LIST OF ILLUSTRATIONS 



FIG. 



PAGR 



Ckyptozoon Boreale .... Fronihpiecc 



^^•'^•' xvi 



1. Olenei.lus ^3 



2. TrIARTHRUS 



3. Hymenocaris 27 



4. Ctenichnites ^^ 



5,6. Arch^ocyathus .... ^c 



7, 8. Cryptozoon ... .7 .,, 



9. Fossils in Lower Camisrian Boui.der . .41 



10. Section Hanford Brook r, 



11. Worm Tracks. . . r- 



53 



12. Pre-Camurian Fossils . -, 



• • . • .14 



13. Arenicolites and Asfidella .... 54 



14. Cryptozoon -^ 



15. Worm Burrows 5^ 



16. Casts of Foraminifera ^g 



17- Tudor Eozoon 5„ 



18. Laurentian America S; 



19. Map of Grenville Limestones . . . . ScS 

 19A. Attitude of Limestone, COte St. Pierre . 91 



20,21. Disturbed Beds ,0^ 



22. Section of Limestone x\2 



23. SiLICIFICATION OF CORAL ,,3 



24. Cast of Polvstomella in Glauconite , .115 



xiii 



