Murray, Archbishop of Dublin. Father MacHale continued his lectures at Maynooth until 1820, when he was nominated professor of theology. About this period he commenced a series of letters to the Dublin Journal, signed "Hierophilus", vigorously attacking the Irish Established Church's system of religious education in schools. In 1825, Pope Leo XII appointed him titular bishop of Maronia, and coadjutor bishop to Dr. Thomas Waldron, Bishop of Killala. After his consecration in Maynooth College chapel, he devoted himself to his sacred duties. He preached Irish and English sermons, and superintended the missions given in the diocese for the Jubilee of 1825. The following year, MacHale joined Bishop Doyle in denouncing the proselytizing Kildare Street Society of Dublin. MacHale attended the annual meeting of the Irish bishops, and gave evidence at Maynooth College before the Parliamentary Commissioners then inquiring into the condition of education in Ireland. The Catholic hierarchy's policy in the following decades was to ensure that Irish primary schools for Catholic children were run by Catholics, while the Dublin administration wanted all such schools to be run on a mixed-faith basis. The officials felt that two parallel systems would be too expensive and socially divisive, but the hierarchy held this would result in a default system based on the English version of history that had often been anti-Catholic since 1570. Emancipation campaign, 1820s About this time he also revised a theological manual On the Evidences and Doctrines of the Catholic Church, afterward translated into German. With his friend and ally, Daniel O'Connell, MacHale took a prominent part in the important question of Catholic Emancipation, impeaching in unmeasured terms the severities of the former penal code, which had branded Catholics with the stamp of inferiority. During 1826 his zeal was omnipresent; "he spoke to the people in secret and public, by night and by day, on the highways and in places of public resort, calling up the memories of the past, denouncing the wrongs of the present, and promising imperishable rewards to those who should die in the struggle for their faith. He called on the Government to remember how the Act of Union in 1800 was carried by William Pitt the Younger on the distinct assurance and implied promise that Catholic Emancipation, which had been denied by the Irish Parliament, should be granted by the Parliament of the Empire." 1830s In two letters written to the Prime Minister, Earl