""The Catholic Church: Its Nature, Constitution And Privileges: With A Few Remarks On Some Of The Consequent Duties Of Christians"" is a book written by Joseph Oldknow in 1839. The book provides a comprehensive description of the Catholic Church, its nature, and its constitution. It also highlights the privileges that come with being a member of the Church. In addition, Oldknow discusses the duties that Christians have as members of the Catholic Church...