1Centro item C& intervallo quovis deſcribatur circulus nomſe
cans rectam CPin n,Rotæ perimetrum BP&c. in o,& Viam curvi
lineam APin m;centroque V& intervallo Vodeſcribatur circu
lus ſecans VPproductam in que
cans rectam CPin n,Rotæ perimetrum BP&c. in o,& Viam curvi
lineam APin m;centroque V& intervallo Vodeſcribatur circu
lus ſecans VPproductam in que
Quoniam Rota eundo ſemper revolvitur circa punctum con
tactus B,manifeſtum eſt quod recta BPperpendicularis eſt ad
98[Figure 98]
lineam illam curvam APquam Rotæ punctum Pdeſcribit, atque
adeo quod recta VPtanget hanc curvam in puncto P.Circuli
nomradius ſenſim auctus vel diminutus æquetur tandem diſtantiæ
CP; &, ob ſimilitudinem Figuræ evaneſcentis Pnomq& Figuræ
PFGVI,ratio ultima lineolarum evaneſcentium Pm, Pn, Po, Pq,
tactus B,manifeſtum eſt quod recta BPperpendicularis eſt ad
98[Figure 98]
lineam illam curvam APquam Rotæ punctum Pdeſcribit, atque
adeo quod recta VPtanget hanc curvam in puncto P.Circuli
nomradius ſenſim auctus vel diminutus æquetur tandem diſtantiæ
CP; &, ob ſimilitudinem Figuræ evaneſcentis Pnomq& Figuræ
PFGVI,ratio ultima lineolarum evaneſcentium Pm, Pn, Po, Pq,