2i 4 DlLFCinATIONES 



parallela , ac ponatur CFizr* , aequatio intcr X etY 

 has proprietates habere debet , vt pofito f~ o , indfc 

 ipft curua AM refultet, feu fiat Xz;v et Y ~y , fia 

 autem ponatur f zzb — a , qno cafu pun&um / in ri« 

 pam cadet, \t tum fiat X~b qaicunque valor pro X 

 fit proditurus. 



XXVII. Hinc autem fatis probabiliter refiften- 

 tiam definire poterimus, qna corpus AMF in fluido 

 canali OCIfl datae amplitudinis CH~b motum pa- 

 titur , ad quera cafunr regula vulgiris non eft accom- 

 modita. Sit igitur celeritas , qiu corpus ftcundum di« 

 redlionem AO promouetur, —c, et riuuli axi proximi 

 amplicudo Qo~e; amplitudo autem corporis maxima 

 CF^«; vt fp:itium in can.ili refiduum fit FH ~b-a, 

 per quod cum fluidum omne defluere debsat , afliimo 

 enim, id neque fupra corpus neque irfra defluere polfe 

 amplitudo riunli in F/ erit -^czzf, vbi celeritas 



debita fit altituiini k vt fit kffzzcee, feu k~-—z~+ 

 Ponatur nunc pro corporis figura CPztat; PM— ^; 

 et pro riuulo CprrX et pm~ Y, neque hic erit 

 Y —yzzfy neque Y—yzze, fed medium quendam te- 

 nebit valorem , vt fit Y-jn-y- y ?, At eft Y— y : 



fAm-dx:-V{dx* + df) y vnde fit Mw^^ 1 

 Si ergo celeritas aqu:ie ad M defluentis debita fit alti- 



... . (h-y)*Mdx 7 -i-dy*) r cbhdx* 



tudini v, ent —%* —V—ceeJtuv-^yy^^jy-Ty 



XXVIII Iam vero fluidi prcflio in M ell per 

 refiftentue theoriam vcram aequalis altitudini C— v. 

 Std quia in F preflio debet effe nulla , euidens eft, 

 fore Cz. ~k~ $£-«)«> vn< ^ e prtflio in M tntzz^—— 



