London: John Macock, 1679. First edition. Pamphlet. Disbound. Title, introduction, text. The author examines a sermon by St Cyril, which is often used to validate the invocation of Saints within the Roman Catholic church. The author condemns the act of the Invocation of the Saints, as a Popish superstition. The title and last page are a little darkened and marked, the rest of the text is clean; the pages have been cropped close with slight loss to the marginal notes, the text is unaffected, it is loosely bound together. 1-39 pp. Wing B834.

Thomas Barlow (1607–8 October 1691) was a Church of England academic and clergyman, who became Bishop of Lincoln. He was strongly Calvinist and anti-Catholic, and was one of the last English Bishops to identify the Pope as the Antichrist. During the Popish Plot, he wrote much attempting to prove his theory. He quickly swore an oath of allegiance to the Catholic James II and on the accession of William and Mary was just as quick to vote that James had abdicated by leaving the country and swore a new oath to William and Mary.