[ * 9 ° 1 
XV. If we now confider, that 
The'ExpreJJlonfor ED (Fig. 6 .) being taken for the 
the Gravity at any . r " , v • 1- i . 
Flace on the Sthi centrifugal Force in E, then will 
roid. x MN exprefs the centrifugal Force 
in'N, and confequentJy MI will be 
fuch a Part of this Force as afts according toNCj we 
' , cfe I + P* , gcae 1 "* - ^ 
fhall have ° cfe A | 
3+pxj+p 3+qx^ + q 
from the Attraction at N. Hence 
I + P Scf tt e r + P 
to be fubtrafted 
2 cfe I+ P 
2p — iocfAe 
r t r ^ ^ 1 c. |Ouiac , 
n r~i— . r-f= r~—r— ~ — r= + 
i c g e 
3 + P 
i+q 
3 +P X 5 + p 3+P x 5 + P 3 + q 
IOCsAeI+q ■ sce«e I+q wiU be the Gn . 
■ . 2q — iocgle 1 't , s c a a e 1 ’ 
3 + qX5 + q 8 + qX5-(-q 
vity at N. 
XVI. In this Value making a =<*, we fhall have 
*Fhe Gra— . i —I— p ■ 1 c i E p i q 
•vity at the acfe Tll ,ap-2cfae acge 
Equator. 3 + P 
3 + PX 5 + P ‘ 3 +q 
2q — 2cgcte £ or tbe Gravity at the Equator. 
3 +qxs+q 
XVII. If we fubtraft the Value of the Gravity in 
N from the Value of the Attraction or Gravity at 
the Pole, (Art III.) we fhall have IO “ 2pcfAeI+P 
x + q 
3 + PXJ + p 
,10 — 2 qccrAe -1 ' 1 ^ . * r » 1 
■~r — - - — • - — • But it is eafy to perceive, that 
3 + q x 5 + q 
A is proportional to the Square of the Sine of the 
Arc PM, or of the Complement of the Latitude. 
Whence we may therefore conclude, that the Dimi- 
nution 
