higher space speculation.

One hypothesis advanced to explain gravitation assumes the existence
of a constant hydrostatic pressure transmitted through the ether. A
steady flow of ether into every electron in a gravitating system of
bodies would give rise to forces of attraction between them, varying
inversely as the square of the distance, according to Newton's law.
But in order to avoid the conception of the continual destruction
and creation of ether, it is necessary to assume a steady flow
through every electron between our universe and the greater universe
of which it is assumed to form a part Now because the electrons, in
order to receive this flow, must lie on the boundary of this greater
universe, the latter must be four-dimensional. Every electron, in
other words, must be the starting point of a pathway into--and a
terminal point out of--four-dimensional space. Here we have another
familiar higher space concept.


THE ETHER OF SPACE

The ether of space, because it has at last found entrance, must be
given a grudging hospitality in these pages, even though the
mysterious stranger prove but a ghost. The Relativists would have it
that with the acceptance of their point of view the ether may be
eliminated; but if they take away the ether, they must give us
something in its stead. In whatever way the science of the future
disposes of this problem, it must take into account the fact of
light transmission. On the theory that the ether is an elastic solid
of amazing properties, in which the light waves vibrate _transversely_
to their direction, it assists the mind to think of the ether as