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observations on this fide of the Equinodfial Line alone, 
that the Sun’s parallax is between 8 7 and 9", and that 
this determination is the fame or very nearly the fame, 
as when the obfervation at the Cape is compared with 
the fame places. I fhall all'o endeavour to prove, 
that there is a miftake of one minute in time in writ- 
ing down the time of the internal contact at the egrefs 
at Rodrigues, and that this being corrected, the re- 
fults of the Sun’s parallax, by a comparifon of the 
obfervation at Rodrigues with the observations at the 
feveral places on this fide of the Line , is the fame with 
that which refults from all the reft ; and this a^ree- 
ment is alfo an argument that there muft have been 
fuch a miftake in fetting down the time of the inter- 
nal contadt at the egrefs at Rodrigues. I Shall alfo 
Shew that the parallax of the Sun, determined from 
the obferved durations, and from the leaft diftance 
of the centers is very nearly the fame as that which 
is determined from the internal contact at the egrefs, 
though thefe laft determinations cannot be fo much 
depended on becaufe of the minute elements from 
which they are drawn. 
I Shall therefore proceed to compare the obfervati- 
ons of the internal contadt made on this fide of the 
Line only, and from thence determine the Sun’s par- 
allax. In order to do this it is neceffary that the dif- 
ferences of longitude between the places of obferva- 
tion, compared together, be well ascertained : and in 
the doing of this, in all places where the ingrefs was 
obferved, I have been much obliged to a very inge- 
nious method, propofed by M. Pingre in his aforelaid 
Memoir, to which I refer ; and for the longitudes of 
other places I have confulted the Philofophical Tranf- 
Vol. LIII. R r adtions 
