244 A TOUR ROUND NORTH WALES. 



it contains as many rare plants as that. 

 Here I found Subularia aquatica, Ifoctes 

 Lacuftrisy and Lobelia dortmanna, growing 

 in fuch abundance as almofl to cover the 

 whole of the bottom. 



From hence I continued my journey 

 up another fleep, and from it's top faw 

 two other pools in a vale a great depth 

 below me on the other lide of it, one of 

 / f^/'^i thefe was called Llyn Llwydaw, the dufky 

 pool, and the other, much fmaller, Llyn 

 -// c y Cwm Glas, the blue pool in the hollow. 

 6 <c. Llyn Llwydaw has in it a fmall ifland, the 

 haunt of black-backed gulls during their 

 breeding feafon, for on this ifland, it is 

 faid, that they annually lay their eggs and 

 hatch their young. I did not defcend to 

 either of thefe, as there feemed nothing 

 about them at the time I was here likely 

 to repay me for the trouble, I contented 

 myfelf merely with the fight of them from 

 above, and proceeded onward for about 



a mile 



