From Wenlock. 



a." 2 -a 



t-J O CD 



2^ ^ 

 2 ° 



2. vi 



Genera. 



Lower Ludlow. 



Aymestry Lime- 

 stone. 



Upper Ludlow. 



Passage-beds 



South Wales. 



North Wales. 



Westmoreland. 



Shropshi 



Worcestershire. 



Herefordshire. 



Scotland. 



Ireland. 



re no 



