308 



Proceedings of the Royal Irish Academy. 



O C5 



W & 





O 'O o 



o 



+ + 



+ + + + 



+ + + + 



aj CO 



CO 



rH i-l Cq 



§> a -3 



P-i 



^ < < 



o 





50 









1— 1 



1-] 



rH 





H-) 



Q. 



•g' 



be 



P4 P4 Ai 



