This is the first of Newman’s Anglican works to be presented in a fully annotated edition. Newman published the first two editions in 1836 and 1837 at the height of his career within the Oxford Movement. The third and last edition was published in 1877, when Newman had been a Roman Catholic for 32 years. It represents a dialogue between the Evangelical Anglican, Anglo-Catholic and Roman Catholic Newman. As such it is a critical work in understanding Newman’s development, as well as his impact on the larger Christian Church in his century. The text of this edition is based on the edition of 1889 (with obvious errors and misprints corrected), the edition to be seen through the press by Newman before his death in 1890. Its pagination is preserved in the margin alongside the present text to facilitate reference to the uniform edition of the collected works. The text is supplemented by an introduction and textual appendix which lists all the variant readings between the three editions of 1836, 1837 and the final edition.