WESTLETON BEDS TO THOSE OE NOREOLK, ETC, 119 



The Author, in replj^ stated that whilst Mr. Wood was working 

 from north to soath, he himself had worked from south to north. 

 He had come to the conclusion that the beds, as he understood 

 them, were distinct, both as regards their association and classi- 

 fication, from those which Mr. Wood had described as the Bure- 

 Valley Beds. Tellina baltJiiaa is very irregularly distributed at 

 the present day, and has a wide southern range. When the 

 Chillesford Clay is absent, confusion arises from intermixture of 

 Norwich-Crag and Westleton forms, whence the modified fauna 

 known as the Weybourn Crag. Some of the fossils of the upper- 

 most beds of his Porest-Bed series may also have been washed into 

 the Mundesley or Westleton Beds. It is difficult to show that 

 the Forest series is different from the Chillesford Beds ; though his 

 impression was that it is different and newer. The subordinate Arctic 

 Freshwater Bed is of small dimensions and shows the setting in of 

 cold, which we should expect as introductory to glacial conditions. 



Q. J. G. S. No. 182. 



