zed magnet or a horseshoe magnet carrying a full current and
one from which the current was wholly cut off."

Five different patients were tested in the same way, through a long
series of experiments, with the same results, a practical proof that Dr.
Luys had been totally deceived and his new and wonderful discoveries
amounted to nothing.

There is, however, another possible explanation, namely, telepathy, in a
real hypnotic condition. Even if Dr. Luys's experiments were genuine
this would be the rational explanation. They were a case of suggestion
of some sort, without doubt.

Nearly every book on hypnotism gives various rules for detecting
simulation of the hypnotic state. One of the commonest tests is that of
anaesthesia. A pin or pen-knife is stuck into a subject to see if he is
insensible to pain; but as we shall see in a latter chapter, this
insensibility also may be simulated, for by long training some persons
learn to control their facial expressions perfectly. We have already
seen that the pulse and respiration tests are not sufficient. Hypnotic
persons often flush slightly in the face; but it is true that there are
persons who can flush on any part of the body at will.

Mr. Ernest Hart had an article in the Century Magazine on "The Eternal
Gullible," in which he gives the confessions of a professional hypnotic
subject. This person, whom he calls L., he brought to his house, where
some experiments were tried in the presence of a number of doctors,
whose names are quoted. The quotation of a paragraph or two from Mr.
Hart's article will be of interest. Says he:

"The 'catalepsy business' had more artistic merit. So rigid did L. make
his muscles that he could be lifted in one piece like an Egyptian mummy.
He lay with his head on the back of one chair, and his heels on another,
and allowed a fairly heavy man to sit on his stomach; it seemed to me,
however, that he was here within a 'straw' or two of the limit of his
endurance. The 'blister trick,' spoken of by Truth as having deceived
some medical men, was done by rapidly biting and sucking the skin of the
wrist. L. did manage with some difficulty to raise a slight swelling,
but the marks of the teeth were plainly visible." (Possibly L. had made
his skin so tough by repeated biting that he could no longer raise the
blister!)

"One point in L.'s exhibition which was undoubtedly genuine was his
remarkable and stoical endurance of pain. He stood before us smilin