Vol. 3: Notes appendixes, apparatus, general index.
v. 1. Introduction: The Intellectual Context / Gerald E. Myers -- Introduction: The Historical Context / Rand B. Evans -- The Principles of Psychology -- The Scope of Psychology -- The Functions of the Brain -- On Some General Conditions of Brain-Activity -- Habit -- The Automaton-Theory -- The Mind-Stuff Theory -- The Methods and Snares of Psychology -- The Relations of Minds to Other Things -- The Stream of Thought -- The Consciousness of Self -- Attention -- Conception -- Discrimination and Comparison -- Association -- The Perception of Time -- Memory --
v. 2. Sensation -- Imagination -- The Perception of 'Things' -- The Perception of Space -- The Perception of Reality -- Reasoning -- The Production of Movement -- Instinct -- The Emotions -- Will -- Hypnotism -- Necessary Truths and the Effects of Experience --
v. 3. Appendixes -- A Note on the Editorial Method -- The Text of The Principles of Psychology -- Apparatus