In the following year he issued two translations, the memoirs of Ferdinand VII and a biography of Don Agustín de Iturbide.
During this period he contributed many articles on foreign policy to the Morning Chronicle, and edited The Catholic Journal, a weekly newspaper which ran for one year only.
Further travels in Hungary, Wallachia, Serbia, and Turkey furnished him with material for a new book in 1835, called A Steam Voyage down the Danube, which was so successful that it was translated into French and German.
Of its first beginnings Cardinal Wiseman wrote: "It was in 1836 that the idea of commencing a Catholic Quarterly was first conceived by the late learned and excellent Mr. Quin, who applied to the illustrious O'Connell and myself to join in the undertaking".
After two numbers he resigned the editorship, being unable to devote so much time and trouble without financial advantage, but continued to contribute articles to succeeding issues.