MARINE BIOLOGICAL STATION AT PORT ERIN. 



143 



grounds, which, on the east, would be well defended by 

 the river, doubtless in those days deeper and at a lower 

 level. An indication of the former level of the ground 

 appears in the Eefectory, now converted into a stable, 

 where the tops of the windows appear almost on a level 

 with the present floor. 



Near by, at the foot of the mill dam, which may have 

 been raised by the Cistercians themselves, is the "Crossag," 

 an example of a thirteenth century bridge, nearly in the 

 same state as it was left by the builders. Its breadth is 

 just 3ft. 3in. clear in the centre. At the western end is 

 a small subsidiary arch, somewhat of the Carnarvon type, 

 or square-headed trefoil, but an original portion of the 



Fig. 44. Encaustic tiles, from Rushen Abbey. 



structure, a type of which we have several doorways in 

 Castle Rushen. (One is seen behind the elk in fig. 3.) 

 Some encaustic tiles of perhaps loth century from Rushon 

 Abbey are shown in fig. 44. 



Bemaken Friary in Kirk Arbory (Cairbre), though 

 founded by the Grey Friars in 1373, has scarcely any 

 remains, and none older than the fifteenth century. In 

 the chapel, now a barn, may be seen the arches of the 

 east windows, north door and window, and a south 



