,
focussing, etc. The impressions of hands obtained were of various shapes
and sizes, both larger and smaller than those of the medium (who, of
course, was the only other person present), peculiarly deformed hands
and partially formed hands, according to the degree of success of the
experiment, and the desire of the medium.

These hands can only be produced in the presence, and with the
assistance, of a good "physical medium," in more or less darkness, and
are taken by means of a peculiar light which the hands seem to create
for themselves. Sometimes the hands were visible to both the medium and
Dr. Ochorowicz, sometimes visible only to the medium, sometimes
invisible to both. We are assured that in the series of tests under
consideration the impressions were obtained only when the psychic was
deeply entranced, and then only at certain times.

On a number of occasions the psychic placed her hand upon the plate,
and its impression was left upon it. The hands were photographed by
means of a form of light radiating from the hands themselves. On one
occasion, Dr. Ochorowicz held the plate against the medium's ear; the
ear itself was not photographed, but the side of the head, the hair, and
particularly the hairpins were. On two occasions a leaf was placed
between the hands and the plate, and the outline of the leaf was left
upon the latter. From these experiments it was concluded that the
rays--whatever they might be--were emitted by the "etheric body" (the
"astral" body, the "double") and not by the physical body, since their
intensity did not seem to correspond in any way to the anatomical
distribution of the nerves.

These rays may be centred and concentrated by the action of the will of
the subject. They radiate from the surface of the skin and reproduce a
simulacrum, as it were, of the surface. They throw a shadow of any
object placed between the subject and the photographic plate. They are
more penetrating than the rays discovered by M. Darget, and brought to
the attention of the French Academy several years ago. Interesting
analogies may exist here between these rays and the so-called "Black
Light" of M. Le Bon, which he describes at length in his work, _The
Evolution of Forces_.

It was now determined to attempt more interesting and startling
experiments. The medium was requested to hold her right hand in the air,
where it could be seen plainly, against the faint red light in the room.
It was not moved througho