LIST OF ILLUSTRATIONS. 



LITHOGRAPHS. 



Page. 

 Plate I. Western slope of main ridge of Cascade mountains, from near Camp M 41 



II. Tertiary fossils 73 



III. Tertiary fossils 73 



IV. Tertiary fossils 73 



V. Tertiary fossils 73 



WOOD CUTS. 



Figuke 1. Section of strata exposed on south shore of San Pablo bay. 13 



2. Sand hills near Benicia 16 



3. Volcanic cone near Fort Reading 26 



4. Lassen's butte from the north 31 



5. Trap plateaus at the mouth of Canoe creek 32 



6. Hill of sandstone capped with trap, Rhett lake 37 



7. Glacial groves in trap ledges, Cascade mountains 42 



8. Conglomerate column, Mpto-ly-as river 46 



9. Section of bank of Psuc-see-que creek 47 



10. Colored tufas, Psuc-see-que creek 47 



11. Side view of Mpto-ly-as river canon .... 48 



