According to Sir Oliver Lodge the fact that electricity possesses mass or inertia has now passed out of the hypothetical stage into the realm of fact and experiment. In his Romanes Lecture recently published, he states, page 4: “My first thesis is that an electric charge possesses the most fundamental and characteristic property of matter, viz. mass or inertia; so that if any one were to speak of a milligramme or an ounce or a ton of electricity, though he would certainly be speaking inconveniently, he might not necessarily be speaking erroneously.”

Now in view of the identity that exists between Aether and electricity, as proved by Hertz' experiments, the only logical conclusion that can be arrived at is, that Aether must also possess mass and inertia. So that the most recent experiments in relation to electricity confirm the theory of the Aether presented in this work, viz. that it also possesses mass and inertia, otherwise we should have a massless medium being composed of electrons which possess mass, and that would be a violation of all experience, and therefore an unphilosophical statement.