XVUl WOODCUTS AND OTHER ILLUSTRATIVE FIGURES. 



FIG. AGE 



Map of the Drainage of the Ancient Laurentian Valley, now 

 obstructed and forming the Great Lakes 524 



1, Primitia{?) Walcofti 543 



2. TJlrichia Conradi 544 



-, /Map of the Hill and Burn of Knocknaii-ling near New Grallo- 

 ^•1 way ■ 571 



2. Contorted Flags and Grits near Knoeknairling Hill 574 



3. Junction of the Flags and Granite on Knocknairling Hill 576 



Section of the Gravels at the Tilehurst Road, Reading 585 



1. Rusichnites grenvillensis 597 



2. Eusichnites acadious 598 



3. Eusichnites (Psammichnites) clinionensis 598 



4. Climactichnites tind Protichnites COO 



5. Marks made by Limidus 601 



6. Phymatoderma 602 



7 &8. Scolithus 603,604 



9. Radiating Burrow.... 605 



10. AstropoUthon Hmdii 606 



11 & 12. Sahellarites trentonensis 607 



13. Trunk-like Concretion 609 



14. Worm-tracks and Ripple-marks 611 



15. Worm-burrows 612 



16. Buthotrephis Grantii {GavhoxniQTovis) 613 



17. Buthotre]jhis Grantii {SilavisLn) 614 



18 & 19. Rill-marks 615,616 



Sketch-map of part of the West Coast of the South Island, 

 New Zealand 623 



