viii CONTENTS 



Page 

 CHAPTER III. THE PROPAGATION OF TRANSNATURATION 



AND THE MULTIPLICATION OF VIRUSES 52 



1. Propagation of Transnaturation in Protoplasm by Viruses 52 



2. Spread of Denaturation in Red Blood Cells 54 



CHAPTER IV. THE CRYSTALLINITY OF VIRUSES 58 



1. The Fusion of Particles 58 



2. The Expulsion of Lipids 59 



3. The Length of Crystalline Virus Particles 62 



4. Various Shapes of Plant Viruses 66 



CHATER V. FINER STRUCTURE OF VIRUS PARTICLES AND ITS 



SIGNIFICANCE 68 



1. Decomposition and Fusion of Elementary Bodies of Protoplasm. ... 68 



2. Virus Particles Containing Lipids 70 



3. The Size of Virus Particles as Coagulated Elementary Bodies .... 74 



CHAPTER VI. THE SHAPE OF VIRUS PARTICLES 77 



1. Tailed and Filamentous Virus Particles 77 



2. Particles Elusive in Electron Micrography 82 



CHAPTER VII. THE MODE OF VIRUS MULTIPLICATION 87 



1. Multiplication of Phage within Bacterial Cell Protoplasm 87 



2. The Difference in Nucleic Acid Content between Virus and Host Cell 

 Protoplasm 93 



3. The Mode of Production of Virus Structure 95 



CHAPTER VIII. REPLICATION OF VIRUS PATTERN 99 



1. Structural Constitution of Viruses 99 



2. Change of Viruses Following Their Combination with Host Cells ... 101 



3. Essential Factors for the Spread of the Structural Change Caused by 



a Virus 104 



CHAPTER IX. VIRUS AND NUCLEIC ACIDS 108 



1. Nucleic Acids in Virus Particles 108 



2. The Action of Nucleic Acids Ill 



CHAPTER X. THE SUMMARY OF PART II 116 



REFERENCES 123 



PART III 



THE EVOLtTION OF VIRUSES AND THE GENERATION 

 OF THE SECONDARY ORGANISMS 



CHAPTER I. THE ORIGIN OF VIRUSES 129 



1. The Generation of Phage 129 



2. The Reason for the Phage Production from Healthy Bacteria .... 132 



3. Non-Pathogenic Viruses 136 



4. Latent Viruses 139 



