Page:AJWall Indian Snake Poisons.djvu/39

24 included in the ligature. One cubic centimetre of solution of cobra-poison, composed of equal parts of distilled water and fresh cobra-poison was injected into its dorsal sac.

{ti|2em|2.53 P.M. Injection.

It gradually became paralysed till it ceased to show any signs of reflex action.

3.33 P.M. The muscles of the left or poisoned side contracted with 2.97 volts.

3.33½ P M. The muscles of the right or non-poisoned side contracted with 2.16 volts.

3.37 P.M. Nerve of poisoned side caused contraction of muscle when stimulated with 2.7 volts.

3.39 P.M. Ligatured (or non-poisoned) nerve, 1.08 volts.}}

Here there was a marked difference between the poisoned and the non-poisoned side, the non-poisoned side being the more sensitive, but the nerve on the poisoned side had lost its excitability to a greater extent than the muscle. But the paralysis of both the muscle and the nerve was well marked.

Experiment IX.

The right thigh of a frog (Rana tigrina) was ligatured with the exception of its sciatic nerve, and one cubic centimetre of cobra-poison solution, consisting of equal parts of distilled water and fresh cobra-poison, injected into its dorsal sac.