Caird wrote about the philosophy of religion throughout his academic life. He gave the Gi ord lectures at the University of St Andrews in the 1890-91 and 1891-2 sessions, and they were published as e Evolution of Religion (Caird 1893). He also gave the Gi ord lectures in the 1900-1901 and 1901-2 sessions at the University of Glasgow, and they were published as e Evolution of eology in the Greek Philosophers (1904). His other major books in this area were e Social Philosophy and Religion of Comte (1885) and particularly his Lay Sermons and Addresses (1907). Relevant shorter pieces include “Christianity and the Historical Christ” (1897), “Anselm’s Argument for the Being of God – Its History and What It Proves” (1899) and “St Paul and the Idea of Evolution” (1903-4), as well as the more recently published “Reform and Reformation” (Caird 2005a) and “Essay on Mysticism” (2005c).