198 Gen . Roy’s Account of a 
o t // Ilf 
Perpignan is fouth from the Royal Obfervatory at Paris, by the 
mean zenith diftanc.es of four ftars, — — 6 8 it 5 2 
Hence Paris is fouth from Dunkirk - — 2 II 50 34 
Rodes is fouth from Paris, by the mean zenith diftances of two 
ftars — - — — — 4 28 59 45 
Hence Perpignan is fouth from Rodes, — — I 39 1 2 7 
And by a former refult it was found to be, — — 1391112 
Hence the mean of the two means gives, for the diftatice of the 
parallels of Rodes and Perpignan, — — - 1 39 1 1 28 
The tower of the great church at Dunkirk is northward from 
what was the ftation of the fedtor 84^ toifes, equal to 89.8 fathoms, 
which correfpond to an arc in the heavens of - 00519 
Wherefore the tower is north from Paris, - — 2 1 1 55 53 
But the point M is fouth from the tower 351 fathoms, which 
anfwerto an arc in the heavens of - - - 0 0 20 45 
Hence the point M is northward from the Royal Obfervatory at 
Paris, — — — — — 211358 
Now, from thefe data, together with the latitude of the 
Royal Obfervatory at Greenwich 51 0 zW 40", and that of 
Paris 48° 5c/ I4 // , we (hall have the latitudes of the feveral 
Rations between Greenwich and Perpignan, with their dif- 
ferences, or the celeftial arcs comprehended between them, as 
■underneath. 
Stations. Latitudes. Diff. or celeftial arcs. 
Greenwich Royal Obfervatory, — 
0 
51 
28 
tt 
40 
at 
O tit 
0 26 CO 
tit 
C2 
Point M near Dunkirk, — — 
5 1 
1 
49 
8 
Paris Royal Obfervatory, — — 
48 
50 
14 
2 11 35 
8 
Bourges, — — 
47 
5 
4 
41 
1 45 9 
19 
Rodes — — — 
44 
21 
*3 
3 6 
2 43 5 i 
S 
Perpignan (St. Javmes) 
42 
42 
2 
8 
1 39 11 
28 
This latitude of Perpignan 42 0 42' 
z" 
S'" 
is what 
refults 
fi om the immediate comparifon 
of 
the 
lengths 
of the celeftial 
arcs, 
