Introduction; Part 1 The Nature and Knowledge of Essential Being; Chapter 1 Fact and Essence; Chapter 2 Naturalistic Misconstructions; Part 2 The Fundamental Phenomenological Outlook; Chapter 3 The Thesis of the Natural Standpoint and its Suspension; Chapter 4 Consciousness and Natural Reality; Chapter 5 The Region of Pure Consciousness; Chapter 6 The Phenomenological Reductions; Part 3 Procedure of Pure Phenomenology in Respect of Methods and Problems; Chapter 7 Preliminary Considerations of Method; Chapter 8 General Structures of Pure Consciousness; Chapter 9 Noesis and Noema; Chapter 10 Theory of the Noetic-Noematic Structures: Elaboration of the Problems; Part 4 Reason and Reality (Wirklichkeit); Chapter 11 Noematic Meaning and Relation to the Object; Chapter 12 Phenomenology of the Reason; Chapter 13 Grades of Generality in the Ordering of the Problems of the Theoretic Reason;