Plate 1. 

 2. 

 3. 



4. 

 5. 

 6 



LIST OF ILLUSTRATIONS. 



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Difficulties met with in making excavations. 



JS^S^iSSS*- 4 - - 



Fragmentary condition of fossil bones. 



7. Mastodon teeth. 



8. Mammoth teeth. 



9. Mammoth teeth. 



10. Arrow and spear heads. 



11. Arrow and spear heads. 



12. Spearheads. 



13. Spearheads. 



14. Spearheads. 



15. Spearheads. 



16. Blunt-pointed spearheads. 



17. Well-worn knives. 



18. Knives. 



19. Symmetric blades. 



20. Fvoughed-out blades. 



21. Roughed-out blades. 

 22 Roughed-out blades. 



23. Freshly sharpened implements. 



24. Antler implements. 



25. Antler implements. 



26. Bone implements. 2 35 



