(21) 



Wheels, and thofe differingly fcituated 

 and conne£led i but for all this variety 

 "twill ftill be but an Engine* I intend 

 not therefore by propofing the Theories 

 and Conjectures ventur'd at in the fol- 

 lowing Papers, to debar my felf of the Li- 

 berty either of altering them, or of fublii- 

 tuting others in their places, in cafe a fur- 

 ther progrefs in the Hittory of Qualities 

 {hall fuggelt beXter Hypothefet or Explica- 

 tions. And 'twas but agreeable to this In- 

 tention of mine* that I fhould , as I have 

 done, on divers occafions in the following 

 Notes, imploy the word Or, and express 

 my felf fomewhat doubtingly , mention* 

 ing more than one Caufe of a Phenomenon* 

 or Reafon of an opinion, without dogma- 

 tically declaring for either, lince my pur- 

 pofe in thefe Notes was rather to (hew* it 

 was not neceflfary to betake our felves to 

 the Scholaftick or Chymical Do&rine a- 

 bout Qualities, than to a& the Umpire be- 

 tween the differing Hypotlefes of the Cor- 

 fufcularians » and, provided I kept my felf 

 within the bounds of Mechanical PKilofo- 

 phyj my deiign allowed me a great lati- 

 tude in making explications of the Ph&m* 

 nun*) I had occafion to take notice of, 



FINIS, 



