V. THE WORK OF STREAMS 



THE PROCESSES OF EROSION . . . . . . 125 



FEATURES DEVELOPED BY RIVER EROSION . . . 137 



STREAM DEPOSITS 171 



SUMMARY 188 



REFERENCES 189 



VI. GLACIERS . . .191 



CHARACTERISTICS OK GLACIERS 191 



THE GEOLOGICAL WORK OF GLACIERS .... 208 



THE WORK OF WATERS ASSOCIATED WITH GLACIERS . 225 



SUMMARY .230 



QUESTIONS 230 



REFERENCES 231 



VII. OCEANS AND LAKES .233 



THE SHORES OF THE OCEAN 237 



OCEAN DEPOSITS 255 



LAKES . . .261 



QUESTIONS 271 



REFERENCES 272 



VIII. THE GREAT RELIEF FEATURES OF THE LAND 274 



MOUNTAINS 274 



PLATEAUS 284 



PLAINS 285 



REFERENCES 287 



PART II 

 HISTORICAL GEOLOGY 



IX. HISTORY OF THE EARTH 289 



GROUPS OF ANIMALS AND PLANTS 292 



FOSSILS AND THEIR USES 302 



QUESTIONS 307 



REFERENCES 307 



X. ORIGIN AND DEVELOPMENT OF THE EARTH . 308 



THEORIES OF ORIGIN 309 



QUESTIONS 316 



REFERENCES 316 



