M EM. MUSEUM COMP ZOOL.VOLVI 



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SECTION ACROSS PINE GROVE CHANNEL. 



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SECTION ACROSS ILLINOIS HILL AND SECRET DIGGINGS 



Scale 200 Feet to one Inch J 



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FAULT IN GRAVEL; MONTE CRISTO SLOPE, 



ABOVE PORTWINE, SIERRA CO. 



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Fig. 4. 



SECTION OF CLAY BANK AND LA PORTE GRAVELS: 



to illustrate their relations and the curvature of 

 Gravel Streaks under ovcrTiangiiw Bed-Rock . 



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SECTION OF BRANDY CITY FAULT 



Aj>p Scale Thirty Feet to One Inch I 





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'Bed Bock 

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SECTION OF GRAVEL BANK 



AT PORTWINE. 



' Seal* Thirty feet to One Inch . I 



J.BieiUith NY 



