[ 28 i 3 
Value of the whole Attraction of the Solid gene- 
rated by the Revolution of BDbEB: To which if 
we add the Attraction of the Sphere, we fhall 
3 ee 
have cd- 1+ — - - — for the required Attraction 
3ee 3ee 5e’ 
of the Spheroid upon the Corpufcle A. 
Problem II. 
Suppofing now the Spheroid Bebe (Fig. 2 .) to be no 
longer of a homogeneous Matter, but to be com - 
pos’d of an infinite Number of Elliptical Strata, 
all fimilar to BEb, the ‘Denfities of which are 
reprefented by the Ordinates K T of any Curve 
whatever VT, of which we have the Equation 
between CK and KT ; the Attraction is required 
which this Spheroid exerts upon a Corpufcle 
placed at the Tole B. ^ 
II. Making BC=e, CK=r, by the foregoing Pro- 
pofition, we Ihould have 
2 r 2 3 c j 4.C r 3 ct 4car 3 
for 
3 ee 3 ee 5 e 
the Attra&ion of the Spheroid KLK, if it confiftedof 
homogeneous Matter,- and the Fluxion of this Quan- 
tity 
2rrc r 
ee 
— - — iSlllL would be the Element 
ee 
or Moment of the Orb KLKklk. But becaufe the 
Denfity is variable, we muft multiply this Value of the 
Attraction of the Orb by KT, and the Fluent of this 
Quantity will be the Value of the Attraction of the 
Spheroid KLK. 
As to the Value of KT, which expreffes the Den- 
ftty of the Stratum or Bed KLKklk, we fhall take 
only 
