Immunity Against Hemorrhagic Septicemia 
o 
Table 1. 
1921 No. 1052 
Rabbit 
No. 
Injection 
of serum 
No. 1052, 
Feb. 11, 
c.c. 
Injection 
of virus 
No. 620, 
Feb. 12, 
1/500 c.c. 
Injection 
of virus 
No. 620, 
Feb. 27, 
1/600 c.c. 
Dates 
of 
deaths 
Remarks 
1 
15 
+ 
+ 
March 1 
2 
15 
+ 
+ 
Feb. 28 
3 
15 
+ 
+ 
Feb. 28 
4 
10 
+ 
+ 
March 1 
5 
10 
+ 
+ 
March 2 
6 
10 
+ 
+ 
March 1 
7 
5 
+ 
+ 
March 1 
8 
5 
+ ' 
+ 
March 1 
9 
5 
+ 
— 
Feb. 18 
10 
2.5 
+ 
— 
Feb. 17 
11 
2.5 
+ 
+ 
March 2 
12 
2.5 
+ 
Feb. 18 
NOTE — The fact that an injection was made is indicated by the + . A dash ( — ) 
is used to show that no injection took place. 
Table 2. 
1921 (Normal) No. 1052 
Rabbit 
No. 
Injection 
of normal 
serum, 
Feb. 11, 
c.c. 
Injection 
of virus 
No. 620, 
Feb. 12, 
1/500 c.c. 
Injection 
of virus 
No. 620, 
Feb. 27, 
1/600 c.c. 
Dates 
of 
deaths 
Remarks 
1 
15 
+ 
— 
Feb. 17 
2 
15 
+ 
+ 
March 7 
3 
15 
+ 
— 
Feb. 14 
4 
10 
+ 
— 
Feb. 14 
5 
10 
+ 
— 
Feb. 15 
6 
10 
' + 
— 
Feb. 14 
7 
5 
+ 
— 
Feb. 14 
8 
5 
+ 
— 
Feb. 14 
9 
5 
+ 
— 
Feb. 15 
10 
2.5 
+ 
— 
Feb. 15 
11 
2.5 
+ 
— 
Feb. 14 
12 
2.5 
+ 
+ 
? 
Record of date of death 
lost. 
