light of their own; and the question is,
Can this emitted light penetrate solid substances--"matter," as we
understand it? As the result of a number of experiments, Dr. Ochorowicz
ascertained that, in the majority of cases, these rays, like
ultra-violet light, did not penetrate solid substances, as do the
X-rays; yet their actinic action was found to be far stronger! Here is a
field for long-continued observation and experiment. In thought
photography, on the other hand, it has been ascertained that the rays
can pass easily through solid matter, like the X-rays.

The next question of interest which presented itself for solution was
this: To what extent can the fluidic hands change their form, size, and
contour at will? Experiments were first tried in the reduction of the
size of the hands, upon request.

Three plates were prepared and laid in a series upon the table at some
distance from the medium. Through the entranced somnambule the "double"
was then informed of the experiment, and asked to place its hand upon
the three plates in succession, willing on each occasion to make the
fluidic hand smaller. This was done. An impression of the same hand was
obtained on each plate, but it can be seen that, on each occasion, the
hand is smaller in size. This was all accomplished within a few seconds.

Of these experiments Dr. Ochorowicz says:

"We are therefore justified in arriving at the following
conclusions:

"1. At first, the double's hand is larger than that of the medium.

"2. It tends to decrease in length and general size.

"3. The palm of the hand, especially, tends to decrease.

"4. Only the little finger remains without appreciable change.

"5. The change is that of several millimetres, but not enormous.

"6. The fingers of the double tended to close nearer together, as
well as become smaller--just as an ordinary hand would probably
do."

The light which supplied the necessary illumination for these
photographs seemed to have been emitted from a sort of "egg," near the
wrist of the hand, which was intensely luminous. This was not expected,
and came as a surprise. Two suggestions as to its nature at once present
themselves: (1) that it is a self-created mediumistic light; and (2)
that it is a mass of matter from which the hand derives its material
sustenance.

In a further series of experiments, during which Dr. Ochorowicz was
repeatedly touched by a col