[ 339 ] 
It appears, I think, not only poffible, but highly 
probable, that obfervers may be Rationed in the South 
feas. I have, therefore, computed the paralladtic 
angle for different longitudes and latitudes, anfwering 
to fuch places whofe pofitions feem to be mofl cer- 
tainly known ; the refult of which calculations is 
given at one view in the following Table. 
W.long. 
S. lat. 
Places Names, 
Firft 
intern. 
contaft 
Second 
intern. 
contaft 
u Owoo 
11 
Difference in 
tot.dur. from 
Torneao. 
155 42 
133 0 
>73 0 
190 0 
zt 0 
9 3 ° 
ZO 30 
0 
[(land of St. Peter 
Mendoza Illes 
Amfterdamand Rotterd. I. 
Terra Auflralis 
6 10 
4 3 > 
6 19 
5 43 
6 06 
6 49 
4 42 
3 >6 
12 16 
H 20 
1 I 01 
8 
' It 
23 S® 
aj «o 
22 4t 
20 39 
By the laft column it appears, that if an obfcrver 
be Rationed in any of the above places, perhaps in 
any part of the South feas where the whole tranfit is 
vifible, and the total duration obferved there be com-r 
pared with that at Tornea®, we may obtain a differ- 
ence in time from 20 to 24 minutes j which is in- 
deed fo confiderable, that the fun's true diftance mufl 
be afcertained more exadly than can poffibly be ex- 
pected from any other method. 
But, if it fhould be found impracticable to ftation 
an obferver in the South feas, the lofs may in a great 
meafure be repaired, if the tranfit be obferved in fuch 
parts of North America where the whole is vifible. 
At Mexico the total ingrefs will happen when the 
fun is very near the meridian j and, if the longitude 
of the place and the general computation may be de- 
pended upon, the beginning of egrefs will happen 
towards the time of fun-fet, when the apparent alti- 
tude of the fun will not much exceed four degrees. 
X X 2 Obfervers 
