enerated in the Aether by the electro-magnetic body,
the sun. Again, in order to confirm the existence of these Aether
currents that exist in space, not only those generated by the sun, but
also by all the other electro-magnetic bodies, as all the planets (Art.
88), we will consider the working of the same upon the satellites of
those planets which possess them.

The Earth we know has one satellite, the moon, Mars has two satellites,
Phobos and Deimos, Jupiter has five satellites, Saturn has eight
satellites, while up to the present Uranus has been found to possess
four, and Neptune one. There is, however, little doubt but that both
Uranus and Neptune possess more than those already discovered, as it is
inconceivable that Jupiter and Saturn, which are nearer to the sun,
should possess a greater number of satellites by which the nights of the
respective planets are illuminated, while the further planets, which
need the increased lighting, because of the decreased intensity of the
aetherial light waves at the increased distance, possess apparently a
less number of satellites, and therefore less illumination for their
respective nights.

But what have these satellites to teach us as to the existence of the
electro-magnetic aetherial currents that circulate round the planets? We
have to apply a similar course of reasoning to the planets, as we have
done in the case of the sun. If the sun is an electro-magnetic body, by
its axial rotation it generates rotating Aether currents, and those
Aether currents partake of the same rotation as the revolving body, that
is, from west to east. In a like manner each planet, being an
electro-magnet, generates electro-magnetic aetherial currents which also
possess the same rotation as the planetary body which gives rise to
them.

So that if the planets rotate on their axes from east to west, the
Aether currents will also rotate from east to west, but if the rotation
of each planet is from west to east, then the rotation of the Aether
currents associated with each planet will also be from west to east,
with the result that each satellite will be carried round its primary
planet by the circulating Aether currents in exactly the same way as the
planet rotates on its axis.

Now if this is the case, then we have further evidence of the existence
of the circulating electro-magnetic Aether currents, not only those
associated with the sun, but those also associated with each of the
planets, as