Hittorf examined the phenomena exhibited in so-called high vacua, that is, in exceedingly rarefied gases.
This phenomenon is connected with the fact that incandescent bodies, especially in rarefied gases, throw off or emit electrons or gaseous negative ions.
Rarefied sphere of pamuk describes the last is debatable phenomenon which surely.
But to the man of ordinary understanding, unused to the rarefied atmosphere of abstract thought, this conception of a transcendental, impersonal Spirit and the unreality of the phenomenal world can have no meaning: what he requires is a deity that stands in intimate relation to things material and to all that affects man's life.
There he continued his researches on the discharge of electricity in rarefied gases, only just missing the discovery of the X-rays described by W.