PART 10. 
MIvSCELLAXY. 
TIME. 
The longest time that has elapsed between the first and the second 
injections in a guinea pig in our experiments has been two years two 
da}^s (732 days). It therefore seems that guinea pigs once sensitized 
with mixtures of antitoxic horse serum and diphtheria toxine are 
sensitive throughout practically the remainder of their lives. 
Time. 
G. P. 
No. 
First injection. 
Inter- , 
val in 
days. 1 
Second injection. 
Result. 
4523 
0.19 c.c. toxine No. 7+1 immu- 
nity unit antitoxic horse se- 
rum (B27). 
732 
0 c. c. normal horse (roan) se- 
rum intraperitoneally. 
Dead in 00 minutes. 
Table No. 48. — Clam juice. 
G. P. 
No. 
First injection. | 
1 Inter- 
1 val in 
days. 
Second injection. 
Result. 
1050 
0.1 c. c. clam extract subcutane- | 
127 
6 c. c. clam extract subcutane- 
Marked symptoms.- 
ously. 1 
ously. 
1651 
do i 
127 
do 
Do. 
1652 
do 
127 
6 c. c. clam extract intraperito- 
neally. 
Dead in 50 minutes. 
1653 
do 
127 
do 
Marked symptoms. 
Do. 
1654 
do * 
127 
do 
1 
The above series shows that the protein matter of clams may sen- 
sitize and poison guinea pigs. 
( 57 ) 
