The moment he began to canvass for the vacant seat in the academy, a violent cabal was formed to oppose him. Maurepas, secretary of state, an excellent man, but narrow-minded, was the moving spring of the opposition. He pat forward a Theatin monk, named Boyer, as his agent. This man declared that the deceased cardinal's empty chair could only be filled properly by a bishop. He found some difficulty in finding a prelate who chose to undertake the invidious part; one was at last found, and Voltaire lost his election. The same scene was renewed when another vacancy recurred, during the following year. In some degree the poet was consoled by the success of the tragedy of "Mérope." The audience were transported by enthusiasm; they perceived the author in a box--they insisted on his coming forward. The young and beautiful duchess de Villars was with him. She was called upon to embrace the poet; at first she was embarrassed by the singular part she was called on to act, but, recovering herself, obeyed the call of the pit with the grace that distinguished a high-born Frenchwoman. Voltaire might well desire to achieve success with an audience of his countrymen, when such were the tokens he received of triumph. The king of Prussia, meanwhile, having exhausted his finances by war, and gained two provinces, found it eligible to conclude a peace with Maria Theresa; a peace, detrimental to the interests of France, which was thus left to carry on the war single-handed. It became matter of policy to induce Frederic to infringe a treaty scarcely signed. The duke de Richelieu requested Voltaire to be the negotiator. Again his mission was secret. He pretended to renounce his country, disgusted by the cabal carried on by Boyer against him, and he had the appearance of applying to Frederic for refuge and defence against the injustice he met in his native country. Voltaire's own account of this negotiation is written in his usual jesting, sarcastic style; he made a joke of the bishop, his successful rival; and when Frederic answered by a deluge of pleasantries on the subject, he took care to make his letters public. The bishop of Mirepoix complained to the king that he was made to pass for a fool at foreign courts; but Louis XV. replied that it was a thing agreed upon, and that he must not mind it. Voltaire remarks that this reply was opposed to Louis's usual character, and that it appeared extraordinary. But the king probably spoke in the innocence of his heart, announcing a mere fact, that the bishop's reputation for talent was to be sacrificed for the good of the state. Indeed, there is a letter from Voltaire to his immediate employer, Amelot, secretary for foreign affairs, which shows that he by no means felt easy with regard to the light in which Louis might view his conduct, and excuses the style of his correspondence with Frederic. "There are in his notes and in mine," he writes, "some bold rhymes, which cannot hurt a king, though they may an individual.