ILLUSTRATIONS. 



VII 





Page. 

 Winchell: Figure 3— Relations of Muscovite Schist and Granite, Burntside 



Lake o ?1 



" 4 — View at Rapids below Basswood Lake 372 



" 5— Schist enclosing Granulite, itself embodying Mica Schist, 



Burntside Lake 373 



" 6 — Hydromica Schist wrapped around Masses of Granite, 



Farm Lake 373 



7 — Plan of the Folding of the Crystalline and Semi-Crystal- 

 line Rocks in the Northwest : 378 



" 8— Contact of the Animike and Kewatin Schists 386 



" 9 — Relative Position of the Animike and Kewatin Schists__ 386 



" 10 — Observed Contact of Animike and Kewatin 387 



" 11 — Professor Irving's "Generalized and partly Idealized 



Section" 387 



" 12 — Unconformity of the Animike and Kewatin Schists 380 



D11. 



,er: Figure 1 — General Map of Northern California 412 



2— Map of the Sandstone Dike District 413 



3 — Section on Cottonwood Creek at Gas Point 415 



4 — Crooked Sandstone Dike, 18 inches in Thickness 421 



5 — Biotite of Sandstone Dike, crushed edgewise (magnified) 426 



6 — Biotite of Sandstone Dike, crumpled (magnified) 426 



7 — Biotite of Sandstone Bed, crushed (magnified)-. 42*1 



8 — Section across the Dike Reerion in Northern California 431 



