7o8 



E. M. KINDLE 



which was suJBiciently quiet not to break up the stems into the small 

 sections usually found in limestone. Above the ripple-marks 6 or 

 8 inches, however, there is equally clear evidence of current action 



Fig. 4.- — General view of ripple-marks in Trenton limestone at cement quarry, 

 Hull, Quebec. 



Fig. 5. — Close view of ripple-marks in quarry at Hull, Quebec 



at a later period having been involved in the distribution of the 

 materials comprising some of the beds. At this level a band of 

 cross-bedded limestone a few inches in thickness occurs with layers 

 inclined at about 27°. The material comprising these current- 



