ME. J. PRIESTLEY ON THE PHYSIOLOGICAL ACTION OF VANADIUM. 
541 
Non-poisoned limb. 
Distance between primary 
and secondary coils. 
Poisoned limb. 
Just moves. 
25 
25 
J ust moves. 
In this experiment no difference in the behaviour of the non-poisoned and of the 
poisoned legs could be detected, either in the case of voluntary stimuli before death, or 
of electrical stimuli after death. 
Exp. LXIL— May 19, 1874. 
Frog. — Weight 28 grms. 
Dose '5 cub. centim. of the 5 per cent, solution (25 milligrammes V 2 0 5 ), 
injected subcutaneously. 
The frog was arranged as in the preceding case, the nerves being tested, as before, as 
soon as reflex activity had ceased. 
In this experiment the motor and sensory nerves of both poisoned and non-poisoned 
limbs were affected in exactly the same way as indicated by the movements which fol- 
lowed on pinching both legs. The nerves (motor) of both limbs responded equally 
easily to electrical stimuli after death. 
Exp. LXIII.— May 19, 1874. 
Frog. — Weight 28 grms. 
Dose 1 cub. centim. (about) of the 5 per cent, solution (about 50 mil- 
ligrammes V 2 0 5 ), injected subcutaneously. 
h. m. 
4 50. The femoral artery of the right leg was tied close up to the pelvis. 
Injection of vanadium solution complete. Quite active. 
5 10. Moves on being irritated ; also spontaneously, but with a dragging movement. 
The frog was noticed at intervals during the next two hours, and exhibited 
the same phenomena as the last two had done, i. e. there did not appear 
to be any difference in behaviour between the poisoned and non-poisoned 
limbs. 
7 7. Dead to all appearance. 
Exposed sciatic nerves quickly. On cutting the skin of the left (poisoned) 
leg to expose the sciatic nerve, a slight reflex movement took place. Single 
induction-shock. 
Non-poisoned limb. 
Distance between 
coils. 
Poisoned limb. 
Just moved. 
23 
21 
Just moved. 
