Here we have got at the root of a hallucination.

We have not merely inferential but direct evidence that the imaginary voice which terrified Leonie II.

proceeded from a profounder stratum of consciousness in the same individual.

In what way, by the aid of what nervous mechanism, was the startling monition conveyed?
Just as Mme.

B.was sent, by means of passes, into a state of lethargy, from which she emerged as Leonie II., so Leonie II., in her turn, was reduced by renewed passes to a state of lethargy from which she emerged no longer as Leonie II.