352
FINDLAY E. RUSSELL
1 0 0 1
1
4
1
VENOUS PRESSURE
I
CISTERNAL PRESSURE
i
F
CISTERNAL PRESSURE
* 1:
E mo
E l
0
1
2
3
4
5
6
7
6
9
MINUTES FOLLOWING INJECTION
.ol
I
SECONDS 1 MINUTES
FOLLOWING INJECTION
FIG. 19. Effects of a lethal dose of an extract from the tissues of the dorsal spines of
T. draco.
this finding by itself does not exclude the possiblity that the venom
might have a direct effect on central nervous system activity.
The rate and depth of respirations following injection of weever
toxin are subject to considerable variation. In small doses the venom
FINDLAY E. RUSSELL
1 0 0 1
1
4
1
VENOUS PRESSURE
I
CISTERNAL PRESSURE
i
F
CISTERNAL PRESSURE
* 1:
E mo
E l
0
1
2
3
4
5
6
7
6
9
MINUTES FOLLOWING INJECTION
.ol
I
SECONDS 1 MINUTES
FOLLOWING INJECTION
FIG. 19. Effects of a lethal dose of an extract from the tissues of the dorsal spines of
T. draco.
this finding by itself does not exclude the possiblity that the venom
might have a direct effect on central nervous system activity.
The rate and depth of respirations following injection of weever
toxin are subject to considerable variation. In small doses the venom