""Romanism and Rationalism as Opposed to Pure Christianity"" is a book written by John Cairns in 1863. The book is a critical analysis of two major movements that were prevalent during the 19th century - Romanism and Rationalism. Cairns argues that both of these movements are opposed to the principles of pure Christianity.The book is divided into two parts, with the first part focusing on Romanism and the second part on Rationalism. In the first part,...