CONTENTS 



CHAPTER I 

 The Problem 1 



CHAPTER II 

 The Struggle for Existence in Natural Conditions 12 



CHAPTER III 



The Struggle for Existence from the Point of View of the Mathe- 

 maticians 27 



CHAPTER IV 



On the Mechanism of Competition in Yeast Cells 59 



CHAPTER V 



Competition for Common Food in Protozoa 90 



CHAPTER VI 

 The Destruction of One Species by Another 114 



Appendix 1 143 



Appendix II 149 



Bibliography 154 



Index 161 



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IX 



