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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica (shelfmarks Leibn. Marg. 100:1/2, Stück 1; Leibn. Marg. 100:1/2)
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De Comro avitatis.
LROP. X
Eit Tuaequalis, rel, Inaequalium Ponderum; proportionaliter.
SEguitT ex 17 Cap. 3. Propiex 26 trujus.
P RO P. XZ
Datis Ponderibus guovel; datilque vel AXe motus (aut pervendie
lari per hunc Plano) et Conderum Centris graritatis; vel horumZ
Perpendiculari per ARC Plano distantiis ad datas partes: Inresti-
sare, quanta sit cum lingulorum cum simul omnium Ponderatio; et
2d quas patces: cum clenique quantum grarant ipsum quo sustinen-
+40.
F0D
ADl. F8. 13C2. 1LC:: f T2DP. + 126. F0DP +0C: -6DP. - 665: -12DP.-- 226
Scenditur ex 18 Cap. 3. proprer 16 hujus.
Signum F, innuit distanciam a Perpendiculari
per axem Plano, Dextrorlum: Signum -, Siniltrortum.
Pondera rero eodem signo. L nocantur omnia, quia in-
celliguntur omnia, Deprimentia. Si vero eslet Ponderum
aliud Deprimens, aliud Flerans: illud signo F, hoc
signo - nocari par etter: Et mulciplicationum leges in-
Cuper eslent obserranda.
Fijusdem rel aequalium Pondetu, Centri Graritaris ad perpendicu.
laris Plani per Axem mocus Appropinquatio, aut inde Flonsatio.
l
35
P. I
Aqualis, (sive Centrum Plano admoreri intellisatur, sivo Planum
Centro, vel contra;) aequaliter auget, minuiere Ponderationem.
tur Axem. 
Datis Ponderibus quorlibet (ret summa Ponderum) dataque corum
limul omnium Ponderatione ad datas partes, respeCtI AxiS exPOsiti
(rel expolici per axem Perpendicularis Plani:) Ponderationem Au-
Sere vel Minuere data quantitate; sire manente eodem pex AXem
plano perpendiculari; sire manencibus (in iisdem parallelis Planis)
Ponderum ceneris gravitatis.
D SIendituT Ex 19 Cap. 3. PrOPEeT 18 hujus.
Nempe: Mavente AXC, (Falcem similiter ad horirontem inelinaro; in eo.
dem perpendiculari plano,) Amorendo vel Admorendo ponderum Centra Gra-
vitatis.
Velu manencibus ur prins (Falcem in iisdem parallelis Planis) Ceneris Grarica:
tis; (vel communi timul omnium CenErO;) Amovendo vel Admorendo AXem.
Timiliter inclinatum, in parallelo Plano. Fanco quidem interrallo, quanto expo-
Tica Pondera (rel summa ponderum) cancundem ponderarent, quancum est vel Ad.
dendum vel Auterendum ponderationi expoticum.
R
PROP. XXIV