While Pope proceeded against Watson he submitted to the piracies of Curll. His conduct once more betrayed that he was the author of the P. T. plot. Curll had all along persisted in printing the P. T. letters. He immediately seized the new letters in the quarto, and inserted them in his fifth volume of "Mr. Pope's Literary Correspondence." He was not content with usurping Pope's property. He insulted, defied, and accused him. Pope had the strongest motive in self-vindication to grapple with the charges of Curll, and he shrunk from the contest. He resented the infringement of his copyright by an indifferent person, and he could not willingly have endured to be despoiled by his mocking antagonist, and sit down quietly under the contumely and wrong. The bill filed against Watson discovers the cause of his forbearance. There we find that Pope in applying for an injunction was obliged to state that his quarto edition was the first publication of his letters "with his consent, direction, or approbation,"[116] and if he had filed a similar bill against Curll, the bookseller would have proved that he had purchased the P. T. edition, and that Pope had printed and sold it. Curll announced in September, 1735, that he had filed a bill against Smythe to compel the fulfilment of his contract, and he made Gilliver a party to the suit in consequence of his confession that Pope had purchased of him the old sheets of the Wycherley, and directed the rest of the P. T. collection to be printed to match them.[117] Smythe was a shadow who could not be reached. The facts remained, and Pope could not attempt to convict Curll of piracy without being himself convicted of having sold him the work. He had been worsted on this very point when he fought with his best weapon, the pen, and he did not dare to renew the conflict in a court of law where allegations could neither be passed over in silence, nor be met by evasions and quibbles. Any doubt that the motive for his toleration was fear was done away by his filing a bill against Curll the instant he pirated the Swift Correspondence which was entirely distinct from the P. T. transaction. Pope had shown earlier that he was afraid to join issue with Curll before a legal tribunal. Curll inserted an advertisement in "Fog's Journal" of July 26, 1735, in which he accused Pope of having printed the P. T. collection, and of telling falsehoods in self-defence. The proprietor of "Fog's Journal" was induced by a threat of prosecution to apologise for the insertion of the advertisement, and Curll immediately reprinted it in the second volume of Mr. Pope's Literary Correspondence, accompanied by a scornful account of Pope's interference. Pope did not venture to accept the taunting challenge. His vapouring ceased when he was dared to fight. He menaced the publisher of a newspaper, who would not brave a trial in a cause which was not his own, and tamely retreated before the real offender in person.