->¥.^ ) 2S.5 ( r?^ 



+ 6 e' p p q q 



x' z=z e' V' -\- s e' ?' q^ 



» X* j ziz e' p ?^ -\- ^ e'' p ^^ Q_ 



-\-e' qV' 



x'yy — e'pp?'~\-3e'pp??(l 



^ 2e' p q?' 

 x xy' = £= /)' P P H- 3 f' p /) «7 P P 



xy* =:e' p'? -\- ^e' p' q? 



H- /• p* Q 

 y':=e' f -^^ e' p' q 

 x" = e' ?' 

 x'y = e'p?' 

 x'yy = e'pp?* 

 x'y' = e^p'?' 

 xxy' = e' p'?? 

 xy'' = e'p'? 

 y'=.e p' 



§. 15. Concipiamns niinc omnes hos valorcs in 

 nortris aequationibus (iibnirui, et quia quantifates P, Q, R 

 et p.q^r ab excentricitate f immnnes eflc debcnt, necefle 

 efl , vt jn his aequationibus omnes tcrmini, panbus pote- 

 flcuibus ipfjus e affedi , feorfim inter (1 aequentur, vnde 

 Ttraque aequatio in phires difcerpetur, dum fcih'cet om- 

 ncs termini fimphciter per e muitiphcati inter fe acqua- 

 les flatuuntur, deinde vero iUi termini , qui per ee funt 

 ; N n 3 affedi, 



