C 279 ] 
it follows, that had the pofition of the point C been 
determined by the latter method, inftead of the for- 
mer, it would have been placed 31,4 feet more 
to the northward than it was found by the fedfor; 
and, in confequence, the length of the degree of la- 
titude would have come out 2 1 feet longer. But the 
difference is fo fmall, that it only ferves to confirm the 
exa&nefs of the work, and renders it unneceffary to 
enter into any confideration, which of the two me- 
thods ought to be preferred. 
The meridians N P, CD, and A M, were found 
by celeflial obfervations. The method of proceeding 
was as follows : 
To find the meridian AM, and the angle that 
the line AB makes with the faid meridian. 
The equal altitude inffrument being fet up at the 
point A, with its vertical axis over the faid point, 
equal altitudes of ffars were obferved for finding the 
motion of the clock. The time was next computed 
when fome northern ffars would pafs the meridian by 
the clock, at which inffant ((hewn by the clock) the 
vertical wire in the telefcope was brought to bifeCl 
the (far; and, the vertical axis of the inffrument re- 
maining fixed, the telefcope was turned down in the 
fame azimuth to the horizon, and a candle placed op- 
pofite to the vertical wire, as a point in the meridian. 
And the time of ffars pafling an azimuth in the di- 
rection of the line AB, for determining the angle 
BAM, was found by bringing the vertical wire in the 
telefcope to bifedt a candle placed (about 14 mile from 
A) in the line AB; the telefcope was then elevated to 
the ftar, and the time when it palled the faid vertical 
wire taken. 
The 
