XIV 



TABLE OF CONTENTS 



C. The Energy of Division 



D. Cell-division and Growth 

 Literature, VIII. . 



289 



293 

 294 



CHAPTER IX 



Theories of Inhekhance and Development 



The Theory of Germinal Localization . 



The Idioplasm Theory .... 



Union of the Two Theories . 



The Roux-Weismann Theory of Development 



Critique of the Roux-Weismann Theory 



On the Nature and Causes of Differentiation 



The Nucleus in Later Development 



The External Conditions of Development 



Development, Inheritance, and Metabolism 



Preformation and Epigenesis. The Unknown Factor in Development 



A. 



B. 



C. 



D. 



E. 



F. 



G. 



H. 



I. 



J- 



Literature, IX. 



Glossary . . . . 

 General Literature-List 

 Index ok Authors . 



Index of Subjects 



296 

 ;oo 



;o2 



306 



3" 

 321 



526 



327 

 33 



o 



343 

 359 



365 



