

CHAPTER 



I. The Problem 



CONTENTS 



PAGE 



The Characteristics of the Organic Individual; Unity and 

 Order in the Life of the Individual; Reproduction and 

 Individuation; Metabolism and Protoplasm; Terminology. 



II. Theories of Organic Individuality 21 



Theoretical Review and Critique; A Dynamic Conception of 

 the Organic Individual. 



III. Metabolic Gradients in Organisms 50 



Susceptibility Gradients in Animals and Plants; Further 

 Physiological Evidence for the Existence of Metabolic Gra- 

 dients; Embryological Evidence for the Existence of Axial 

 Metabolic Gradients; Developmental Gradients in Agamic 

 and Experimental Reproduction; Conclusion. 



IV. Physiological Dominance in the Process of Indi- 

 viduation 88 



The Experimental Material; The Independence of the Apical 

 Region; Dominance and Subordination in Experimental 

 Reproduction; The Reconstitution of an Individual from an 

 Isolated Piece; Some Modifying and Limiting Factors in 

 Animal Reconstitution; Conclusion. 



V. The Range of Dominance, Physiological Isolation, 

 AND Experimental Reproduction 127 



Experimental Control of Spatial Relations of Parts and of the 

 Range of Dominance; Experimental Obliteration and 

 Determination of Axial Gradients and Dominance; The 

 Extension of Dominance during Development; Experimental 

 Physiological Isolation and Reproduction in Plants; The 

 Localization of Experimental Reproduction in Relation to 

 Different Axes; Conclusion. 



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