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Mr. PETRIE'S Inquiry into the Origin and 



Tower of Brechin, in Scotland, which, as I shall show in the Third Part of this 

 Work, there is every reason to believe was erected about the year 1020, and 

 by Irish ecclesiastics. The erection of the original church of Donaghmore, 

 anciently called Domhnach mor Muighe Echnach, i. e. the great church of the 

 plain of Echnach, is ascribed to St. Patrick, who placed here his disciple Cas- 

 sanus, whose relics were preserved in this church, and held in the highest vene- 

 ration forages after his death. See Trias Thaum., pp. 130, 131. Of this ori- 

 ginal church, however, there are now no remains, and its site is occupied by a 

 church, in the pointed style of architecture of the thirteenth or fourteenth cen- 

 tury. 



- .-j 



As a specimen of a doorway, which exhibits a more regular masonry than 

 any of the preceding, and which there is every reason to believe to be of some- 

 Avhat later age, I annex an illustration of the doorway of the greater Tower of 

 Clonmacnoise ; and as. I have treated so much of this Tower in several parts of 



