190 On the 0 rig in of the Terraces, Balks, or Lyn diets 



very gentle slope. 99 They are the class to which I would apply 

 the theory given above, of their probable origin in " strips " or 

 " lands," formerly held in severalty by different occupiers. No. 2 

 represents another class occurring upon very steep slopes, and 



Fig. 2.— Profile of Terraces on the Side of a Chalk Hill near Twyford. 



contouring round a promontory of the hill-side. In these cases it 

 is probable that the pick or mattock was emplo}^ed as well as the 

 plough. The exact resemblance of such terraced slopes to those 

 so generally formed in similar situations by the vine-growers of 

 the continent, with the object of arresting the descent of soil 

 washed down by rain-storms, and also of facilitating the action of 

 the plough, is evident. But Mr. Mackintosh refuses to believe 

 them artificial, and attributes them to " oceanic currents, at differ- 

 ent levels with or without floating ice." No. 3 he describes "as 

 the finest series of undoubted old Coast-lines or liaised Sea-beaches," 

 he ever met with. 



Fig..3.— Terraces near Llangollen, as seen from the hill north of Llantysilio Railway Station. 



