he will see why
sensation is neutralized there; and he will also see why the succeeding
zones of sensation are double the distance from each other that the
first one is from the surface of the body; it is simply because the
surface of the body cuts the first long wave exactly in the middle, and
therefore only half that wave occurs outside the body. This is the
explanation given by De Rochas, and it affords another example of that
principle of mathematical sequence of which I have spoken. It would
appear that under normal conditions the double series of vibrations is
spread all over the body, and so all parts are alike sensitive to touch.

I think, then, we may assume on the basis of De Rochas' experiments and
others that there are such things as etheric vibrations proceeding from
human personality, and in the next chapter I will give some examples
showing that the psychic personality extends still further than these
experiments, taken by themselves, would indicate--in fact that we
possess an additional range of faculties far exceeding those which we
ordinarily exercise through the physical body, and which must therefore
be included in our conception of ourselves if we are to have an adequate
idea of what we really are.

CHAPTER II

SOME PSYCHIC EXPERIENCES

The preceding chapter has introduced the reader to the general subject
of etheric vibration as one of the natural forces of the Universe, both
as the foundation of all matter and as the medium for the transmission
of energy to immense distances, and also as something continually
emanating from human beings. In the present chapter I shall consider it
more particularly in this last aspect, which, as included in our own
personality, very immediately concerns ourselves. I will commence with
an instance of the practical application of this fact. Some years ago I
was lunching at the house of Lady ---- in company of a well-known mental
healer whom I will call Mr. Y. and a well-known London physician whom I
will call Dr. W. Mr. Y. mentioned the case of a lady whose leg had been
amputated above the knee some years previously to her coming under his
care, yet she frequently felt pains in the (amputated) knee and lower
part of the left leg and foot. Dr. W. said this was to be attributed to
the nerves which convey to the brain the sensation of the extremities,
much as a telegraph line might be tapped in the middle, and Mr. Y.
agreed that this was perfectly true on t