168 



and more probable iu proportion to the number of cases 

 averaged. We may first examine in this point of view the 

 dips in the Vale of York. Those which are marked + require 

 the Isoclinal to go northward, the — sign indicates its removal 

 southward. 



Croft 



Allerton .... 

 Osmotherley 

 Hambleton . 



Thirsk 



Craike 



York 



Harrogate . 

 Pocklington . 



Selby 



Burton 



Castleford . 

 Doncaster . 



Sam .. 



Difference 17*4 



Mean 1*3 or in Geographical 



Miles 



2-5 



Similarly we may group the dips observed on the hilly region 

 near the eastern coast. 



+ 

 0-7 

 0-8 

 5-9 

 5-8 

 4-1 



Lazenby 



Whitby 



Scarborough 

 Flamborough ... 

 Bridlington 



Sum 



17-3 



Mean 3*46' or in Geographical 



Miles 6-25 



The localities in the district west of the Vale of York are too 

 widely scattered, to admit of advantageous grouping in one 



