And besides, it may be presumed that, if more decisive experiments as to their sensibility had been made upon all these subjects, they would have been found really without sight and feeling. For, in general character, persons in somnambulism exactly resemble other entranced persons, who certainly feel nothing; for they have borne the most painful surgical operations without the smallest indication of suffering. So I have little doubt that the insensibility, which the observers imputed to the somnambulists, really existed, although they may have failed to establish the fact by positive evidence. The question as to the development of a new power of perception, such as I conjecture the lad used in his walk from Tarbes to Bagnères, will be found to be resolved, or, at any rate, to be attended with no theoretical difficulties, when the performances of full-waking in trance, which I propose to describe in the next letter, shall have been laid before the reader. LETTER VIII. TRANCE-WAKING.—Instances of its spontaneous occurrence in the form of catalepsy—Analysis of catalepsy—Its three elements: double consciousness, or pure waking-trance; the spasmodic seizure; the new mental powers displayed—Cases exemplifying catalepsy—Other cases unattended with spasm, but of spontaneous occurrence, in which new mental powers were manifested—Oracles of antiquity—Animal instinct—Intuition. Under this head are contained the most marvellous phenomena which ever came as a group of facts in natural philosophy before the world; and they are reaching that stage towards general reception when their effect is most vivid and striking. Five-and-twenty years ago no one in England dreamed of believing them, although the same positive evidence of their genuineness then existed as now. Five-and-twenty years hence the same facts will be matters of familiar knowledge. It is just at the present moment (or am I anticipating the march of opinion by half a century?) that their difference, and distinctness, and abhorrence even, from our previous conceptions are most intensely felt; and that the powers which they promise eventually to place within human control excite our irrepressible wonder. I shall narrate the facts which loom so large in the dawning light, very simply and briefly, as they are manifested in catalepsy. An uninformed person being in the room with a cataleptic patient, would at first suppose her, putting aside the spasmodic affection of the body, to be simply awake in the ordinary way. By-and-by her new powers might or might not catch his observation. But a third point would certainly escape his notice. I refer to her mental state of waking trance, which gives, as it were, the local colouring to the whole performance.