TABLE OF CONTENTS 



INTRODUCTION 



List of Figures 



Historical Sketch of the Cell-theory; its Relation to the Evolution-theory. Earlier 

 Views of Inheritance and Development. Discovery of the Germ-cells. Cell- 

 division, Cleavage, and Development. Modern Theories of Inheritance. Lamarck, 

 Darwin, and Weismann ........... 



Literature ..........••••• 



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I 

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CHAPTER I 



General Sketch of the Cell 



A. General Morphology of the Cell . 



B. Structural Basis of Protoplasm 



C. The Nucleus .... 



1. General Structure 



2. Finer Structure of the Nucleus 



3. Chemistry of the Nucleus . 



D. The Cytoplasm 



E. The Centrosome 



F. Other Cell-organs . 



G. The Cell-membrane 

 H. Polarity of the Cell 



I. The Cell in Relation to the Multicellular Body 

 Literature, I. ...... . 



14 



17 



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CHAPTER II 



Cell-Division 



A. Outline of Indirect Division or Mitosis . 



B. Origin of the Mitotic Figure .... 



C. Modifications of Mitosis ..... 



1. \^arieties of the Mitotic Figure . 



2. Heterotypical Mitosis .... 

 Bivalent and Plurivalent Chromosomes 

 Mitosis in the Unicellular Plants and Animals 

 Patliological Mitoses ..... 



I). The Mechanism of Mitosis ..... 



1. Function of the Amphiaster 



()/) Theory of I'ihrillar Cijutractility . 

 {l>) Other Theories .... 



2. Division of the Chromosomes 



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