xii THE BIOLOGICAL BASIS OF INDIVIDUALITY 



Chapter 21. The individuality differentials and potential immortality 



of tissues 190 



Chapter 22. The nature of the individuality differential and of the 

 reaction of an organism against a strange individuality differen- 

 tial 195 



PART II. The Phylo genetic and Ontogenetic Development of Individu- 

 ality and Organismal Differentials 203 



Chapter 1. Transplantation and individuality in coelenterates and pla- 



narians 203 



Chapter 2. Transplantation and individuality in higher invertebrates 



and in amphibia 218 



Chapter 3. Transplantation and individuality of embryonal tissues . 234 



Chapter 4. The significance of organismal differentials in the trans- 

 plantation of pieces of embryonal tissue into embryos and into 

 adult organisms 244 



Chapter 5. Organizers and tissue differentiation, and their relation to 



organismal differentials 259 



Chapter 6. Regeneration, transplantation and the autogenous tissue 



equilibrium 275 



PART III. The Significance of Organismal Differentials in the Inter- 

 action between Single Cells 287 



Chapter 1. The role of organismal differentials in the union of free- 

 living cells 287 



Chapter 2. Tissue formation and organismal differentials .... 298 



Chapter 3. The role of organismal differentials in fertilization . . 307 



Chapter 4. Self fertilization and autogenous transplantation . . . 315 



Chapter 5. The relations between hybridization and transplantation . 326 



PART IV. Tumors and Organismal Differentials 333 



Introduction. The nature of tumors 333 



Chapter 1. A comparison between the transplantation of tumors and 



of normal tissues 338 



Chapter 2. Heredity and transplantation of tumors 363 



Chapter 3. The relation between growth energy, adaptive processes 



and organismal differentials in the transplantation of tumors . 384 

 Chapter 4. Immunity and organismal differentials in tumor transplan- 

 tation 400 



Chapter 5. Tumor growth and organismal differentials 432 



PART V. Organismal and Organ Differentials and the Specificity of 



Tissue Reactions 443 



Chapter 1. The relative importance of substratum and of morpho- 

 genic substances in the specificity of tissue reactions, and the rela- 

 tion of these factors to organismal differentials 443 



