48 
Table Xo. 40. — Comparative toxicity of other serums {Xos. 2442 , 2369 , and 2364 .) 
G.P. 
Xo. 
First injection. 
Inter- 
val in 
days. 
Second injection. 
Result. 
9936 
0.23 c.c.toxine Xo. 7+1/260 c.c. 
antitoxic horse serum (Alex. 
47 
0.05 c. c. antitoxic horse serum 
(Mul. 2442) into brain. 
^ Dead in 4 minutes. 
192). 
47 
' do 
Dead in 5 minutes. 
9943 
9937 
0.23 c. c. toxine Xo. 7+1/290 c.c. 
antitoxic horse serum (Alex. 
192.) 
023 c. c. toxine Xo. 7+1/320 c.c. 
antitoxic horse serum (Alex. 
192). 
47 
0.1 c. c. antitoxic horse serum 
(Mul. 2442) into brain. 
Dead in 3 minutes. 
9941 
023 c. c. toxine Xo. 7+1/300 c.c. 
antitoxic horse serum (Alex. 
192). 
47 
0.05 c. c. antitoxic horse serum 
(Mul. 2369) into brain. 
Dead in 8 minutes. 
1 
9939 
023 c. c. toxine Xo. 7+1/310 c.c. 
antitoxic horse serum (Alex. 
192). 
47 

1 Dead in 5 minutes. 
9933 
023 c. c. toxine Xo. 7+1,-270 c.c. 
antitoxic horse serum (Alex. 
192). 
47 
0.1 c. c. antitoxic horse serum 
(Mul. 2442) into brain. 
Dead in 3 minutes. 
1 
1 
9945 
023 c. c. toxine Xo. 7+1/180 c.c. 
antitoxic horse serum (Alex. 
192). 
47 
0.05. c. c. antitoxic horse senun 
(Mul. 2364) into brain. 
[ Marked symptoms 
9946 
do 
47 
do 
Dead in 12 minutes 
9934 
023 c.c. toxine Xo. 7+1,270 c.c. 
antitoxic horse serum (Alex. 
192). 
47 
0.1 c. c. antitoxic horse serum 
(Mul. 2364) into brain. 
Dead in 3 minutes. 
9942 
023 c.c. toxine Xo. 7+1/300 c.c. 
antitoxic horse serum (Alex. 
192). 
47 
! 
i 
do 
Marked symptoms 
The follo^ving diphtheria antitoxic horse serum (123A) was kindly 
sent us by Dr. William H. Park, who reports that it is of moderate 
strength and has given very good results in the hospital. 
Table Xo. 41. — Comparative toxicity of serum Xo. 123 A . 
G. P. ' 
Xo. 
First injection. 
Inter- : 
val in 1 
days. 
Second injection. 
Result. 
9245 
023 c.c.toxine Xo. 7+1,480 c.c. 
antitoxic horse serum (Ldrl. 
11) subcutaneously. 
131 
i 
0.05 c. c. antitoxic horse senim 
(Park 123A) into brain. 
Very severe symp- 
toms. 
9251 
023 c. c. toxine Xo. 7+l,dOOO 
c. c. antitoxic horse serum 
(Ldrl. 212) subcutaneously. 
131 
Very severe symp- 
toms. 
9242 
1 
023 c. c. toxine Xo. 7+F360 
c. c. antitoxic horse serum 
(Mul. 2377) subcutaneously. 
131 
Very severe sj'mp- 
toms. 
8759 i 
0245 c. c. toxine Xo. 42+1/320 
c. c. antitoxic horse serum 
(Strn. 1429) subcutaneously. 
232 
0.1 c. c. antitoxic horse serum 
(Park 123A) into brain. 
Very severe symp- 
toms. 
9253 
023 c.c.toxine Xo.7+l/1500c.c. 
antitoxic horse serum (Ldrl. 
21B) subcutaneously, 
131 
do 
Dead in 10 minutes. 
9239 
023 c. c. toxine Xo. 7+1,800 c.c. ■ 
antitoxic horse serum (Ldrl. 
57) subcutaneously. 
131 
1 
0.2 c. c. antitoxic horse serum 
(Park 123A) into brain. 
Dead in 5 minutes. 
