443 
of an Arc of the Meridian. 
the triangles, as well as the observed direction of the meridians, 
are consistent. I have given the meridional distance between 
Clifton and Dunnose, bearings of the sides, &c. deduced from 
the most simple of the two methods ; first, because the result is 
sufficiently accurate; secondly, because it places within ge- 
neral reach, the means of examining this part of my operation. 
In attending to this remark, it must be remembered, that a line 
from Dunnose perpendicular to the meridian of Clifton, is only 
4853 feet. 
SECTION SECOND. 
Operations at the Station on Dunnose , the Southern Extremity of 
the Arc, with the Zenith Sector. May and June , 3802. 
On the 8th of May, the circular or large theodolite was 
placed over -the point selected for a new station : its distance 
was 6± feet from the gun, and in a direction due south. The 
following objects were then observed, the readings of which, on 
the graduated limb, were as follows. 
Sir R. Worsley’s obelisk (the top) - 113 0 14' 28" 
East Cowes sea mark - 1 46 36,5 
Luttrell’s Folly - - - 1 77 56 25 
Vane on the top of Portsmouth Church 40 6 44,5 
Sir R. Worsley’s obelisk, a sedond time 113 14 24,25 
The above objects were observed, in order that no possible 
mistake might result; as (though not probable) accidental cir- 
cumstances might have given rise to a wrong statement of 
the bearing of some one of the number, (except Portsmouth 
Church,) in the account of 1795. Omitting the obelisk, the 
