28 
Peptone versus p>eptone. 
Xo. 
G. P. 
First injecvion. 
Interval. 
Second injection. 
Result. 
Days. 
492 
0.5 c. c. half-saturated 
21 
6 c. c. saturated so- 
Slight symptoms. 
solution peptone, su b- 
lution of peptone. 
cutaneously. 
intraperitoneally. 
490 
1 c. c. half-saturated so- 
21 
do 
Mild symptoms. 
lution peptone, sub- 
cutaneously. 
491 
3 c. c. half-saturated so- 
21 
do 1 
Marked symptoms. 
lution peptone, sub- 
cutaneously. 
1 
488 
0.1 c. c. half-saturated 
21 
do i 
Marked symptoms. 
solutionpeptone, sub- 
cutaneously. 
j 
748 
0.1 c. c. heated, half-sat- 
urated solution pep- 
tone, subcutaneously. 
21 
1 
6 c. c. half-saturated 
solution of pep- 
tone, intraperi- 
toneally. 
Marked symptoms. 
i 
749 
0.5 c. c. heated, half-sat- 
urated solution pep- 
tone, subcutaneously. 
1 c. c. heated, half-sal- 
21 
do 
j Xo symptoms. 
- 750 
21 
do 
Marked symptoms. 
urated solution pep- 
tone, subcutaneously. 
3 c. c. heated, half-sat- 
751 
21 
6 c. c. half-saturated 
Marked symptoms. 
urated solution, pep- 
tone, subcutaneously. 
solution of pep- 
tone, intraperi- 
toneally. 
6 c. c. half-saturated 
752 
5 c. c. heated, half-sat- 
21 
Marked symptoms. 
urated solution pep- 
solution of pep- 
tone, subcutaneously. 
tone, subcutane- 
ously. 
Control: 6 c. c. half-saturated solution of peptone, heated, sub- 
Xo symptoms. 
1 
cutaneously. 
Tyrosin versus tyrosin. 
Xo. 
G. P. 
First injection. 
Interval. 
Second injection. 
Results. 
■39 
740 
•41 
0.002 gm. watery solu- 
tion of ty rosin, sub- 
cutaneously. 
Days. 
21 
Bolu- 
sub- 
6 c. c. tyrosin (0.1 
gm. — 50 c. c. ) 
watery solution, in- 
traperitoneally. 
20 c. c. tyrosin (0.1 
gm. 4 - 50 c. c. ) 
watery solution, in- 
traperitoneally. 
10 c. c. tyrosin (0.1 
gm. -f 50 c. c. ) 
watery solution, in- 
traperitoneally. 
Control: 6 c. c. tyrosin (0.1 gm. ^ 50 c. c.) watery solution, in- 
0.01 gm. watery 
tion of tyrosin, 
cutaneouslv. 
0.02 gm. watery solu- 
tion of tyrosin, sub- 
cutaneously. 
21 
21 
traperitoneally, into a fresh guinea pig. 
Xo symptoms. 
Xo symptoms. 
Xo symptoms. 
Xo symptoms. 
