X ILLUSTRATIONS 



PLATE PAGE 



XXX. Eocene plants. ^Esculus arctica 162 



XXXI. Eocene plants. Pterospermites magnifolia 162 



XXXII. Eocene plants. Pterospermites alaskana 162 



XXXIII. Eocene plants. Picea? Phyllites. Juglans. Alnus 162 



TEXT FIGURES 



FIGURE PAGE 



1. Dikes, Lowe Inlet 14 



2. Dikes, Lowe Inlet 15 



3. Section north of Wrangell 16 



4. Dikes in Glacier Bay 20 



5. Bogoslof Volcano 30 



6. Cliff -section, northeast side of St. Matthew Island ... 33 



7. Cliff -section, St. Matthew Island 33 



8. Cliff of trachyte, St. Matthew Island 34 



9. Cliff -section, east side of Hall Island 36 



10. Sketch of Siberian coast 42 



11. Coast of Port Clarence, Alaska 44 



12. Group of islands near Kadiak 52 



13. Fossil locality, Pogibshi Island 53 



14. Section of Treadwell mine ; open pit 60 



15. Section of Treadwell mine ; 44o-foot level 60 



1 6. Map showing Stepovak Bay and Chi chagof Cove 72 



17. Geological map of vicinity of Chichagof Cove 75 



18. Section on south face of Chichagof Peak 81 



