At- 



TABLE OF CONTENTS, 



PART I. 



LKTTER TO THE HON. JOHN M. PALMER 



CHAPTER I. 



GEOLOGY OF CALHOUN COUNTY. 

 By A. H. Worthen Pages 1 to 23 



CHAPTER II. 



GEOLOGY OF PIKE COUNTY. 

 By A. H. Worthen Pages 24 to 42 



CHAPTER III. 



GEOLOGY OF ADAMS COUNTY. 

 By A. H. Worthen Pages 43 to 61 



CHAPTER IV. 



GEOLOGY OF BROWN COUNTY. 

 By A, H. Worthen , Pages 62 to 74 



CHAPTER V. 



GEOLOGY OF SCHUYLER COUNTY. 

 By A. H. Worthen Pages 75 to 89 



