Smithsonian Report. 1930. — Rich»rz 



Plate 1 



Varved Glacial Clay. Sandy Falls. 6 Miles West-Northwest of 

 TiMMiNS. Ontario 



From Memoir Mfi, Caoiwla fieological Survey, Plate II, .\. Krnst .\ntevs, Hetre.it of the last 

 ice sheet in Eastern Canada. (Kepro(luce<l by courtesy of (ieological Survey of Canada.) 



