The Westminster Archivist, Grace Mullen, recently uncovered an interesting artifact. In 1934, a book review was published in The Globe of Toronto regarding a book by Dr. Adolf Keller entitled Karl Barth and Christian Unity. The review sparked a short series of letters to the editor between Walter Bryden, former professor at Knox College in Toronto, Canada, and John Murray, co-founder and professor of Systematic Theology at Westminster Theological Seminary about the theology of Karl Barth. The interaction has been reprinted in its entirety here with a present-day response by Rev. Dr. Carl Trueman.