On the floating of Cork Bells, 1 8 1 



ftatical principles by Dr. W. J. Gravefande, &c. 

 for, as every body which fwims imprefles the 

 fupporting fluid with a force equal to its own 

 weight, the fluid reafls and prefles the fupported 

 body with the fame force. The fides of the 

 body are alfo prefled by the furrounding fluid 

 with forces which are as the depth : and if the 

 encompafling water be raifed by capillary attrac- 

 tion, the preflTure will ftill be the fanne, or equal 

 on oppofite fides, fo that without force the body 

 cannot move ; but if it be placed fo near the 

 fide that the water elevated by it joins that 

 elevated by the fide of the veflel, or by another 

 ball, the prefigure on that fide is diminilhed, while 

 that on the other fide, remaining the fame, will 

 caufe it to approach the fide or other ball : and 

 in the fame manner, if the fluid is depreflfed, 

 when the cavities meet, the preflTure on that 

 fide will be diminiflied, and the bodies of con- 

 fequence approach each other or the fide of the 

 veflTcl ; and the recefs in the third experiment 

 is evidently owing to the preflure being fuperior 

 on that fide nearefl: to the glafs, when the fluid 

 is elevated above it, and the elevation round the 

 ball joins the declining furface near the edge. 

 Some indeed have drawn direftly the contrary 

 conclufion j but when the elevated water which 

 furrounds the ball, and is fupported by it, is 

 caufed with one fide to join the declining fur- 

 face of the fupporting fluid, it muft then gra- 

 N 3 vitate 



