Professor Oesterreich, in his richly documented study of the subject has pointed out that, while belief in diabolic possession sharply declined during the nineteenth century, belief in possession by departed spirits became, during the same period, much more common. Thus, neurotics who, at an earlier epoch, would have attributed their malady to devils, were inclined, after the rise of the Fox Sisters, to lay the blame on the discarnate souls of evil men or women. With the recent advances in technology, the notion of possession has taken a new form. Neurotie patients often complain that they are being influenced, against their will, by some kind of radio messages transmitted by their enemies. The Malicious Animal Magnetism which haunted poor Mrs Eddy’s imagination for do many years has now been transformed into Malicious Electronics. — The Devils of Loudun by Aldous Huxley