A key for Catholicks, : to open the jugling of the Jesuits, and satisfie all that are but truly willing to understand, whether the cause of the Roman or reformed churches be of God; and to leave the reader utterly unexcusable that after this will be a papist. The first part. Containing some arguments by which the meanest may see the vanity of popery; and 40. detections of their fraud ... With some proposals for a (hopeless) peace. The second part sheweth (especially against the French, and Grotians) that the Catholick Church is not united in any meerly humane head, either Pope or council.