What is the nature of the "cold breeze" which is so often experienced, not only at séances, but during very many psychic phenomena, both of the experimental and spontaneous types, in all parts of the world? Is it a physical breeze, or is it purely "psychical"? Could it be collected and analysed, as was suggested in the case of the cold breeze issuing from the scar on Eusapia Palladino's forehead? What is its source? And what is its object? On this subject alone much suggestive and valuable research might be undertaken.

Take the simple phenomena of raps. What produces them? What is the bond between the hand of the medium which makes a gesture in the direction of the table, and the table itself? What is the nature of the physical impact upon the table? Are these raps due to exteriorized vital force? If so, does this energy exude from the nerve termini, or is it connected only with the etheric body or double? Can these raps be controlled at will, or directed and controlled when the subject is under hypnosis? Can this energy be directed at will? Could it not impress delicate physical instruments? Might not a connection be thus established between these phenomena and the impressions of hands and faces, etc., occasionally seen in the presence of Eusapia and other mediums?

Then the phenomena of materialization! Here is a wide field for study indeed! How can such an organism be built up? Out of what materials is it constructed? What degree of density can be attained? What is the power which manipulates this matter? and what is the structure of the matter itself? How can will plastically mould matter in space? On what framework, so to speak, is the body constructed? What is the nature of the vital drain upon the medium and the sitters? What is the nature of the intelligence animating the materialized figure? What is the connection between so-called "thought-forms" and materialized phantoms?

These are but some of the questions which would suggest themselves, and call for solution when "psychics" is recognized as a legitimate science, as it surely will be one day. These are problems mostly on the physical plane; but the psychological problems are just as many and just as alluring! I have referred to some of these elsewhere; and would content myself with again saying, that only when the facts of psychical research are recognized will their real, scientific study begin.

FOOTNOTES:

[1] The copy of this book in my possession is the copy once owned by Dr. Hodgson—having his name in the front, and the date, April 1881. This passage is marked with a thick red pencil stroke, showing the importance which Dr. Hodgson attached to the point here made.

[2] Might not this account for the fact that trance or "spirit control" practically never occurs during the hours of sleep? Even "obsessed" patients find peace and rest during their sleeping hours. Is this not, in all probability, due to the fact that the mind is, at such times, forced in upon itself; as it were—instead of being directed outwards—away from the centre of being, as it is daily, during conscious life? It is probably nature's protective device—ensuring the stability and integrity of the psychic "self."

[3] Kilner, The Human Atmosphere. I myself have conducted a number of interesting experiments in this direction, which I hope to make public at a later date.

[4] Townsend, Facts in Mesmerism, p. 215.

[5] Metaphysick, bk. iii. ch. v.