CONTENTS 



PAGE 



PREFACE 19 



INTRODUCTION 25 



DEVELOPMENT OF KNOWLEDGE CONCERNING THE PHYSICAL 

 FEATURES OF CECIL COUNTY, WITH BIBLIOGRAPHY. By 



George Burbank Shattuck 31 



Introductory 31 



Historical Review 31 



The History of Geographic Research 32 



The History of Geologic Research 36 



The Crystalline Rocks of the Piedmont Plateau 39 



The Potomac Group 41 



The Upper Cretaceous Formations 44 



The Tertiary Formations 45 



The Columbia Group 46 



Bibliography 49 



THE PHYSIOGRAPHY OF CECIL COUNTY. By George Buebank 



Shattuck 63 



Introductory 63 



Topographic Description 64 



The Atlantic Coastal Plain Region 64 



The Topography of the Atlantic Coastal Plain Region 64 



The Drainage of the Atlantic Coastal Plain Region 66 



The Structure of the Atlantic Coastal Plain Region 68 



The Piedmont Plateau Region 69 



The Topography of the Piedmont Plateau Region 69 



The Drainage of the Piedmont Plateau Region 70 



The Structure of the Piedmont Plateau Region 71 



Topographic History 71 



The Crystalline Rock Forming Stage 71 



The Schooley Peneplain Stage 72 



The Lafayette Stage 73 



The Sunderland Stage 74 



The Wicomico Stage 75 



The Talbot Stage 76 



The Recent Stage 78 



The Origin of the Streams of the Piedmont Plateau 78 



