Plate 70. 



Coarse felsenmeer in massive grit of the Wolf formation ; summit of the Selkirk 

 range, north of Dewdney trail ; about seven thousand feet above sea. 



Coarse felsenmeer in quartzito of the Ripple formation ; southeastern slope of Mt. 

 Ripple, Selkirk range ; seven thousand feet above sea, 

 25a— vol. iii— p. 638. 



