First published in 2002. This is Volume XV of seventeen in the Philosophy of Mind and Psychology series. The Muirhead Library of Philosophy was designed as a contribution to the History of Modern Philosophy under the heads: first of Different Schools of Thought-Sensationalist, Realist, Idealist, Intuitivist; secondly of different Subjects-Psychology, Ethics, Aesthetics, Political Philosophy, Theology. Written in 1976, this is a collection of essays by a number of well-known philosophers who were invited to write on whichever philosophical issue relating to psychical research interested them most.

This is Volume I of seven in a series on the Philosophy of Religion and General Philosophy. Originally published in 1953, this is a collection of selected essays looking at Psychical Research to philosophy, arguments around the validity of a personal God and also looking at afterthoughts at the time of the Cold War.

The more than 50 articles, essays, and reviews collected here for the first time were published by James over a span of some 25 years. The record of a sustained interest in phenomena of a highly controversial nature, they make it amply clear that James's work in psychical research was not an eccentric hobby but a serious and sympathetic concern.