CONTENTS. six 



APPENDIX. 



Dissertation on the Principles of the Newtonian Philo- 

 sophy. 



CHAP. I. 



An Inquiry into the Principles of the Newtonian Philofophy belongs to this Work— 

 The Queflion concerning the Motion of the Celeftial Bodies of great Importance 

 with rcfpe£l to Natural Religion, and the Do6lrine of rheifm— This Do£lrine con- 

 fifts of two Parts — The Philofophy of Des Cartes repugnant to the better Part of 

 Theifm — The Philofophy of Sir Ifaac Newton not fo Material and Mechanical as 

 that of Des Cartes — The Principles of it, however, ought to be carefully examined, as 

 tending to the DKbslief of the Providence of God in the greateft part of the Vifible 

 World — The Account of the Motion of the Celeftial Bodies given by Sir Ifaac— 

 Their Motion compofed of two Motions of Projeifiion and Gravitation— One of 

 thefe two Motions Mechanical — Sir Ifaac's Philofophy in his Principia incompleat, 

 as it accounts only for one of thefe two Motions — Sir Ifaac in vain endeavoured to fup- 

 ply this Defe6l afterwards— All the Caufes of Gravitation that can poflibly beaflTigned 

 — The lafl Caufe mentioned, viz. the conftant Agency of Mind, the true Caufe — 

 This adopted by the Newtonians at prefent, and a great Improvement of Sir Ifaac's 

 Syftem — But a farther Amendment is neceflary p. 497 



CHAP. II. 



The Queflion betwixt Sir Ifaac and the Antients ftated — a Qucdion not within the 

 Sphere of Mathematics, but belonging to the Firft Philofophy i it relates to the mo- 

 ving Powers in the Univerfe — Thefe either Mind or Body — Body moves Body 

 only by Contact — therefore no fuch thing as its Action in vacuo — The manner 

 in which body moves Body threefold — The Manner in which Mind moves 

 Body altogether different — well defcribed by Dr Clarke— The Diflin£lion of 

 the Different Kinds of Motion applied to the Solution of the Queftion — Accord- 

 ing to Sir Ifaac's Hypothefis, one Part of the Planetary Motion produced by 

 Mind immediately ; other two Parts of it produced only mediately by Mind — But 

 all the Motions proved, by fundry Arguments, to be immediately produced by 

 Mind — Projc^lion and Gravitation fuch mere Hypothefes, that fome Newtonians are 

 difpofed to give them up ; but they fay the Circular Motion has, by its Nature, a 

 Tendency both to and from the Center — This Hypothefis examined in the next 

 Chapter p. 509 



c 2 CHAP. 



