IN MEDIO OJVCrNQJ^E RESISTENTE. i+i 



~L;«. Qimrc celeritns, qua elcmenta L M ct L ;;/ per- 

 curuuitiir, debetur akitudini ^'- celeritiis Ycro pcrMN 

 altitudiiii 'v-]-p^Jx — -^L]Sly et celeritas per wiN alti- 



tudini v-\-pdx— ~Lm. 



§. 14.. His cum noftro lemmate comparatis habe- 

 bimus q^'u\ q-^-dtzzV {v-\-pdx- — LM)=zyc4- 



p^,,-^.LM. ^^^^^^^^^ dtzr^ P^'^-^^' . Atque^4- 



fl'^H-^^a-y(rj-f-/)^;i~^L;/0-"l^-^-i-^^^^ 



'^nLM-L;;/) in.YUMm 

 Ex his fiet ergo dd^~ -j^ -'Vc^nTvI) 



dd^ nj^^dj ^ . . ... 



confequenter -^^^^-^^.y^s Seq"^"^ iS^^""^ <^^ '^'^ 



orietur aequatio fmgmis per 2 V 1' multiphcatis , — 573— 



pdxdy '■J^dv 'o^dy ^ , , , , , , 



— -T— — - — ^ H ^ feu 2 1; r/.x' «'^/j ir: jD rt> ds-. 



Hanc igitur proprietatem , -vt fit o? — f^.^^, curua bra- 

 chyftochrona habere debet , ex eaque focile erit eam in- 

 uenire, 



S 3 §-i5' 



