[ *95 3 
Gravity will increafe lefs from the Equator towards 
the c Pole y than according to the Table which he has 
given for his Spheroid $ Prop. XX. of the 3d Book, 
And on the contrary, if the Spheroid is not fo flat , 
the Gravity will increafe more from the Equator 
towards the T ole. 
XXIV. Tis thus that Sir lfaac Newton exprefles 
himfelf about it, when he relates the Experiments 
made towards the Southy concerning the Diminution 
of Gravity, which Experiments make it greater than 
his Theory requires. He affirms^ 
that the Earth is denfer towards the 
Centre than at the Superficies, and 
more deprefs’d than his Spheroid re- 
quires. But by the foregoing Theory 
we may eafily perceive, that if the 
Denfity of the Earth diminifhes from 
the Centre towards the Superficies, 
the Diminution of Gravity from the 
Pole towards the Equator will be 
greater than according to Sir Ifaac'% 
Table ; but at the fame time the 
Earth will be not fo much deprefs’d 
as his Spheroid requires, inftead of 
being more fo, as he affirms. Yet 
I would not by any means be underflood to de- 
cide againft Sir Ifaac's Determination, becaufe I 
cannot be allured of his Meaning, when he tells 
us, that the Denfity of the Earth diminifhes from the 
Centre towards the Circumference. He does not 
explain this, and perhaps inftead of the Earth’s being 
compos’d of parallel Beds or Strata y its Parts may be 
P p a con- 
Et excejfus longi - 
fudinis Penduli Pa - 
riftenfts fupra Ion - 
gitudines Pendulo- 
rum ifochronorum in 
his latitudinibus ob- 
fervatas , funt paulo 
rnajores quam pro 
Tabula longitudi - 
num Penduli fupe- 
rhts computata. Et 
propterea Terra ali- 
quant o altior eft fub 
aquatore , quam pro 
fuperiore calcuhj & 
denftor ad centrum 
quam in fodinis 
prope fuperficiem. 
