Henry Edward Cardinal Manning wrote this work to explain 'Why I Became a Catholic'. Some years ago, being for many days on a Journey without work or books, I thought that -it might be a fair time to write down, in fewest words, the reasons for what I believe. The thoughts were written as the crow flies, over wide lands and a long flight, without deviation from the straight line. Much was, therefore, omitted that might be said, but the continuity and coherence. of the reasoning were my only aim. They who will do more solidly what I have done so slightly wilt deserve and receive my thanks. The text remains as it was written. The references have been since added.