C 3 
the fame actually mcafured. In confcquencc of this,’ 
Mr. Celjtus concludes with obferving, that the Di- 
ftance between the Royal Obfervatory and the Per- 
pendicular to the Meridian of ColUourey deduced 
from the Triangles of CaJJlni-> correfled after Mr. 
Hiorters Method, (^c. will amount to but 358598a 
Toifes. This, divided by the mean Difference of 
their Latitudes, 6° 19' ii^', will give 56,803 Toifes, 
for the Length of a Degree, one with another, be- 
tween Taris and Collioure, which is lefs than the 
Length of a mean Degree found by Mr. ‘Picardy and 
pretty near the Truth: So that the Degrees decreafe 
as you go towards the Equator j and confequently 
the Earth is higher at the Equator than at the Poles, as 
Sir Ifaac Newton and Mr. Huygens believed. 
The Diftance of the Parallels of Paris and Coi~ 
lioure by this Method is indeed lefs than that com- 
puted by Mr. Cajjini^ but this cannot reafonably be 
complained of, Ence thefe computed Meafures of Mr. 
CaJJini feem very capable of being leffened 5 and it 
is no more than what Mr. CaJJini himfelf hath done 
to the Meafures publifhed by his Father, which he has 
fhortened by 3257 Toifes. But however that Matter 
be, whether this particular Correction of lAx.CaJ/ini’s 
Diftance, and, confequently, Length of a mean De- 
gree, be admitted or no, Mr. Celjius is fully per- 
fuaded, upon the Whole, that he hath made it plain 
to every unprejudiced Reader, that thefe Two Sets of 
Obfervations in France are not taken with fuch a 
Degree of ExaCtnefs as to be depended upon, in deter- 
mining fo nice a Matter, in Difpute for 50 Years, as 
the true Figure of the Earth ^ which was the thing 
propofed to be done by them, 
II. A 
