404 THE PEKDLESIDE GEOUP AT PENDLE HILL, ETC. [Aug. I9OI, 



Dr. Wheelton" Hind, in reply, said that isodietic lines show similar 

 conditions. Zonal lines show time, and the former may cut the 

 latter obliquely. The fauna of the Yoredale Shales of Weuvsleydale 

 yields as yet no goniatites or other forms of the Pendleside type. 



In the recurring limestones of Wensleydale Productus giganteus 

 recurs, but in the Pendleside Series neither Pr. gigcmteus, Pr. latis- 

 simus, nor CJionetes jpapilionacea have ever yet been found. The 

 Pendleside Group is the name proposed for the ' shales-with-lime- 

 stones ' of the Geological Survey. 



