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



Plate XLVII 



Fu;. A. 



Fig. a. Glacial grooving of Vancouver greenstone-dioritcs at entrance to 

 Victoria Harbor, Vancouver Lsland. 



Fig. b. Seattle shale (Astoria series) overlain by Pleistocene sands. Ilwaco 

 Washington. 



