AER IS IN T VBIS. 385 



X 



quac pcr e'' mukiplicata dat 



intcgnile e'' az—fe^ (a (/j -j d x) - c ay-zfe^^jdx 



-_X X 



idcoquc z ziy — ^ ^' f ^^ y "^ ^ 



intcgrali hoc it;i capto vt euanefcat pofito x zr: o, 



Sit iam tubus in A claufus , iliquc celeritas Tab. VlTr. 

 « fempcr efTe debct nulla -vnde fcala celcritatum ^'S- -5(5. 

 A N per puniflum A tranfeat neceflc cft. Cum igi- 

 tur eliipro tempore ?, pro quo (iimantur interualla 

 A T - A /- f ? z .r, ccleritas y quoque nulja prodire 

 debeat , quaecunquc fucrit lcala denfitatum C M pri- 

 mo effe oportet TN+i«:=o, leu (calae celerita- 

 tum A N continuatio A « ipd eft fimilis in con- 

 trariam axis partem difpofita : Pro continuatione au- 

 tem (calae denfitatum effe debet 



- a « (T M -;///)- a T M /m — o. . -;' 



Ponamus in hunc finem 



A T = A ; — .V, T M — jK et tm~z 

 haccque conditio ad irtam deducit aequationcm •. 



a[y~z)-\-fydx-\-fzdx-o feu ady-adz-\-}dx-\-zdx-o 

 cuius integralc e(t 



X 



e '^az-fe " {ady-^ydx)-e <'ay-\-2.fe <^ydx 

 ita vt pro hac continuatione habeamus : 



X — X 



z trj H- i- ^^/^"^7 d X, 

 Tom.XVl. Kou.Comm. Ccc Ccrcll. 



