of the physical body contributing to the
psychic phenomenon, since the person seen had been dead for nearly
twenty years; and coupling this fact with the distance from the physical
body at which the psychic action took place in the other cases I have
mentioned, I think there is a very strong presumption that the psychic
powers can, and do, act independently of the physical body; though of
course it does not follow from this that they cannot also act in
conjunction with it.

On the other hand, a comparison of the present case with those
previously mentioned, fails to throw any light on the important question
whether the deceased feels any consciousness of the action which the
percipient sees, or whether what is seen is like a sort of photograph
impressed upon the atmosphere of a particular locality, and visible only
to certain persons, who are able to sense etheric wave-lengths which are
outside the range of the single octave forming the solar spectrum. It
throws no light on this question, because, in the case of my being seen
by Mr. S. in Edinburgh and that of Miss B. and her mother being seen by
me at Norwood, none of us were conscious of having been at those
places; while in the case of my psychic visit to Lanercost Abbey, and
other similar experiences I have had, I have been fully aware of seeing
the places in question. The evidence tells both ways, and I can
therefore only infer that there are two modes of psychic action, in one
of which the person projecting that action, whether voluntarily or
involuntarily, experiences corresponding sensations, and the other in
which he does not; but I am unable to offer any criterion by which the
observer can, with certainty, distinguish between the two.

It appears to me, that such instances as those I have mentioned, point
to ranges of etheric action beyond those ordinarily recognized by
physical science, but the principle seems to be the same, and it is for
this reason that I have taken the modern scientific theory of etheric
vibration as our starting-point. The universe is one great whole, and
the laws of one part cannot contradict those of another; therefore the
explanation of such queer happenings is not to be found by denying the
well-ascertained laws of Nature on the physical plane, but by
considering whether these laws do not extend further. It is on this
account that I would lay stress on the Mathematical side of things, and
have adduced instances where various discove