LIST OF ILLUSTRATIONS. 



FIG. 



PAGE 



1. Zermatt Glacier „ . . 2 



2. Formation of veined structure 3 



3. 4. Formation of marginal fissures and veins ... 4 



5. Fissures and seracs 4 



6. Section across glacial valley, showing old lateral moraines . 5 



7. Mont Blanc glacier region 10 



8. Svartisen Glacier • • .13 



9. Floating berg 18 



10. Iceberg in the Antarctic Ocean .20 



11. Map of southeastern Alaska 22 



12. Map of Glacier Bay, Alaska 25 



13. Front of Muir Glacier 26 



14. Map of glaciers in the St. Elias Alps 31 



15. Map of Greenland 33 



16. Diagram showing the character of glacial motion . . 43 



17. Line of most rapid glacial mot-ion 45 



18. Diagram showing retardation of the bottom of a glacier . 46 



19. Bed-rock scored with glacial marks 52 



20. Scratched stone from the till of Boston .... 54 



21. Typical section of till in Seattle, Wash 55 



22. Ideal section showing how the till overlies the stratified 



rocks ........... 56 



23. Vessel Rock, a glacial boulder 56 



24. Map of Rhone Glacier 58 



25. Conglomerate boulder found in Boone County, Ky. . . 63 



26. Mohegan Rock 72 



27. Drumlins in Goffstown, N. H. 73 



28. Map of drumlins in the vicinity of Boston .... 75 



29. Section of kame 77 



30. Map of kames in Andover, Mass 78 



2 



