4O0 



CHARLES S. FROSSER 



fall is formed by a ripple-marked layer in which the ripples run 

 N. 3 5 W.. and the steeper slope is to the west. The crests are 

 from 27 to 28 inches apart, and the ripples are more irregular than 

 those in the bed of Elk Run above the highway bridge. It is not 



certain that this is the same layer as the one above the highway 

 bridge, and Mr. Bailey, who is interested in geology, states that 



FlG. 2. — View of ripple-marked bed of Elk Run. looking downstream toward 

 the highway bridge. Photograph by C. S. Prosser. 



it is lower. Below the ripple-marked layer in the fall is another 

 one with the ripples running N. io° \Y., and the steeper slope 

 to the east, with a more gradual one to the west. 



Farther down Elk Run. shown for some rods in the bed of the 

 stream and making a lower fall, is a conspicuous ripple-marked 

 layer, which is 5+ feet below the one forming the Bailey fall. 

 These ripple-marks run X. 10-16° W., the crests are undulating, the 

 slopes steeper to the west than to the east, and the crests from 21, 

 26, to 27 inches apart. Farther down the run on the eastern side, 

 opposite the E. E. Jamison house, where the pike comes down into 



