Ratio Discipline: Or The Constitution Of The Congregational Churches is a book written by Thomas Cogswell Upham in 1829. The book is a comprehensive guide to the principles and practices of Congregationalism, a form of Protestant Christianity that emphasizes the autonomy of individual churches and their congregations. Upham's book provides a detailed analysis of the Congregationalist system of church governance, including the role of pastors, deacons,...