Scientific Thought: A Philosophical Analysis of some of its fundamental concepts

Religion, Philosophy and Psychical Research: Selected Essays

Ethics and the History of Philosophy: Selected Essays

The Mind and its Place in Nature

The Mind and its Place in Nature

Religion, Philosophy and Psychical Research: Selected Essays

C. D. Broad: Key Unpublished Writings

Lectures on Psychical Research (Routledge Revivals): Incorporating the Perrott Lectures Given in Cambridge University in 1959 and 1960