[ee 
318 cect, 
sof Tennessee, $c. 3s 
county, aud Me. Robert, Grattan which, with an ofplanaijeng 
d 
tur e time 
m these surveys, it appears that, e whole extént of de 
e, hitherto aiakbectads. oes not ex A eight hundred yards. 
is was the length stated to me by the guide, when I visited 
© ‘it in August, 1817. i campot but think there is some mistake 
— in Mr. Kain’s r rk, that “it is a mile - half in extent.” . 
urs Wexeminice every accessible part, and by 
. permission of Mr. Heliry*Bifigham, the owner, sai a large 
collection of specimens, which were transmitted for the Cabi-” 
net of Yale pote ae ee 
* 
7 
© Te Natural B ridge. 
9. My @iect in naming this celebrated curiosity, is not to 
givea new description of it, but merely to furnish a correct 
account of its dimensions. I visited it in company with the 
Rev. Mr. Huson, who had previously found its height by @ 
a to be two hundred and ten feet. We now found it by 
the quadrant, to be two hundred and eleven feet, and the arch 
through the centre ‘about forty feet. 
Some have attempted to account for this great curiosity; by 
supposing that a convulsion in nature may have rent the hill, 
in which it stands, asunder; thus forming the deep and narrow 
defile, over which the rocky strata were left, which constitute 
its magnificent arch. If so, the sides should have correspond- 
ing parts. At a distance from the base, no such correspondence 
is perceptible. At the base, the rocks are more or less craggy 
and irregular. This led me to take the courses and distances 
of each side. The lepine was the result. 
“Bastor si side preainigd angular points.|| Western side presents 3 angular points. 
1. N.55° W.1 chain. 09 links. || 4, N. se W. 0 chain. 45 links 
W.1 65 = — WwW. — ea see 
1 — 
8.Ng7 Ww. oe: 
re : = a 
4. N.80 = wi} Nn 
. “ See Number I, page 59. 
lied = ++ ae 
rz 
a 
or = be able to transmit ~ “% 
6 lle 
Se 
* 
4 
'¢ 
~ 
