2. ANALYTICAL THEORY OF MORPHOGENESIS 76 α. THE DISTRIBUTION OF MORPHOGENIC POTENCIES 76 Prospective Value and Prospective Potency 76 The Potencies of the Blastomeres 79 The Potencies of Elementary Organs in General 80 Explicit and Implicit Potencies: Primary and Secondary Potencies 83 The Morphogenetic Function of Maturation in the Light of Recent Discoveries 85 The Intimate Structure of Protoplasm: Further Remarks 88 The Neutrality of the Concept of “Potency” 89 β. THE “MEANS” OF MORPHOGENESIS 89 β′. The Internal Elementary Means of Morphogenesis 90 Some Remarks on the Importance of Surface Tension in Morphogenesis 91 On Growth 93 On Cell-division 94 β″. The External Means of Morphogenesis 95 The Discoveries of Herbst 96 γ. THE FORMATIVE CAUSES OR STIMULI 99 The Definition of Cause 99 Some Instances of Formative and Directive Stimuli 102 δ. THE MORPHOGENETIC HARMONIES 107 ε. ON RESTITUTIONS 110 A few Remarks on Secondary Potencies and on Secondary Morphogenetic Regulations in General 110 The Stimuli of Restitutions 113 3. THE PROBLEM OF MORPHOGENETIC LOCALISATION: THE THEORY OF THE HARMONIOUS-EQUIPOTENTIAL SYSTEM--FIRST PROOF OF THE AUTONOMY OF LIFE 118 The General Problem 118 The Morphogenetic “System” 119 The “Harmonious-equipotential System” 122 Instances of “Harmonious-equipotential Systems” 126 The Problem of the Factor *E* 132 No Explanation offered by “Means” or “Formative Stimuli” 132 No Explanation offered by a Chemical Theory of Morphogenesis 134 No Machine Possible Inside the Harmonious Systems 138 The Autonomy of Morphogenesis proved 142 “Entelechy” 143 Some General Remarks on Vitalism 145 The Logic of our First Proof of Vitalism 146