[ 639 3 
Corollary. 
If the bent canal ADF, inllead of being infinitely 
continued, meets the cyliiidric canal in E, as in 
fig. i6. the repulfion ot P on the fluid in the bent 
canal A D E, in the diredlion of the canal, will Ifill 
be equal to its repulfion on that in the cylindric ca- 
nal AE, in the diredion AE. 
PROP. XXIV. 
If two bodies, for inflance the plate A B, and the- 
body H, of Prop. XXII. communicate with- 
each other, by a canal filled with.incompreflible 
fluid, and are either over or undercharged, the 
<^uantity of redundant fluid in them will bear 
the fame proportion to each other, whether the 
canal by which they communicate is ftraight or 
crooked, or into whatever part of the bodies the 
canal is inferted, or in whatever manner the 
two bodies are fituated in relpedt of each other; 
provided that their diftance is infinite, or. fo 
great that the repulfion of each body on. the 
fluid in the canal fliall not be fenfibly lefs than, 
if it was infinite. 
Let the parellelograms AB and DF (fig. ly.^^re- 
prefent the two plates, and H and L the bodies com- 
municating with them : let now H be removed to 
h-y and let it communicate with AB, by the bent 
canal gc the quantity of fluid in the plates and 
bodies 
