The Washington times. [volume] (Washington [D.C.]) 1902-1939, 1921-08-28

mirror. In the first place the galvano-
meter registers slight changes in electric
currents. A person is connected by means
OF two electrodes and current is passed
through the body. being applied by series
OF batteries. A check can be made upon
the amount Of this current and 1t can be
varied at will by the sliding scale which
is placed behind the galvanometer. This
is known as Wheatstone bridge.
II any emotion is aroused in the subject
this causes the resistance offered by the
body to the electric current to vary and
more current must pass through the sub
ject's body as the emotion is aroused. This
variation of the current is shown in the
galvanometer. ~.
A small mirror swings to the right or
left as the current varies. and this can be
observed either through a slit through
which the observer looks or 1t can be
caused to reflect beam of light on the
opposite wall, which will travel over a
scale drawn upon the wall so that very
slight movement of the mirror will cause
a large variation on the scale at distance.
This instrument has been employed in
the past to test emotions and has been ap-
piled in criminal investigations to test the
emotional reaction of the subject when
asked certain questions in court and there
by cause him to reveal whether he was
guilty or innocent. It can be applied In
psychic investigation In a similar way A
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in the normal state. Emotional reactions
will be noted to certain words, which are
reported. When the word soldier" is
spoken she may betray quickened heart
action. When the medium goes into
trance and spirit" claims to be talking
through her mouth the doubt arises
whether this is a real spirit or only part
of the subconscious mind Of the medium.
Hitherto 1t has been impossible to prove
this by any scientific test. The present
instrument. according to one of the bureau
experts. shows 1t In the following manner:
IF the trance personality claiming to be
a spirit reacts emotionally to the same
words as those to which the medium re-
acted, we have proof that we are dealing
with the mediums mind. IT, on the con-
trary, we obtain emotional reactions to
different words we have indications al
most amounting to proof that we are deal
ing with different mind. either a spirit
as the intelligence claims to be, or an alb
solutely water-tight compartment IN the
mediums subconscious mind which reacts
to different words than the mediums nor
NAL mind. Hitherto Investigations have
failed to show the existence Of any such
water-tight compartment In cases of hyp-
notism and multiple personality"
Next is the galvanometer for testing soul
force from the body.
In another combination the galvano-
meter is used to test the psychic force that
is said to be emanats from the body. In
yestigators state that this force is given
out in large volume by some persons.
If the fingers of the two hands be held
at distance of an inch, psychic force, &C
the finger tips. The present instrument Is
devised to test not only the existence of
this energy, but its effect upon other forces,
particularly a beam of light sit is claimed
that beam of light will be DETECTED by
the bodily force emanatlng from the fin
gers. and that this phenomena can be OBJ
served with the galvanometer. This Is
analogous to Einsten's theory that light
is detected from its course by the attrac-
ton Of gravitation.