A summary discourse concerning the work of peace ecclesiasticall, : how it may concurre with the aim of a civill confederation amongst Protestants: presented to the consideration of my Lord Ambassadour Sr. Thomas Rovv, &c. at Hamburg in the yeare MDCXXXIX. By Mr. John Dury, a faithfull and indefatigable solicitour of the gospel of peace amongst Protestants: now put to the presse for the information of such as are able to countenance, and willing to help forward the negotiation of some issue.