CONTENTS 



PAGE 



INTRODUCTION 7 



PART I. DYNAMICAL GEOLOGY. 



HAPTEK 



I. ATMOSPHERIC AGENCIES 10 



II. AQUEOUS AGENCIES . . . . . . .17 



III. ORGANIC AGENCIES 83 



IV. IGNEOUS AGENCIES 131 



PART II. STRUCTURAL GEOLOGY. 



I. GENERAL FORM AND STRUCTURE OF THE EARTH . . 173 

 II. STRATIFIED ROCKS 179 



III. UNSTRATIFIED OR IGNEOUS ROCKS ..... 210 



IV. METAMORPHIC ROCKS 224 



V. STRUCTURES COMMON TO ALL ROCKS .... 228 



VI. DENUDATION, OR GENERAL EROSION 252 



PART III. HISTORICAL GEOLOGY. 



I. GENERAL PRINCIPLES 256 



II. ARCHAEAN SYSTEM AND ARCHEOZOIC ERA . . . 263 



III. PALAEOZOIC ROCKS AND ERA 267 



IV. MESOZOIC ERA. AGE OF REPTILES 324 



V. CENOZOIC ERA. AGE OF MAMMALS 363 



VI. PSYCHOZOIC ERA. AGE OF MAN 407 



INDEX 417 



5-6 



