By May of 1727 and with no visible sign of fatigue he took on a new contender; this time it was John Rogers, canon in ordinary to the Prince of Wales. At the height of their debate, in late summer, Collins made practical enquiries about methods to prolong and intensify its give-and-take. Thus, in a note to his friend Pierre Des Maizeaux, he said: "But I would be particularly informed of the success and sale of the Letter to Dr Rogers; because, if it could be, I would add to a new edition thereof two or three as sheets; which also might be sold separately to those who have already that Letter." For all his militant polemic, he asked only that his "Adversaries" observe with him a single rule of fair play; namely, that they refrain from name-calling and petty sniping. "Personal matters," he asserted, "tho they may some times afford useful remarks, are little regarded by Readers, who are very seldom mistaken in judging that the most impertinent subject a man can talk of is himself," particularly when he inveighs against another.[5] If Collins had been made to look back over the years 1676-1729, he probably would have summarized the last twenty with a paraphrase of the Popean line, "This long controversy, my life." For several years and in such works as _Priestcraft in Perfection_ (1710) and _A Discourse of Free-Thinking_ (1713), he was a flailing polemicist against the entire Anglican hierarchy. Not until 1724 did he become a polished debater, when he initiated a controversy which for the next five years made a "very great noise" and which ended only with his death. The loudest shot in the persistent barrage was sounded by the _Grounds and Reasons_, and its last fusillade by the _Discourse concerning Ridicule and Irony in Writing_.[6] During those five years Collins concentrated upon a single opponent in each work and made it a rhetorical practice to change his "Adversary" in successive essays. He created in this way a composite victim whose strength was lessened by deindividualization; in this way too he ran no risk of being labelled a hobbyhorse rider or, more seriously, a persecutor. Throughout the _Grounds and Reasons_ he laughed at, reasoned against, and satirized William Whiston's assumption that messianic prophecies in the Old Testament were literally fulfilled in the figure and mission of Jesus. Within two years and in a new work, he substituted Edward Chandler, Bishop of Coventry and Lichfield, for the mathematician. It need not have been the Bishop; any one of thirty-four others could have qualified for the role of opponent, among them people like Clarke, and Sykes, and Sherwood, and even the ubiquitous Whiston. Collins rejected them, however, to debate in the _Scheme_ with Bishop Chandler, the author of _A Defence of Christianity from the Prophecies of the old Testament_, with one who was, in short, the least controversial and yet the most orthodox of his many assailants.