i6o 



A{±r-*'^')b ___ J(±r-*-4"')i _. 



Eadem rurfus operatio in his terminis inftituatur , qui 

 habiti funt affefli figiio /, & politis 



^' ( rt r -+- / -H a" ) A -H i? ( --h r -t- /' H- a') ^ = .5', 

 ^ ( :+- r -H ^' -H a " ) i -H C ( -*- r -+- ^"' -+- a' ) g" = C, 

 &cB {-^r-^q -h a" ) i -t- C (rt r -H /" -H a") A = r , 

 obtioebitur 



"♦"/•-t-Jj' 



-f-r-t-jj'-f-}'/ 



— //4"(±:r-*-x9'-*-a'0/lx- ^xX" 



—fA'Xztr-^iq'-^a"') i X- dxX' ■ 



-f.r-l-lf'-l-}''' 



^fB'X-^r-^-q'-^-f-^a") hx- dxX' 



—fB'X±r-hq'-t-q"-h2") ix±'-^f'-*-i"-*-i"' 



-f 



fC'x- dxX" = -~-^-;j-—- x~ X'*' 



—fC"(:±r-^j'-hq'"-i-a') g x' dx X' 



—JC"{:±r-\'q'-^q"'-^a")h x" dxX'' 



—fCX-±r-i'q'-hq'''-h2'")ix~ dxX' 



