 In the last chapter of his book Broad presents a taxonomy of no less than seventeen different theories which are “possible theoretically on the relation between Mind and Matter” (1925, p. 607). By a process of elimination Broad arrives at a more wieldy number of theories. Two of the remaining rivalling theories are Physicalism—in Broad’s terminology, “Mechanism”—and Emergentism. Let us now take a closer look at his case for Emergentism.