MOTVS FLVIDORVM, ^6^ 



colligitur fore 



^x = k^-i-e[-C-|)(if)+(if)(i|)][ ■; 



i^ f^^dY '^d v \d Y^^dzli y 

 [+«K'-|)(||)-lji)(^-4)]f 



i +v[-(^)(ii)+(^-i).Jl)] 

 t-^-«r-(i^x^)+(l^)(^-4)]T 



<*2rrfeH-+-e[(ii)(i^)-(li)(,^)]l 



l +v[(^-|)(2-^)-(j-i)(|4)] 1 



Inuentis nunc his differentialibus pro loco s^ habe- 

 bimus 



denfitatem rr^-^-^X(f4)-f-^Y(^)-|-^2(l|) et 

 preffionem :=p^dX{'^)-^4Y{^)-\-m'^> 



Coroll. I. 



jo6. Qiiantitas illa K quae in his fbrmulis de- 

 nominatorem conftituit fadla euolutione ita expri- 

 mitur : 



K=(l^)(:-f)(^-|)+('r|)C-v')(i^z)+('^x1l-4)(rl) 



Id Xv/ j z Vd y \ fd z\/d y^fd x\ /d_y \/d x \/d z\ 



^d y:'^d \ '^dZ' ^Tx^^dY^^d^' ^d X'^d\^^dZ^ 



quae expreflio iam immunis eft ab ordiiie coordina- 

 tarum. 



2x2 CoroII. 



