The implicit canon, nearly realized by the contents of the second folio, comprises dramatic works written by Beaumont or Fletcher; either alone, together, or in collaboration with other playwrights. By this rule, likely, four plays should be excluded ("The Laws of Candy" by John Ford, "Wit at Several Weapons" by Middleton and Rowley, "The Nice Valour" by Middleton, and "The Coronation" by James Shirley), and three more extant plays should be included ("Barnavelt", "A Very Woman", and "Henry VIII"). "A Very Woman" was printed in a volume of Massinger's plays in 1655, while "Sir John van Olden Barnavelt" remained in manuscript until the 19th century. "Henry VIII" was first published in the Shakespeare First Folio of 1623.