- Hegel: A Re-Examination (Muirhead Library of Philosophy)
- Meinongs Theory of Objects & Values (Modern Revivals in Philosophy)
- Wittgenstein: A Critique (International Library of Philosophy)
- Plato: The written and unwritten doctrines (International library of philosophy and scientific method)
- Ascent to the Absolute: Metaphysical Papers and Lectures (Muirhead Library of Philosophy)