Smithsonian Report. 1931.— Antevs 



Plate 1 



k 



t ' ' "tt^i ^ 



l^^o-^ 



i»yi»w»awttiMatfr 



Massive postglacial clay from I>a Sarrc, Que- 

 bec. Formed by redeposition of varved 

 glacial clay. b. Varved late-glacial clay 

 from Espanola, Ontario. (Actual length of 

 samples l!4feet.) 



