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advantage, into whofe hands, it may hot- 

 withftanding chance to fall — As therefrom 

 their own judgment is left at the fuller 

 liberty — And as they are not awed to 

 give up a lingle doubt to any jurifdidlive 

 Pens. 



My own purpofes and good wifhes 

 will likewife be the better anfwered among 

 fuch my Confraternity — As their own free- 

 thinking on the fubjed: will the readier 

 facilitate their making of many more dif- 

 coveries, than if conftrained, as it were^ 

 to content themfelves with bare, humble 

 imitations only — Or at mofl with making 

 of a few petty, inconliderable amendments 

 on fuch their more Mafterlike Mechani- 

 tians. 



As to the fmaller inaccuracies, which 

 from the unlimited exercife of their own 

 ingenious faculties, and the Sovereignty 

 over their own thoughts, which they may 

 find herein, it is poffible^ I might have 

 faved them the trouble of animadverting oti, 

 had I not of late difcontinued my further 

 Refearches of this kind, for want of bet* 

 ter Health i and the fame at this Urm 



will 



