The Luminiferous Ether:

The Luminiferous Ether : (I) Its Relation To The Electron And To A Universal Interstellar Medium; (II) Its Relation To The Atom. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.