Malcolm Magoun Ferguson, Mr Hyde—and Seek (1950)
“ June 12, 1949—This morning I visited Chadwick, telling him what appears here. His advice to me was: "Your best bet is to find some action which will fit all the various theories about poltergeists, since you are concerned with sure counteraction rather than theorizing. You must apply this action when the poltergeist is dominant, and in such a way that Eliza is done neither bodily nor mental harm. You must surprise the poltergeist, confronting him as strongly as possible at the moment of his greatest aggression. And you must do so with something as opposite in all respects as possible." ”
