404 



Mr. PETRIE'S Inquiry into the Origin and 



never exhibit ornaments of any kind; but those which are arched are often 

 adorned, and of these, the most ancient appear to be those which are orna- 

 mented with a plain flat band or architrave, as in the annexed illustration of the 

 doorway of the Tower of Roscrea, the internal construction of which I have 

 already noticed. 



.,*'., 



And in the doorways of those Towers of better masonic construction, and, 

 as there is every reason to believe, of later date, these bands are often orna- 

 mented with one, two, or three torus mouldings : such, for example, is the door- 

 way of the Tower of Monasterboice, in the County of Louth, represented 

 in the illustration on the next page, and which is further remarkable as exhi- 

 biting the idea of the cross by a connexion of the mouldings at the top and at 

 each side. 



That the Tower, in which this doorway is found, is of a different age from 

 that of either of the churches at Monasterboice, would be at once apparent to 



