This is an indication of the normal function of the part of the brain which is stimulated.
Besides this method of procedure a new one, also by brain stimulation, has recently been employed.

It consists in stimulating a spot of the brain as before, but instead of observing the character of the movement which follows, the observer places galvanometers in connection with various members of the body and observes in which of the galvanometers the current comes out of the animal's body (the galvanometer being a very delicate instrument for indicating the presence of an electric current).

In this way it is determined along what pathways and to what organs the ordinary vital stimulation passes from the brain, provided it be granted that the electric current takes the same course.
3.

_Method of Intoxication, called the "Toxic Method._"-- The remarks above may suffice for a description of this method.

The results of the administration of toxic or poisonous agents upon the mind are so general and serious in their character, as readers of De Quincy know, that very little precise knowledge has been acquired by their use.
4.