Mifcellanea Curio fa. 



3. In order to the Computation hereof, I firft 

 premife this Lemma> (as the moil rational that 

 doth occur for my firft footing,) That (fuppofing 

 other things equal) the Refinance is proportional 

 to the Celerity. For in a double Celerity, there 

 is to be removed (in the fame time,) twice as 

 much Air, (which is a double Impediment) in a 

 treble, thrice as much , and fo in other Propor- 

 tions. 



4. Suppofe we then the Force imprefed (and 

 coniequently the Celerity, if there were no Re- 

 fiftance) as 1 ; the Refiftance as r. (which muft 

 be lefs than the Force, or elfe the Force would 

 not prevail over the Impediment, to create a 

 Motion.) And therefore the effective Force at 

 a firft Moment, is to be reputed as 1 — r : That 

 is, fo much as the Force impreffed, is more than 

 the Impediment or Refiftance. 



5. Be it as 1 — r to 1 ; fo one to m. (which 

 m is therefore greater than 1.) 



6. And therefore the effective Force (and 

 confequently the Celerity) as to a firft Mo- 

 ment, is to be — of what it would be, had 



m 



there been no Refiftance. 



7. This — is alio the remaining Force af- 

 ter fuch firft Moment ; and this remaining Force 

 is (for the fame Reafbn) to be proportionally 

 abated as to a fecond Moment ; that is, we are 



to take — thereof, that is — — of the imprep 

 m mm 



fed Force. And for a third Moment (at equal 



diftance of time) — - — for a fourth ; and 

 mmm m 



fo onward infinitely. 



%. Becaufe 



