( J ) 
this Obfervatioti, I foon found that there was a Fault 
in the Day, and likewife in the Star; for that A of 
Virgo was then nearly in 5 Degrees of Scorpio, and 
the Moon would not be there till the next Day, 
Monday the of Attgujl\ and the Latitude of A 
being about half a Degree North, the Moon at that 
Longitude would be about 3 Degrees more South- 
erly than the Star, and conlequently far from Eclip- 
fing it; for that at that time the defcending Node 
was in the very Beginning of Libra. Hence I con- 
cluded it mull be fome other Star, that Pere Fcuillee 
obferved Eclipfed by the Moon: The Day was cer- 
tainly the and not the 19'^ of Augufi, as was 
evident by the Place of the Moon ; but as to the Star, 
it was neither in the Tychonick Catalogue, nor yet 
' in that more copious Britijh. Catalogue of Mr, Flam» 
fietd ; but turning over thsh: of Hevelius, I found a 
Star whofe Situation agreed well with the Obfervation, 
and was undoubtedly the Star that was feen to im- 
merge behind the Moon .* The Place Mr. Hevelius 
gives it, allowing the Preceflion of the Equinox, was 
then m 1° 56'^ with South Latitude 51 '4. ft re- 
mained then for me to be allured of the Place of this 
Star, and accordingly on the and 24*^ of Decem- 
ber lad, I got fuch Obfervations by help of the cir- 
cumjacent Scars, that I was aflured the Place of the 
Star, (which is a fair Star, of the Magnitude) was 
at that time, m 1® 58' 40" with South Latitude 2° 5*4' 4, 
being above z' in Longitude, and 3' in Latitude, 
more than Hevelius gives it. The Hour of this Oc- 
culcation is fee down precifely 9^ 5' 38'' at Buenos 
Aires, the Latitude of the Place being 34° 3 5' South. 
Whence the Altitude of the Moon there was then 42° 
48', and the Paralladick Angle 76° 38', and the 
Parallax in Longitude 40' 11" to the fTr/ and in 
A 2, Latitude 
