Round Towers of Ireland. 337 
110 feet high, that of Fertagh 112 feet, and 
one, that of Drumiskin, attains the extra- 
ordinary elevation of 130 feet. (4) 
The circumference at their base does not 
vary in proportion to the difference in their 
height. The circumferences of the three 
just enumerated as 110 feet high, are 57, 51, 
and 54 feet, whilst that of Timahoe is 53 feet, 
though its height is only 35 feet. We can- 
not find any measure of that of Drumiskin, 
but it would probably be found not to exceed 
60 feet. The circumference of the Towers 
of Kilcullen and Abernethy is the same, but 
the height of the former is double that of the 
latter. Itisevident, therefore, that whilstsome 
of the Round Towers are remarkably slender 
and elegant in their: proportions, others are 
short, heavy, and clumsy. The thicknessof the 
walls varies from 3} to 43 feet. They have 
all been once divided into three or more sto- 
ries, some containing as many asseven. The 
floors of these stories must have been of wood, 
and have universally disappeared. They were 
supported, sometimes by projecting stones, or 
a projecting circular rim, and sometimes by 
the joists being let into the walls. In many, 
if not in all cases, each story is lighted by a 
(a) Ledwich’s Antiquities of Ireland, page 168. 
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