The Chinese Boy and Girl - Describing Chinese children's nursery rhymes, games, toys, and tales, by Isaac Taylor Headland (1901). - http://www.romanization.com/books/childrensgames/
Picking Who Is "It" - A collection of the folk rhymes that American children chant while choosing "it" in games; part of a larger site on children's games. - http://www.gameskidsplay.net/who_is_it/picking_it.htm