[ 79 ] 
the earth, which fhall agree with both theory and 
obfervation, whether admitting the fuppofition of the 
original fluidity of the globe, or not. 
But if the diameters were found undoubtedly in a 
greater ratio to one another than 230 to 231, 1 own, 
that not only the theory eftablifhed in this fecond 
part of my book muft be abandoned, but it would 
be very difficult to reconcile the meafures of the pen- 
dulums with thofe of the degrees in Sir Ifaac’s fyftem. 
And I dare fay,, that the fuccefs in that cafe would 
hardly depend upon any natural hypothefis. 
The fubfequent LXX article containing only a proof, 
that the preceding theory agrees with any ratio be- 
tween —y and j, for the quantity, which exprefles 
the excels of Jupiter’s equator above its axis, there is 
no neceflity for the tranflation of the arguments lead- 
ing to a refult fo anfwering to the obfervations ; and 
I pafs to the conclufion of that article, which ends 
my book. 
The preceding theory agreeing with all the mea- 
fures of the pendulum, and obfervations of Jupiter’s 
diameters, if, befides, it happen, that the meafures 
expedted from Peru give, when compared with thofe 
of Lapland, a difference of diameters lefs than - 2 Xo>- 
this theory will have all poflible confirmation, and the 
univerfal gravitation fo well agreeing with the motions 
of the planets will alfo agree with their figures. 
Now I beg every candid reader to examine, whe- 
ther, in that chapter quoted by F. Frifius, I have 
too much relied upon the certainty of obfervations, 
and attempted to difparage Sir Ifaac Newton’s dis- 
coveries. 
In 
