Incidentally the movement created a kind of contagious hysteria which naturally multiplied the phenomena and made detached and critical attitudes unduly difficult. For reasons already touched upon, America has been strongly predisposed to phases of public opinion which in their intensity and want of balance have the generally accepted characteristics of hysteria. Some of them have been religious, great awakenings, revivals and the like. These in their more extreme form have been marked by trances, shoutings and catalepsy and, more normally, by a popular interest, strongly emotionalized, which may possess a real religious value. Other religious movements have centered about the second coming of Christ and the end of the world. Many of these peculiar excitements have been political. The whole offers the psychologists a fascinating field and awaits its historian.[70] Yet the result is always the same. The critical faculty is for the time in abeyance; public opinion is intolerant of contradiction; imposture is made easy and charlatans and self-appointed prophets find a credulous following. Movements having this genesis and history are in themselves open to suspicion. [Footnote 70: Sidis has a resume of Social Epidemics in part three of his work on the "Psychology of Suggestion."] _It Crosses to England and the Continent_ The American interest in Spiritualism from 1848 to 1852 belongs distinctly to this region. The Fox sisters have been generally discredited, but what they began carried on. In 1852 a Mrs. Hayden and a little later a Mrs. Roberts introduced raps and table turnings to England. There, and more particularly on the Continent, Spiritualism met and merged with a second line of development which in turn reacted upon American Spiritualism, and, in America, released movements on the surface wholly unrelated to Spiritism. In France to a degree and in Germany strongly Mesmerism lent itself to spiritistic interpretations. I quote Podmore, who is commenting upon the trance utterances of a Mrs. Lindquist: "It is to be noted that the ascription of these somnambulic utterances to spirit intelligences was in the circumstances not merely easy but almost inevitable. The entranced person was in a state obviously differing very widely from either normal sleep or normal wakefulness; in the waking state she herself retained no recollection of what happened in the trance; in the trance she habitually spoke of her waking self in the third person, as of some one else; the intelligence which manifested in the trance obviously possessed powers of expression and intellectual resources in some directions far greater than any displayed by the waking subject. Add to this that the trance intelligence habitually reflected the ideas in general and especially the religious orthodoxy of her interlocutors; that on occasion she showed knowledge of their thoughts and intentions which could not apparently have been acquired by normal means; that she was, in