Jean R. Soderlund describes and analyzes how Quakers in the Delaware Valley moved from an unthinking but extensive involvement in slavery in the late seventeenth century to a commitment to eradication of this evil among themselves before the end of the eighteenth century. . . . Taken together, the three variables [described by Soderlund] provide a powerful and persuasive framework within which to view the `Divided Spirit' that characterized the Quaker response to slavery between the 1680s and 1780s. --Owen S. Ireland, William and Mary Quarterly