PHYSICAL AND LITERARY, in 



to a ftate of abfolnte reft. Yet, after' all, 

 as every one has-heard,- that the refinance 

 of a perfe(5l and incoihpFefTitDle flu"d, was 

 in the- duplicate ratio of the velocities ; 

 this was foundation enough for a lover of 

 peace, to affert roundly, that the impref-- 

 fions made in a fluid w-ere in that fd-ti<jf 

 likewife. Greater ftretehes might well be 

 permitted for the accompliihment of fo 

 defirable an end, as a compleat union and 

 harmony amongfl philofophers. 



Wken one body ftrikes upon another 

 with a great velocity, the parts immedi- 

 ately impelled are fometimes broken off or 

 driven away beyond the reach of attrac- 

 tion, before they have time to draw the 

 other parts after them with any obferva- 

 ble force ; and the force of cohefion, ha- 

 ving oppofed the impinging body for fo 

 fhort a time, makes no fenlible refiftance 

 to it. The attraction of cohefion acSling 

 without interruption, any refiftance made, 

 or any motion communicated by it, muft 

 be gradually produced ; and confequent^ 

 ly, in a very fmall time, the eSedt wilt be 

 proportionally fmalh Of this we have 



many 



