C 184 ] 
Diftance r. Therefore f (j-^) ! P+ 8 (_«_)■ q mu n be 
put inftead of fC’+ge' 1 . Thus we fhall have 
aefe I ~ r ‘P , 2 p— icfAe 1 ^"? Scfae'+P irop' + l 
^ <--- [ — . 
3 +q 
3 + P 
+ 
3 + PX 5 + P 3 + p x 5 + p 
,*+q 
+_ 8 cg« e - + q for t | K Attraction of 
3 + qXj-f-q " T " 3 + qX)+q 
the Spheroid BE be at N. 
VI. If we make A — a, the foregoing Exprelllon 
will be reduced to this 2cfel + P . acfe^P* 
r + q j J_ q . 3 + P 5+P 
■ I 2Cge i 2cge which exprefles the At- 
+ 3 +q + 5 +q ’ 
itra&ion of the Equator. 
VII. If we would have the Attraction at any Point 
M within the Spheroid, in the Expreflion of the At- 
traction at N, we muft put t inftead of e. The Proof 
of this is plain from the fame Reafons that Sir I/aac 
Newton makes ufe of, (Corol. 3. Prop. XCI. L. 1. 
Princip. Math.) to (hew that the Attraction of an 
Elliptic Orb, at a Point within it, is none at all. 
Problem IV. 
Let RnrTT (Fig. 4.) be a Circle whofe Centre is Y ; 
'tis required to find the Attraction which this 
Circle exerts upon a Corpufcle at N, according to 
the Direction H Y $ fuppofing the Point H, which 
anfwers perpendicularly below the Point N, to be 
cat a very Jmall Diftance from the Point Y. 
VIII. Let there be drawn nH7r perpendicular to 
the Diameter RYr,. and let the Space RLIt be trans- 
ferred 
