600 WONDERS OF ART 
top of the rock and the top of the solid work. t>^ 
thought a greatev degree of strength and stiffiiess 
gained, accompanied with less resistance to the 
power. On this occasion, the natural figure of the ' 
or bole, of a large spreading oak, occurred to our sagf^ 
engineer. C^fD' 
With these very enlightened views, as to the proper 
of the superstructure, Mr. Smeaton began the work 
2d of April, 1/57, and completed it on the 4th of js 
1759- The rock, which slopes towards the soulh'"' ^ ’|,il 
cut into horizontal steps, into which are dovetade ’ 
united by a strong cement. Portland-stone and gr^tiite’ .^ji, 
whole, to the height of thirty -five feet from the fouU‘‘ ^,,(1 
is a solid body of stones, engrafted into each t>thfr>j ^ 
united by every means of additional strength that 
devised. The building has four rooms, one over the j,f£ 
and at the top a gallery and lantern. The stone 
flat above, but concave beneath, and are kept from P' (liC 
against the sides of the. building by a chain let lO 
walls. It is nearly eighty feet in height, and since 
pletion has been assaulted by the fury of the elc* 
without suffering the smallest injury. _ 
To trace the progress of so vast an undertaking' ‘j 
show with what skill and judgment this unparalh’^ijfiJ 
gineer overcame the greatest dilBcullies, would tif 
the limits of this work. 
BELL ROCK LIGHT-HOUSE. 
The Bell Rock, or Inch Cape, is situated on the n® ^ 
coast of Great Britain, twelve miles south-west 
town of Arbroath, in Fifeshire, and thirty mile* p |k’ 
from St. Abb’s Head, in the county of Bervyick. pfO' 
in the direct trace of the Firth of Tay, and ot a 
portion of the shipping of the Frith of Forth, em pri'f"” 
very extensive local trade. I'his estuary is besides 
pal inlet on the nonhem coast of Britain, in which 
ping of the German Ocean and North Sea take rehjo 
or 
overtaken by easterly storms. At neap-tides, ^ 
quadratures of the moon, the Bell Rock is scaiec^j^l^j 
vered at low- water ; Imt in .spring-iides, when '‘’C 
greatest, that part of the rock which is exposed 
