A profitable dialogue for a peruerted papist. Or a little labour of a lay men : tending to the profit of a peruerted Papist: namely, by laying open vnto him his ovvne errour, in beleeuing that the Church of Rome cannot erre. Composed in dialogue maner, as it were betweene a simple lay man, and certayne graue diuines, and published onely for the benefit of the lay Papist. VVritten by R.M. gent. and student in Diuinity.