were indeed my own
footsteps--and upon this point she was even more positive than I--the
footsteps of my immaterial self.

I have made my presence felt, though I have never "appeared," on several
other occasions. In my sleep, I believe, I am often separated from my
physical body, as my dreams are so intensely real and vivid. They are so
real that I am frequently able to remember, almost _verbatim_, long
conversations I have had in them, and I awake repeating broken-off
sentences. Often, after I have taken active exercise, such as running,
or done manual labour, such as digging or lifting heavy weights in the
land of my dreams, my muscles have ached all the following day.

With regard to the projections of other people, I have often seen
phantasms of the living, and an account of one appearing to me, when in
the company of three other persons, all of whom saw it, may be read in
the Psychical Research Society's Magazine for October 1899. I have
referred to it as well as to other of my similar experiences in
_Ghostly Phenomena_ and _Haunted Houses of London_.

_Doubles_, _i.e._ people who are more or less the exact counterpart of
other people, may easily be taken for projections by those who have but
little acquaintance with the occult. I, myself, have seen many doubles,
but though they be as like as the proverbial two peas, I can tell at a
glance whether they be the material or immaterial likeness of those they
so exactly resemble. I think there is no doubt that, in a good many
instances, doubles have been mistaken for projections, and, of course,
_vice versa_.

_Telepathy and Suggestion_

Though telepathy between two very wakeful minds is an established fact,
I do not think it is generally known that it can also take place between
two minds when asleep, or between one person awake and another asleep,
and yet I have proved this to be the case. My wife and I continually
dream of the same thing at the same time, and if I lie down in the
afternoon and fall asleep alone, she often thinks of precisely what I am
dreaming about. Though telepathy and suggestion may possibly account for
hauntings when the phenomenon is only experienced individually, I cannot
see how it can do so when the manifestations are witnessed by numbers,
_i.e._ collectively. I am quite sure that neither telepathy nor
suggestion are in any degree responsible for the phenomena I have
experienced, and that the latter hail only from one quarter--the
obj