FOOTNOTES:
[5] Note the insensibility.—W.W.S.
[6] Note.—In future I shall borrow the term "Etheric Double" from the Theosophists and use it instead of the rather cumbrous phrase "Quasi-physical replica." I do not think that the term Etheric Double is a good one, but it is in common use, and I will adopt it until some better word is suggested.