Ch. 1. The ultimate challenge --
Ch. 2. Some early ideas on the brain and mind --
Ch. 3. Consciousness in animals --
Ch. 4. Probing the human psyche --
Ch. 5. Sleep and dreams --
Ch. 6. The evolution of the brain --
Ch. 7. Thinking and the events in the brain --
Appendix: Dr Miriam Rothschild FRS --
Appendix: Sir John Eccles FRS --
Appendix: Dr Donald Griffin.