S\S DISSERTATION ON 



This Is a queftion that I do not think of great Importance, 

 as the point of the projedlle impulfe, and of the planets being 

 carried on by that impulfe, is given up, and it is admitted that 

 the bodies are moved, in all their feveral motions, by the imme- 

 diate and conHant agency of Mind. It was on account of that 

 principle aflumcd by the Newtonians, and which, I think, is a ftep 

 towards materialifm, that I have been led to make thefe obferva- 

 tions upon Sir Ifaac's philofophy. That nothing, however, may be 

 omitted, concerning the principles of a philofophy which is at prefent 

 fo generally prevalent, I will likewife examine this pofition, the more 

 efpecially that I have to defend here likewife the dodrine of my Ma- 

 ilers, the Antients, who have aflerted that the circular motion is as 

 fimple as the redilineal *. 



* Sec Ariftode, D^ Coeh, cap. 2. ubi fupra. 



CHAP. 



