Excerpt from the Autobiography of Abraham Snethen (ca. 1814)

“[N]ow I left for cincinati again and on my way heard of the New light Presbytarians…and heard all sort of bad reports a bout them they said that…they would fall and lay for hours and…others jerk backwards and forwards with somuch force that a ladys hair wold crack like a wip….”

Joseph Badger’s “Account of the Strange Exercise called the Jirks” (November 1826)

“I saw several young ladies…, who began to be uncommonly exercised…. It appeared to mortify and embarrass them very much, when they had ‘the power’ as it was called…. [T]heir shoulders would be seized with violent and sudden convulsions, the neck, also, would be affected with spasms, which threw back the head in a frightful manner….”