must follow, as pointed out in a previous Art., that
throughout the field there is a varying difference in the potential of
the field; the potential being regulated by the electric density, that
density being equivalent to the aetherial density. Further, as the
elasticity of the medium which regulates the pressure is proportional to
the density, so the pressure must decrease, as the elasticity
decreases--that is, as the electric potential decreases, or the electric
density is diminished. Therefore, if the sun be an electrified body,
ever generating electro-magnetic waves which speed away from it on every
side, then, whenever any of these waves come into contact with a planet
or comet, that planet or comet would be repelled from the sun by the
pressure of these electro-magnetic waves to which the sun gives rise in
its electric or electro-magnetic field.

Thus we again come to the conclusion that the sun is not only the centre
of a centripetal force due to Gravitation, and subject to certain laws,
whose physical cause is unknown, but it is equally the centre and source
of a centrifugal force, in that it is an electrified body, and gives
rise to electric waves which produce a pressure on any body upon which
they fall, in the sun's electric or aetherial field. It has only to be
demonstrated, therefore, that this centrifugal force satisfactorily
fulfils all the laws required as laid down in Art. 24, that is, that its
course is along the same path as the Centripetal Force of Gravitation,
that it is subject to the same law of intensity, which is inversely as
the square of the distance; and further (what is the most important at
this stage), that the combined effect of the pressure of two bodies is
equal to the product of their masses, then we shall have discovered that
which we set out to discover, viz. a complementary force to the
attractive force of Gravitation.

Unlike the centripetal force, however, the centrifugal force will be
purely a physical one, due to a purely physical medium, the Aether,
whose properties and motions can be accounted for on a physical, and not
on a hypothetical basis.

Further, as the planets are also electrified bodies (Art. 81), they too
will possess an electric field, and will generate electric waves, which
will also exert a centrifugal force upon all bodies upon which the waves
fall. So that, like the sun, the planets are not only the centre of a
centripetal force, which ever acts towards thei