Memoirs C^Acad. Sci. Volie. 



[AhNDLdJ PlATE IXXI. 



Figure a. Pismo. — Section of sea-cliff three miles nortlnwest of Pismo, sinowing IVliocene shales on 

 right, overlain unconformably by San Pablo (IVIiddle Neocene) sandstone on left, the whole capped by 

 horizontal Pleistocene deposits of brecciated shale. Photograph by R. Arnold. 



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Figure b. Santa Barbara. — Bluff just west of the bath-house, showing alternating hard and soft layers 

 of the lower San Pedro (Pleistocene) sandstone. Photograph by R. Arnold. 



