2. 



YORKSHIRE. i^' 



thofe of the northern margin, which lie full 

 to the fun. The fubftratimi of both is the 

 fame ; namely Limedone Rock. The fadt, 

 perhaps, may be accounted for by the pile 

 of mountains which rife behind the northern 

 banks ; and which, though they difcharge 

 rivers of water, ftill retain at their bafes a 

 fufficient quantity to keep their ikirts cool 

 throu2:h the fummer-feafon. 



o 



The RIVERS of the Vale are the Derwetif 

 and the Rye ; which, by receiving the waters 

 of the Cqfia, the Seven, the Dove, the Riccal, 

 and other inferiour brooks *, is more co* 

 pious than the Derwent at their conflux. 

 The rivers have their rife in the moreland 

 mountains, are colledled in the dales, and 

 wind through the wooded vailies into the 

 area of the Vale ; through which they move 

 v;ith fiuggard pace to their narrow outlet. 



As 



* A reinarkable circamft:incc attends tliefc broo'<3 ; 

 all of whicli, fiom the llye to the Colla (the Seven in 

 a dry fum.'iicr not excepted) link (when at dead water) 

 in the valUcs between the Lhnellane Heights. Some 

 of them rife again in the fame vailies in which they 

 fink : others difappear entirely. In the time of floods 

 they all occupy the channels which nature has provided 

 for them on the furface ; and which, in the annexed 

 Sketch, are marked by dotted lines. 



