CONTENTS 



CHAPTER T 



Nucleus and Cytoplasm 



A. The Cytoplasm 



1 . The Cytoplasm proper . ; 



2. The Cell Membrane 



3. The Centrosome 



4. Chondriosomes . 



5. Metaplastic Bodies 



B. The Nucleus .... 



C. Mitosis ... 



1. The Division of the Chromosomes^ and their Relation to 



the Resting Niccleiis . 



2. Chrojnati?! a?id Linin 



3. Nuclear Me?}ibra?ie and Karyolymph 



4. Karyosom'es and Prochromosomes 



5. The Achromatic Figure . 



D. Amitosis .... 



PACK 

 I 



I 



I 



3 



4 



4 



4 



4 

 6 



'3 

 18 



'9 



19 



2 I 



24 



CHAPTER n 



Meiosis . ... 



A. Meiosis in the Male ..... 



1. Meiosis in Tomoptcris onisciformis 



2. Meiosis in Lepido siren par ado. va 



3. Meiosis in Certain hisects 



B. Divergent Views of the Process of Meiosis 



1 . Parasyndesis and Tclosyndesis . 



2. The Mutual Relations of the Homoloisous Lhromosome 



during Syndesis .... 



3. Meiosis with Tetrad Formation 



\\ 



28 



31 



37 



41 

 43 

 43 



48 

 49 



