CONTENTS. 



I. FACTS; 



OR, 



THE RECORD GIVEN US TO READ. 



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PAGE. 

 I. THE GEOLOGY AT OUR DOORS, ........... 9 



Surface Materials. 



II. LOST ROCKS, ................... 13 



Bowlders. 



III. THE GRAVEL PIT, ................. 18 



Arrangement of the Drift. 



IV. AMONG THE GLACIERS, .............. 24 



Geological Action of Glaciers. 

 V. THE HILLSIDE SPRING AND ITS WORK, ....... 30 



Subterranean Waters and their Deposits. 



VI. INTRODUCTION TO THE ROCKS, ........... 35 



Kinds of Minerals and Stones. 



VII. THE FLOODS OP THE GREAT LAKES, ........ 41 



Lacustrine Deposits and Terraces. 



VIII. THE MUD FLAT, .......... . ...... 45 



Sedimentation. 



IX. THE RIVER GORGE, ... ............. 50 



Erosion. 



X. A WALK UNDER THE SEA, ............ 56 



What goes on in the Ocean Depths. 



XI. BY THE ROCKY WALL, .............. 62 



Strata and their Classification. 



XII. MYSTERIOUS FORMS OF LIFE, ............ 67 



Fossils. 



