A plea for the non-conformists: shewing the true state of their case: And how far the Conformist's Separation from the Church of Rome, for their Popish Superstitions, &c. introduc'd into the Service of God, justifies the Non-Conformist's Separation from them. In a letter to Dr. Benjamin Calamy, on his Sermon (call'd Scrupulous Conscience) inviting hereto. To which is added, a parallel scheme of the pagan, papal, and Christian rites and ceremonies: and a narrative of the sufferings underwent by Thomas De Laune. With a preface by the author of the Review.