Ergo {propter diflMtla^ momenta froportioniiles) in DRyffimptk 
ftaiAS, miLD'^-^DladfA^^^^h- ABO ^^74- 
que ^JC parallela AX eccnrrente SX in K j erit in (jm^-a ) AK^ ( titfote 
cujas fingnUfunEla in ear<^tione dijiant S AD^ Acr,) Centrum grav it at is 
HFD. quidem AK efi eadempofittQne reElacHm AGs qfiomdm utraq'y 
turn per A tranfit^tMm per QentrHm Gravitatis BPD\ 
Similiter ( oh eandem caufam,) in frmpta aLj qua fit ad AS^ nt 
I H 5 ad fA^ ' ' ABO - | JXr+^ZP; dMa^ue LK parMkAj^, 
occHrrente SX in K ; erit in (jm^aj AIC {cm'jhs uticjm fingnh fm^a in es 
ratione difi-ant A^, A<r^) centrum gr^vit^itis HP^D* Erit autem hoc 
K idem q^odprim J ob cmfam modh infinuat^am. 
IZ, Similiproce^UtitenduminfptftioexterioriOVHS. 
Bfi enim {ut jam oHenfum) hnj^^s^refpeEiu A(r , momentum ABO- 
Item^ refpe^lf^ AX, Trimguli ASX=:fA^ eft {propter centri ab AX 
difiantiam 3 AJf)momentf^m^A^Jl'-y & fimiiiter^ Trianguli AOVy mo- 
mentHm\E^sJ\''i Tridngu.ique HDX-=>iXT {propter diftantikm jH) mo- 
mentum \XTtl h ipfififq^e HVD {ut modo ) ~LD i-^D^, Ergo ( propter 
OVHS^ASX- AQV^ HDX - HVD,) ipftmOVHS, refp^^H AX, mo- 
mentum\A^^\ - f^Vi - iXTH - ^LB' 7f D\ 
Ergo (propter di ft ant iM momentis^ proportionates ^) in DH^fumpta Dl, qu£ 
fttMAS, miA^Ji^lE^^^- iXTH' ^LD"- -^-^D^ad ABO : datla^ 
que IF piralielA AX, occurrente SX in F h. erit in ( junEla ) AF ( cujus 
punEia fingula inea ratione diftant ab AX\A<T.)centrHmgravitati4 OVHS^ 
Idem obtinebitur comparando ejufdem OVHS momenta refpe^t^ Aci^&AA\ 
vel AXi^ A^ '•) eandem autem AF prodire necejfe erit^ ut qudi. tr an fire de^ 
heat turn per A , turn per ipfim OVHS centrum gravitatq, 
1 3 , Simili item precejfu utendum eft in f patio exteriori AVHdk^ 
Eft enim ( ut modo ) hujus refpeHu A A momentum -^S^W^^ H}. 
Idem^ refpeEiu AX*^ reEhanguli ADHa momentum fKH'' \ nnde fuh- 
du^o ipfiii4 HVD momento^LD'^ '^I>^ h hdebitur ipfim AFHa refpe^'fi 
AXmomentumiKH'- ^ ILB"^ ' ^^B^, 
Ergo^ in aH^ fumpta aM , qu^z fit ad DH , ut -S'H f '^^ H h ad 
iKH^ - ~LD^ - Z>^ • erit in (jm^ia) A AIC cujus fingula puncta in ea 
rmone diftmt ab Aa.AX, ] centrum gravitatk AVE A. 
Idemque obtinebitur comparatis e]u[demmomenti6 refipetiu Aa^ & AaS 
vel refpetiu AX^ & Atr : eandem autem AM prodire necejfe erit^ob caufam 
mte infinuatam : Vt non ftt /pes inde^ ob duas ejufmodi reHra^^ fe mutuh 
dee ujf antes, ^ tpfum centrum obtinendi, abfque Plani magnitudine. 
Si vera in his omnibus vel non fvt S Ajt ang. re^m ; vel Hyperbola, vel Sea- 
lena (fumpta Biametro quavls alia loco Ax^ AXh ) fimilis adhibenda erit ac- 
commodatio cum ea^ quam de 'Scalenis infwnavimus ad § K prop. 3 i. c. 5, 
Dab. Oiion. Aug. 3 X. 1672. 
I i i i i An 
