

TABLE OF CONTENTS. 



Page 

 Introduction 5 



CHAPTER I. 

 The Stone Quarry 7 



CHAPTER II. 

 Sources of Materials 15 



CHAPTER III. 

 The Two Islands 25 



CHAPTER IV. 

 The Siskiyou Island 36 



CHAPTER V. 

 The Willamette Sound 54 



CHAPTER VI. 

 The Shoshone Island 73 



CHAPTER VII. 

 Introduction to Life of Lakes 99 



CHAPTER VIII. 

 Life of Lower Lake Region 114 



CHAPTER IX. 

 Life of Upper Lake Region 130 



CHAPTER X. 

 Surface Beds ............ 151 



CHAPTER XI. 

 The Rocks of the John Day Valley 157 



CHAPTER XII. 

 An Indian Legend 177 



CHAPTER XIII. 

 The Development Theory ' 183 



426 



