[ 2 4 I 3 
5. At i9 h 58' 26'', limb of Venus before fun’s 
limb u)' 374- /y ; and was fouth of fun’s lower limb 
3' 43" : therefore, Venus before fun’s center in right 
afcenfion 7' 2$". 6 ; and was louth of fun’s center in 
declination 12' 3 'A 5. 
The few obfervations, which were afterwards made 
by Mr. Green, with Mr. Dollond’s micrometer, are 
omitted ; for they difagree fo much with themfelves, 
and alfo with the above, that there muft be fome 
error in reading the numbers of the nonius ; or, 
which is more probable, in placing the micrometer 
exactly parallel to the equator, occalioned by the hurry 
with which they were made. 
In order to determine more exa&ly the time of the 
ecliptic conjundlion, with the latitude of Venus then ; 
together with the time of the middle of the tranfit, 
and the neared; approach of the centers ; and from 
thence the true place of her node ; I have carefully 
computed the following numbers from theory : be- 
caufe, as Dr. Halley has obferved, in the Philofophical 
Tran factions, N° 386, “ there is always an unavoid- 
c< able, though fmall uncertainty in what we obferve, 
“ yet greater than there can be in the theory, efpe- 
“ daily now it is fo very near the truth.” The lolar 
numbers were computed from new tables, not yet 
publifhed, corrected by the fmall equations, occa- 
fioned by the influence of the moon and planet Ju- 
piter, and alfo the nutation of the earth's axis. The 
fun’s place was very well obferved on the meridian, 
both at Greenwich and Shirburn, the day of the 
tranfit ; which, allowing for the difference of longi- 
tude of thofe places, agreed to a furprizing exadnefs, 
within two feconds 5 and did not differ more than five 
Vol, LII. Ii feconds 
