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u Tub e, & that the Surfaces CEand FJ are equally 
<f P^ fs ’ d b 7 the incumbent Columns B C E D, and 
GF 1 H, but if one of the Legs of t his Tube llaou’T 
(c be fill’d with Oil, or fome other lighter Fluid, and* 
<c the other with Water, the lighter Fluid will rife 
“ higher than the other, for otherwife, thefe Surfaces, 
which are equally diftant from the Center, wou’d' not 
“ be equally prefs’d. 
Juft fo if P /EMP.S, * reprefents a fluid Sphere, 
<£ which we may imagine compofed of a great many 
communicating Canals or Tubes, the Fluid in every 
“ one of which prefles upon the Center*. now if the 
“ Fluid, in every one of thefe Tubes, was of equal 
cc Weight or Gravity, it is plain, that, by that means, 
f£ they wou d be alfo of an equal Height from the Cen- 
“ ter * for by that means only, wou’d the Center be e- 
“ qually prefs’J by the Weight of all the Tubes- but 
ll tiic. Fluid, in the Canal fp OA1, were, lighter that? 
“ the Fluid in the Canal P OS, it is plain, that in this 
“ Cafe, the Fluid POS, prefling more on the Center, 
‘ than the Fluid in the Canal JE O M, the Surface of 
c< the Fluid TOM, will rife, to a greater Height or 
“ Diftance from the Center ; fo that by its greater 
cc Height, which recompenfes its letter Gravitation, it 
“ will prefs equally upon the Center with the Fluid in 
“ the Canal POS. After the fame manner, f if the 
“ Fluid in the Canal G O H, were heavier’than the 
“ Fluid in the Canal TOM, but lighter than that 
“ which is in P O S, then wou’d the Cinal G OH be 
<c flaorter than TOM, but longer than P O S, and the 
“ Figure, compofed of all thefe Tubes, wou’d be in the 
“ Form of a Spheroid which is generated by the Cir* 
“ cumrotation of a Semi-ellipfls round its Axis- but as 1 
Fig. IN. Fig. IV. 
tc have 
