""Declarations and Letters on the Vatican Decrees, 1869-1887"" is a book written by Ignaz von Dollinger and published in 1891. The book is a collection of letters and declarations written by von Dollinger, a German theologian and historian, in response to the Vatican decrees of 1869-1870. These decrees, issued by the First Vatican Council, declared the infallibility of the Pope and the superiority of the Roman Catholic Church over all other religions.Von...