Title: Vertumnus Romanus, Or, A Discovrse Penned by a Romish Priest, wherein he endevours to prove that it is lawfull for a Papist in Eng- land to go to the Protestant Church, to receive the Communion, and to take the Oathes both of Allegiance and Supremacie. To which are adjoyned Animadversions in the margin by way of Antidote against those places where the rankest poyson is couched