Plate 14. 



Cliff in Siyeh limestone, showing molar-tooth structure ; at cascade in Phillips 

 Creek, eastern edge of Tobacco Plains. Hammer fourteen inches long. 



Concretion in dolomite ; lower part of Gateway formation, Galton Range. Only part 

 of concretion shown. One-half natural size. 

 25a— vol. ii — p. 104. 



