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On the FORCE of TESTIMONY zn efiahUfhing FACTS con- 

 trary to ANALOGY. By the Rev. MATTHEW YOUNG, D. D. 

 S, F. T. a D. & M. R. 1. A. 



II n'eft pas fi glovieux a I'efprit de Geometrie de regner dans la Phyfique que dans les chofes 

 de Morale, (1 cafuelles, fi compliquees, fi changeantes. Plus une niatiere lui eft oppofe ec 

 rebelle, plus il a d'honneur a la dompter. 



' FONTENELLE. 



2i.RIST0TLE obferves, that the chief charaderiftic of cjuantity Read,Feb.3d 

 is, that it is. that by which any thing may be denominated equal '^^ ' 

 and unequal. Prsed. p. 34. Ed. Sylb. Every thing therefore is faid to 

 admit of quantity, which is capable of more and lefs. Hence quan- 

 tities are reduced to two claffes, thofe which confifl: of parts, and 

 thofe which are eftimated by degrees : accurately fpeaking, the 

 former alone are quantities, the latter are fo only metaphorically. 

 " Propter fimilitudinem dicuntur quantitates, quantitas perfec- 

 " tionis, quantitas virtutis, intenfionis,' valoris, & fimilium.. In 

 " his enim eft fimilitudo quagdam quantitatis, quae in eo pofita 

 " eft, quod iicut quantitas molis dicit extenfionem quandam par- 



" tium 



