A discourse on my Lord Arch-Bishop of Canterbury's and my Lord Bishop of London's letters to the clergy touching catechising, and the sacrament of the Supper : with what is required of churchwardens and ministers in reference to obstinate recusants : also a defence of excommunication, as used by the Church of England against such : preached March the 9th and 16th in the parish church of St. Swithins /