e also seen that there is a centrifugal force in all electric fields,
which is due partly to electric waves, and partly to the magnetic waves
of the Aether.

It will be interesting to find out, what law governs the intensity of
this force in any part of the field, or at a given distance from the
central body. We have seen (Art. 66) that the law governing the
intensity of heat at any distance from the sun, is the law of inverse
squares. Further, from Art. 75 we have also learned that light is
subject to the same law of inverse squares, as indeed it should be, if
it be due to one and the same medium, the Aether.

If, therefore, electricity is also due to certain motions of the
aetherial medium originated by the action of an electrified body as the
sun, in the same way that light and heat waves are originated, then it
ought to follow that the repulsive power of electricity is also subject
to the same law of inverse squares. As a matter of fact, that is exactly
the state of affairs, so that we find the intensity of the repulsive power
in the Aether from any central body, due to the electric waves, or the
pressure due to the wave motions of the electric Aether, in relation to
that body, is governed and controlled by the same law that governs light
and heat.

It may be suggested that such a coincidence is not a very strong
argument, as all forces emanating from a central body are subject to the
same law of inverse squares. In reply to that, I should like to point
out, that even that objection only strengthens the conception of the
Aether that we are endeavouring to complete. Our contention is, that all
physical forces, whether they be light, heat, electricity, magnetism or
Gravitation, are all due to the motions of the aetherial medium; which
motions may be generated by a heated or luminous or electrified body,
and are radiated from such a body in waves of concentric spherical form,
and are all subject to the laws of inverse squares.

So that the fact of the intensity of the centrifugal force due to the
repulsive power of electricity falling into line with the law governing
light and heat is, to my mind at any rate, only a clearer proof of the
one common origin of all the physical forces. The law of inverse squares
in relation to electricity may be thus stated. The Centrifugal or
Repulsive Force between two charged electrified bodies acts inversely as
the square of the distance between them.

This law was proved by Coulo