( 2 4 }-*%) 
tt have already fhe w’d, that if AdO M repfefent the Se~ ' 
« midiarneter of the ./Equator, that all Bodies -in it are 
« lighter than in P O S, the Axis of the .Equator 
« (we take the Diameter and Axis here, not as pure 
“ Mathematical Lines, bu: as fmall Cm ils or Tubes.,) 
«< and juft fothofe Bodies which are in the Tube G O H, 
« 1 have prov’d to be lighter than thofe in P O S, but 
« but heavier than the Bodies which are in fEO M, 
££ the Centrifugal Force in GH being lefs than that 
££ which is in iEM, and there is no Centrifugal Force 
££ in the Poles P S. t is plain, therefore, that the Tube 
££ TOM will be longer than GOH, and G O H will 
££ be lunger than PCS,, that is, the Diameter of the* 
££ ./Equator, will be longer than the Axis of the Earth, 
a a nd cOnfequently the Figure of the Earth will be af- 
££ ter the Fafhion of a broad Spheroid, which is gene- 
« rated by the Rotation of a Semi-el 1 ipfis round its lef- 
c fer Axis. Phis, I hope, will be fufherent to convince 
c Theorijl of the Falfenefs of his own AfTertion fince- 
££ it is plain Demonftrafion, than an Earth, form’d from 
t£ a Chaos, mufthave a very different Figure from what 
c he fuppofes it had. 
‘‘ But I will now proceed farther, and inquire how 
C£ much the Gravity is diminifh’d at the ^Equator, or- 
£ < any other Parallel by the Centrifugal Force, which 
tC all Bodies acquire by being turn’d round the Earth’s 
“ Axis, that from thence we may endeavour to deter- 
<• mine, what Proportion the Diameter of the Earth’s' 
<£ /Equator has to its Axis; to calculate which, I will 
tc firft fuppofe, that the mean Semidiameter of the 
<£ Earth is 19615800 Tarts Feet, accordingto the hte 
“ Obfervations of the French Mathematicians, and fince 
£C the Earth turns round its Axis in the Space of zy 
«:• Hours, 5 6\ for in that Time, the fame Meridianre- 
turns to the fame immoveable Point of the Heaverr 
“ agiin 
