Mr. RAY’j Itineraries. 235 
Sea-Swallow., which is of an Afh 
Colour on the Back, White under 
the Belly, hath a Black Head and a 
forked Tail (unde Nomen). The 
Bill like that of the Larus cinereus. 
We faw another Larus, more Black 
upon the Back, and that had Yellow 
Legs. 
Saturday May the 31ft, We rode 
to Harlech, palling two Fords, 16 
Miles. Here are yet ftanding the 
Walls of an anticnt and ftrong Caf- 
tle, built on an high Rock clofe by 
the Sands ; alfo a great Level, which 
they call the Marfh, which has doubt- 
lefs been formerly gained from the 
Sea. Hereupon grows in Plenty, 
yuncus acutus maritbnus five capi- 
tulis Sorghi C. B. of which I fu- 
fpeft Phyt. Brit, makes three Plants. 
This is a miferable poor Town, yet 
is governed by a Mayor, two Bailiffs, 
