“To a certain extent, and up to a certain point, it is possible to account for the astonishing case of the Blind Spot by means of well-known psychological principles. Hallucinations will cover a great deal of ground. “But we feel that our personal experiences, in witnessing the interior of the Thomahlia cannot be thus explained away. Our accounts tally too exactly; and we are not subject to group hypnosis. “To explain this we believe a new hypothesis is called for. We submit that what we saw was not unreal. Assuming that a thing is real or unreal, and can never be in a third state which is neither one nor the other, then we should have to insist that what we saw was REAL. “We stand ready and prepared to accept any theory which will fit all facts, not merely a portion.” Again refraining from any comment we pass on to the more exhaustive opinion of Sir Henry Hodges. Inasmuch as this seems to coincide very closely with the hypothesis of Professor Holcomb, and as the reputation of Sir Henry is a thing of weight, we are quoting him almost verbatim: “There is a well-known experiment in chemistry, wherein equal quantities of water and alcohol are mixed. Let us say, a pint of each. Now, the resulting mixture ought to be a quart; but it is not. It is somewhat less than a quart. “Strange, indeed, to the novice, but a commonplace to every student of the subject. It is strange only that, except for Dr. Holcomb and this man Avec, science has overlooked the stupendous significance and suggestion of this particular fact. “Now, consider another well-known fact: No matter how you try you cannot prevent gravity from acting. It will pull every object down, regardless of how you try to screen it from the earth. “Why? Because gravity penetrates all things. Again, why? Why should gravity penetrate all things? “The answer is, because gravity is a function of the ether. And the ether is an imponderable substance, so impalpable that it passes right through all solids as though they were not there. “These are two highly suggestive points. They show us, first, that two substances can exist within the space formerly thought to be completely filled by one. Second, they show that ALL substances are porous to the ether. “Very well. Bear in mind that we know nothing whatever directly about the ether; our knowledge is all indirect. Therefore-- “It may be that there is more than one ether! “Conceive what this means. If there were another ether, how could we become aware of it? Only through the medium of some such phenomenon as the Blind Spot; not through ordinary channels. For the ordinary channels are microscopes and test-tubes, every one of which, when traced to the ultimate, is simply a concrete expression of THE ONE ETHER WE KNOW! “In the nature of the case our five senses could never apprehend a second ether.