Preface. 



ticular in relating the Phenomena 

 Earthquakes J and dwell fo long upon that 

 SuhjeB in this Jhorter Worl^. 



Thefe I intend for Example and Dire-^ 

 Bion to the Reader how he may fatisfie 

 himfelf in any of the other Heads. 'Tis 

 impojfble for me to forejee the Difficulties 

 and Hajitations of eDery one : they will he 

 more or fewer ^ according to the Capacity of 

 each Perufer^ and as bis Penetration and 

 hjtgkt. into Nature is greater or lejs. They 

 who haDe Jttention enough to t^ke in the 

 intire Platform as here laid down : who 

 fee the Chain which rhns through the whole: 

 and can pick ^^^^ hear in mind the Ob- 

 fery)aUons and Proofs here and there as^ 

 they liCy and then confer thm with the 

 PropofitionSj will difcern [in great mea- 

 jure ) how thefe Propofitions flow from 

 them : hut they who cannot fo eafely do this 

 mujl he intreated to haDe a little faiience^ 

 untill the Thing he further unfolded^ and 

 more amply and plainly made out. 



A few 



