DEMONSTRATION XIII. Have the hats of a number of men in the audience
placed on a table or other place, and then returning to the room,
blindfolded of course, you pick up the hats, one by one, and place them
upon the heads of their proper owners, who are seated in different parts
of the room. This is a simple feat although very effective. It is, of
course, merely a variation of the feat of "finding the person." There is
one point, however, that must be remembered in this feat, and that is
that the Transmitter should know just whose hat is held in your
hand--just who the owner of that particular hat is and where he is
sitting or standing. Otherwise he cannot send you the mental impulses
which will enable you to find the owner. It will be well for the
Transmitter to hold the hat so that it can be seen by the audience,
requesting the owner to rise in his seat so as to indicate his
whereabouts--your back being turned to the audience while this is being
done in order to avoid suspicion of your "peeping," etc.