thermal field and a magnetic field, both having as their axis the line
connecting the two poles. Each of them spreads out in a direction at
right angles to this fine. Obviously, therefore, it is in this radial
direction that the transformation of the electrical into the
thermo-magnetic condition of space must take place.

This picture of the electro-thermo-magnetic happening, as regards its
direction, is in complete accord with the result obtained (as indicated
earlier) by the mathematical treatment of high-frequency phenomena.
Once more we see that quite primitive observations, when properly read,
lead to findings for which scientific thought had to wait until they
were forced on it by the progress of experimental technique - as even
then science was left without a uniformly valid picture of the dynamic
behaviour of electricity.

Further, we can now see that when we apply electricity to practical
purposes, we are in fact seldom using electricity itself, but other
forces (that is, other combinations of gravity and levity) which we
make effective by making electricity disappear. The same is true of
most of the methods of measuring electricity. As a rule, the force
which sets the instrument in motion is not electricity but another
force (magnetism, heat, etc.) which appears in the place of the
vanishing electricity. Thus the so-called intensity of an electric
current is actually the intensity with which the electricity in
question disappears! Electricity serves us in our machines in the same
way that food serves a living organism: it gets itself digested, and
what matters is the resulting secondary product.

Just as alterations in the electrical condition of space give rise to
the appearance of a magnetic field, any alteration of the magnetic