[ 2 5 0 ] 
l* 4' 20 " •, confequently, its true place 2 f 14° 3 1 52" 
on the day of the tranfit. The effect of refradion is 
not taken into thefe calculations j becaufe, at the firft 
obfervations, when its effed would have been greateft, 
it amounted only to a very fmall part of a fecond. 
Thefe, my Lord, are the Conclulions, which I 
have been able to deduce, from the obfervations made 
at your Lordlhip’s own obfervatory, and at the Royal 
Obfervatory at Greenwich. They are as faithfully 
related, as they were fcrupuloufly calculated ; and if 
they meet with the approbation of your Lordfhip, 
and of the Royal Society, I fhall think myfelf fuffi- 
ciently rewarded, for the Labour of a long and te- 
dious calculation. 
I am. 
With the greateft refped. 
My Lord, 
Your Lor dfh ip's, 
and the Royal Society s> 
much obliged, 
and moft obedient, 
humble fervant. 
Oxford, 
Dec. 15, 1761*. 
Nathanael Bills* 
XLVI. Q£- 
