Uses of the Round Towers of Ireland, fyc. 11 



base or plinth, at the angles of which the smaller cones are placed, is about fifty- 

 seven feet in diameter. 



The first of these cuts gives a general elevation of the structure restored ; 

 and the second its ground plan : 



The cuts which follow represent a plan on the level fg of the second chamber, 

 and a section through d e on the ground plan, exhibiting the internal arrangement 

 of the building, and the peculiar construction of its window : 



In the two next sections will be seen the means of ascent, from the lower to 

 the upper chamber, by a spiral gallery, constructed within the thickness of the 

 wall, and ascending in a gradually inclined plane from one story to the other. 

 The first of these sections is taken on the line a b on the ground plan ; the 



