at work in the bodies of all beings endowed with sensation and volition
- in corporeal terms, with the duality of a nervous and a muscular
system - and therefore at work also in the human body. Observation has
shown that the activities of these two systems in man and animal are
accompanied by the occurrence of different electric potentials in
different parts of the body. Plate A, Fig. iii, shows the distribution
of the two polar electric forces in the human body. The bent lines in
the diagram stand for curves of equal electric potential. The straight
line between them is the neutral zone. As might be expected, this line
runs through the heart. What seems less obvious is its slanting
position. Here the asymmetry, characteristic of the human body, comes
to expression.

If we remember that the nervous system represents the salt-pole, and
the metabolic system the sulphur-pole, of the human organism, and if we
take into account the relationship between levity and gravity at the
two poles, we can see from the distribution of the two electricities
that the coupling of levity and gravity at the negative pole of the
electrical polarity is such that levity descends into gravity, while at
the positive pole gravity rises into levity. Negative electricity
therefore must have somehow a 'spherical' character, and positive
electricity a 'radial'.

This finding is fully confirmed by electrical phenomena in the realm of
nature most remote from man (though it was an effort to solve the
enigma of man which led to the discovery of this realm). Since
Crookes's observations of the behaviour of electricity in a vacuum it
is common knowledge that only the negative kind of electricity occurs
as a freely radiating force (though it retains some properties of
inertia), whereas positive electricity seems to be much more closely