Psychological Conceptions and Practical Results. When dealing with the question of the relation between William James’s pragmatism and his psychology, the usual answer consists in tracing back the pragmatist epistemology and theory of truth to the functional conception of mind which defines the various intellectual functions as instruments whose purpose is to make action intelligent. The aim of this paper is to outline another relation which often goes unnoticed. My contention is that we can find in James’s work a pragmatist conception of psychology itself as a science, which can be expressed in his formula about psychology being a “practical science of mind”. “Practical”, here, must be understood in two different but complementary meanings...