata became infected; and 
I2Q per cent, of A. pseudopunctipennis became infected; 
while none of An. (?) malefactor became infected, although several 
were placed in jars with Ce. albimana and bit at the same time 
persons from whom the specimens of Ce. albimana became infected. 
