QVOTCFNQVE PONDFSCVLIS ONFSTL SP 



moriim z=:b\ ex liis determinari potcrit fitiis cuiusquc 

 corporis. Nam vis follicitans corpus E perE^aequa- 

 Jis efl: ^^—77-', quae aequalis cffe debet ^y~' ■> ^^^^ 

 ob aequalia corpora erit y- — 7' — ^. Efl: vero F/ 



-Ee:ef=a:f vndc Eez=.*-^. Porro cft E^-D^: 

 b2=:Ee:eS. et ¥(=.¥/— zEe-\-T)d. Vnde inucni- 

 nitiir D^^^-^Tt^'-^. Qiiia porro eft 5i-||- 

 ,E. g^ M=iC£_Di g^ Ej--.E^-2D^-|-Cc prodibit 



«a 



^^._aiep-„i.n^ti^^^ Simili modo ob "/=:^i 



-'-f^ ct c^=^^' et DrrzD^-sCf-f-B^ obti- 

 ncbitur Bi,- '^^-^f*-^^bP-^j^^;ff-^^^^f-^^^\ Q,,,e eft 

 diftantia quinti corpufculi a linea verticali. Hinc con- 

 cluditur diftantia corpusculi {n-\~i) indicis a linea ver- 



■ ,■ ^/, nb . n.(n— , 16» n (n— .) (n— :)6^ , n(n-iXn-0(n— ) &♦ 



— etc. ) 



§. x5. Si interualla OA , AB, BC etc. fuerint in- 

 finite parua, vt tanquam elementa curuae OABCD etc. 

 confiderari queant, innotcfcet hinc natura huius lineae 

 curuae, quae ofcillans tota eodem momento ad hneam 

 verticalem pertingit. Nam cum in quouis loco fit ^y^ 



C.Cc (D-|-E-4-E)Dr r r- r j r ■ a- ^ 



— T^— ji , fi fc lumatur pro abfcina et Qc 



pro apphcata, erit CQ. lubtangens curuaeinC, (D-t- 

 E -h F ) erit pondus omnium pondulculorum , quibu» 

 pars fih infra C eft oncrata, iV eft elementum abfcifllic 

 et Dr pcr differentiale lecundi gradus apphcatae dabitur. 

 Symbola crgo loco horum fubftituta cxpriment naturam 



curuac 



