20. Y O R K S H I R E. 301 



a vein of cold land would be found on its 

 margin-, but obfervation proves the contrary. 



The waters of the morelands find vent in 

 the dales and dingles with which they are 

 interfered •, and are entirely cut off from the 

 Vale by a deep valley which lies between 

 the moreland fwells and the range of lime- 

 flone heio-hts which fcrni the immediate 

 b-anks of the Vale ; while the heights them- 

 fclves, being in all human probability formed 

 entirely of rock, receive into their bofoms 

 the Vv'aters v.'hich they abibrb, and which fink. 

 below their bafes, or rife in rocky fountains 

 at their feet. 



Near Pickering the river Costa takes its 

 rife ; not gulhing forth as from the mouth of 

 a cavern, but rifing at numberlefs apertures 

 through a filter of fand, which has probably 

 been brou'^ht out of the fiilures of the rock ; 



O 



the entire river, or rather river-like brook, 

 rifing within the compafs of a few acres. 



It is a fact worthy of attention, though 

 perhaps eafily to be accounted for, that a 

 trail of country containing perhaps twenty 

 r(|uare miles, lying above this cifiux, has 



fcarccly 



