List of Illustrations 



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The Morphology of C. diphtheria; . . . , 

 Bacilhis Fixed and Stained .... 



Cytological Staining of Cocci 

 Cytological Staining of Azotobacter . 

 Granules in the Cell Envelopes of BaciUus 

 Demonstration of Capsules by Tomcsik's Method 

 Sections of Bacteria ..... 



Cell Division in Bacteria .... 



Behaviour of the Cell Wall in Dividing Streptococci 

 Cell Division in Cocci ..... 



Cell Envelopes in BaciUus .... 



Electron Microscopy of Cell Envelope Material 

 Cell Envelopes observable by Electron Microscopy 

 Bacterial Flagella ...... 



The Bacterial Blepharoplast .... 



Development ot Flagella in the Germinating Microcyst 



Cytology of Oscillospira ...... 



The Vegetative Nucleus ..... 



Microcysts o( Bacteriacecv ..... 



Effect of Hydrolysis on the Spore Nucleus 



The Spore Nucleus ...... 



Appearances of the Nucleus ..... 



Sections of Bacterial Nuclei 



The Germination of the Resting Stage 

 The Spherical Vegetative Nucleus . 



Complex Vegetative Reproduction in Bacteriuttt 



The Primary Nucleus and Vegetative Fusion Cells in various Bacteria 

 Tracings of Photomicrographs of Vegetative Fusion Cells 

 Fate of Chromosomes in Cell Division . 

 Nuclear Division in Azotobacter 

 The Vegetative Nucleus in Bact. coli 

 The Secondary Nuclear Phase in Bact. malvacearum 

 Types of Rod-like Nucleus .... 



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