( M 7 ) 
« by the 8 th of the 6th of Euclid, and therefore the 
« Decreafe of Gravity at Q_is to the Decreafe of Gra- 
« vity at C, as the Square of C O is to the Square of 
a C D, which was to be demonftrated. 
“ From whence, it is plain, that if H C reprefent the 
« Decreafe of Gravity at the Equator, and G Cits De- 
tc creafe at C, then will G H reprefent the Difference 
« of thefe two Diminutions, or the Difference between 
ct the Gravity at Q,, and the Gravity at C, but H C is 
« toHG in duplicate Proportion of HCtoH B, or 
* of O C to D O that is, the Decreafe of Gravity at 
“ the ./Equator is to its encreafe at C, as the Square of the 
<c Radius is to the Square of the Sine of the Lati- 
u tude. 
“ By this alfo it will appear, that the Direction of 
« heavy Bodies is not to the Center of the Earth, as has 
« been always fuppofed:, for if we take a heavy Body 
< c and hang it by a Thread, the Thread produced will 
« not pafs through the Center any where but at the 
“ Poles and the ./Equator, for in the Figure the Thread 
44 is carry’d by the Centrifugal Force of the Body B, 
« from the Pofition A C into the Pofition A B, where 
4C it will reft. 
«'* Now to determine the Angle CAB, which the 
«< Line of Direction of the Body makes with the Line 
« A C, let A N be drawn parallel to B C, and pro- 
44 duce O B till it meet with it in N, and let us confider 
<4 t h e Body B as drawn by three Powers, according to 
14 t l ir ee different Directions BO, B L, and A B, the 
<4 Power which pulls it,according to B O, is its Gravity, 
“ that which draws it, according to the Direction B L, 
« i s i ts Centrifugal Force, and that which aCts accord- 
« in* to A B, is the Strength of the Thread, by which 
« the Body is hinder’d to move according to either of the 
44 two other Directions, and therefore it is an JEquilu 
Vol. XXXIII. N n “ brinm 
