Nov., 1917J 



Concretionary Forms 



9 



JUL 



rn: 



r7~i 



r 1° ■" I 



un 



Glacial Drift Material — 10 to 15 feet. 



Concrt'lionary Whorls (rare) 



Waffles 

 Concretionary Pebbles 

 Masses 



'Cup and Cone' 

 Concretions 



Isoliths 



Buff Stone 

 40 ft. 



Gray Stone 

 20 ft. 



V 



Total 



Section 



60 ft. 



V 



Section at Rucker Quarries, showing position of Concretionary Forms. 



I 



