( ^4 ) 
fame with the ratio of the Velocity of the Globe to 
the Velocity of the Globe B. But fmceit is (hewn, that 
the EfTecff of the Oppofition made by the yielding Sub* 
(lance to chefe Globes is two-fold, and that one part 
of the Effect: of the Oppofition made to the motion of 
the Globe A, is equal to one part of the EfFedf of the 
Oppofition made to the motion of the Globe B; and 
that another part of the Effecii of the Oppofition 
made to the motion of the Globe A^ to another pare 
of the EfFedl of the Oppofition made to the motion 
of the Globe B, is in the Duplicate - ratio of the Velo- 
city of the Globe B^ to the Velocity of the Globe 
A. One part of the Oppofition it felf made to the 
^motion of the Globe A, will be to one part of the 
Oppofition againfl the motion of the Globe B, as the 
Velocity of the Globed, to the Velocity of the Globe 
B, and another part of the Oppofition to the motion of 
the Globe A, to another part of the Oppofition to the 
motion of the Globe B, will be as the Velocity of the 
Globe B, to the Velocity of the Globe A. So that 
•when the Globes bear upon equal Portions of the yield- 
ing Subffance, the Oppofition to their Motion will be 
in part as the Velocity of the Globes, and in part 
reciprocally as their Velocity. Hence, becaule the re- 
fifling Subfiance is of an uniform Texture, the Oppo- 
fition to the Motion of either of the Globes in its pre- 
fent Situation, and when moving with its prefent Velo- 
city, will be to the Oppofition it would meet wit h in 
the fame Situation, if it moved with any other Veloci- 
ty, partly as the prefent Velocity to that other Velo- 
city, and partly as that other Velocity to the prefent. 
Ikit by that part of the Oppofition made againfi the 
■ motion of the Globe, vvhich is direifily as the Velcci- 
■ ty, the Globe can never be' wholly fiopt ; for upon 
the flopping of the Globe, that part of the Oppofi- 
tion 
