tq 





, , q d q . t (i q n d t 



fiiie 



^ (;/ n '\- it)cl? -^n n ? d t ~ n n t d ( ~o, 



quarum vtraque manifefto elt integrabili«. Si igitur fub- 

 ftitutiones has principio in aequationem introducere in 

 mentem venidet, totum negotium fictllime confici po- 

 tuiffct. 



§. 7. Quo appareat formulam inuentam 

 C — -JL^Ls*! Pj±l1 •+■ P' 



-^fiK n ~i- Tp s -t- p p) 



effe Integrale aequationis propofifae , multiplicetur illa v- 

 trinque per denominatorem , vt habeatur: 



CV{Tjfi-\-2ps-i-pp) — nfj-\-p'hs-i-pj 

 ct fumto differentiali habebitur: 



c(pd,-^(p±j)_d_p)i — dp-\-ds^pds-\-sdp 



z:^dp {\-^ s)-Vd s (i -\- p) 

 el\ autem 



C . n n -» - p -»• » -t- ^ ^ 



V(n r. -H »p 3 ->^ P t) ' 71 II -+- 3 p s -+- p p » 



quo fubflituto et ordinata aequationc prodit tandem 

 dp^Y-py.nn + ss^^^ds^nn-^p^ + ps-^pps^-Q. 



PHY- 



