"I have seen," says M. Le Roi Sunderland, himself a preacher, [_Zion's Watchman_, New York, Oct. 2, 1842,] "persons often 'lose their strength,' as it is called, at camp-meetings, and other places of great religious excitement; and not pious people alone, but those also who were not professors of religion. In the spring of 1824, while performing pastoral labour in Dennis, Massachusetts, I saw more than twenty people affected in this way. Two young men, of the name of Crowell, came one day to a prayer meeting. They were quite indifferent. I conversed with them freely, but they showed no signs of penitence. From the meeting they went to their shop, (they were shoemakers,) to finish some work before going to the meeting in the evening. On seating themselves they were both struck perfectly stiff. I was immediately sent for, and found them sitting paralysed [he means cataleptic] on their benches, with their work in their hands, unable to get up, or to move at all. I have seen scores of persons affected the same way. I have seen persons lie in this state forty-eight hours. At such times they are unable to converse, and are sometimes unconscious of what is passing round them. At the same time they say they are in a happy state of mind." These persons, it is evident, were thrown in to one of the forms of trance through their minds being powerfully worked upon; with which cause the influence of mutual sympathy with what they saw around them, and perhaps some physical agency, co-operated. The following extract from the same journal portrays another kind of nervous seizure, allied to the former, and produced by the same cause, as it was manifested at the great revival, some forty years ago, at Kentucky and Tennessee. "The convulsions were commonly called 'the jerks.' A writer, (M'Neman,) quoted by Mr Power, (Essay on the Influence of the Imagination over the Nervous System,) gives this account of their course and progress:-- "'At first appearance these meetings, exhibited nothing to the spectator but a scene of confusion, that could scarcely be put into language. They were generally opened with a sermon, near the close of which there would be an unusual outcry, some bursting out into loud ejaculations of prayer, &c.