182 MENDIP NOTES. 



stone, Mr. Winwood, Mr, McMurtrie, and I, noted black 

 shaley beds overlying the limestone. These at first sight 

 looked like Coal-measure Shales, but proved to be Hhoetic or 

 Penarth Beds resting uncomformably on the Mountain Lime- 

 stone. Avicula contorta was found ; and the Bone Bed. 

 Mr. Winwood is describing the section (with a figure) in 

 the Proceedings of the Bath Field Club. 



I cannot conclude these brief notes without saying that if 

 I have been led to differ from the conclusions reached by the 

 gentlemen of the Geological Survey in certain details of 

 mapping, I do so with some diffidence and in the interest of 

 accuracy. I yield to no one in my admiration of the w^ork 

 of the Survey in the Bristol and Mendip areas. 



