The small cord connecting the E.D. with the physical body is also in accordance with his observations.
On the whole then I think it fair to claim that this case fits in admirably with the experimental work I have quoted.
There is one other source of information which may profitably be considered here, namely the statements of the clairvoyants and of the Occultists.
I hope that the criticisms which I have been moved to make about the Occultists in preceding passages have been sufficiently stringent to clear me of any suspicion of being unduly credulous or over-ready to accept their statements as authoritative.
There are many things in their methods and their teachings which excite my distrust and antipathy.
None the less I think it foolish to ignore every statement which happens to be supported by, or to form part of, Occult doctrine.
I think it highly probable for instance that clairvoyant descriptions of facts concerning the Etheric Double are often reliable.
We have seen that the whole question of its study is probably a matter of observing, directly or indirectly, by ultra-violet light. We also have reason to suppose that the retina of the eye can be rendered abnormally sensitive to light of this frequency by artificial means.
But if such abnormal retinal sensibility can be induced artificially, it is very probable that it may sometimes occur naturally.
Hence, if the E.D. actually exists, as the evidence undeniably suggests, it is not only possible but probable that certain people will be able to see it without invoking artificial aid.