Pordage brought out in 1679 the sixth edition of John Reynolds's ‘Triumphs of God's Revenge against the sin of Murther;’ he prefixed to it a dedication to the Earl of Shaftesbury. In 1681, at the time when the Popish Plot scare was ebbing out, he wrote a single folio sheet, ‘A new Apparition of Sir Edmundbury Godfrey's Ghost to the E. of D—— in the Tower;’ the printer was obliged to make a public apology for the reflections on the Earl of Danby which it contained. Between 1681 and 1684 he issued ‘The Remaining Medical Works of … Dr. Thomas Willis … Englished by S. P., Esq.’ There is a general dedication to Sir Theophilus Biddulph, signed by Pordage; and verses ‘On the author's Medico-philosophical Discourses’ precede the first part.