I suppose that it is meant that the space is the conception of something in nature.

Accordingly if the space of physical science is to be called conceptual, I ask, What in nature is it the conception of?
For example, when we speak of a point in the timeless space of physical science, I suppose that we are speaking of something in nature.

If we are not so speaking, our scientists are exercising their wits in the realms of pure fantasy, and this is palpably not the case.

This demand for a definite Habeas Corpus Act for the production of the relevant entities in nature applies whether space be relative or absolute.

On the theory of relative space, it may perhaps be argued that there is no timeless space for physical science, and that there is only the momentary series of instantaneous spaces.
An explanation must then be asked for the meaning of the very common statement that such and such a man walked four miles in some definite hour.