Proceedings Am. Philos. Soc. Vol. LII. No. 212 



Plate XLI 



Fig. a. 



Fig. b. 



Fig. a. Steeply lilted Arago beds (Tejon series) at Mussel Reef west of 

 Coos Bay, Oregon. 



Fig. b. Olequa beds (Tejon series) near old log dam on Stillwater Creek, 

 Little Falls, Washington. 



