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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)
# Folio 652, page id 851387705:0672
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De Canoro taatis.
LAOP. VIEI; sit 
Si unico sui puncto sustineatur Grare: quocunque situ ponatur; Fal
tem unum per punctum illud incedens Perpendiculare planum, cA
planum sguilibrii.
Adeoque; Per omne Craris Punetum incedit aliquod sequilibrii
Planum.
1i
u
Fip. 88. C H XASB Geare; pincto sui Mt suctencum; per quod transeat Pespendiculum
 AMB; perque hOc incedat ANBN perpendiculare Planum. Prit hoc
AMBN, vel Planum Aquilibrii (adeoque habetur quod erac probandum;) vel
seomentum alterum, pura AB NS, praeponderabit. Duo catu; Planum A M BH
(cujus Faciem alteram, Dura quae S respicir, Anteriorem dicemus; alteram. Poste.
riorem;) incelligatur, immoto Crrari, imaginatione converti cirea AMB axem;
donec eo perreniatur ut quae utrinque lune segmenta Craris Aguiponderent. FIOC
enim omnino fore certum est: Oippe, lacta lemi convertione, quod erat ab an-
ceriore converti. Plani facie, a Polteriore relinquetur, scementum Craris prxepon
derans; et contra: Cunque a prxpondergnria antica ad polticam sic concinuo
Ocu pervencum (ic, Co momenio quo ab hiac ad. illam cransibatur, neucca exac:
sed aequiponderantia. Ouodque cum converso Plano, hoc liu potuo, coincidit
in
Onde e contlat Corollarium. Ouipee quovis ui pisncto sustencum inteltisi
Postie GCarB. ((1. H3113ISCLO) Ldi Od 
19 seris
(11 1
e set et (sidoe
Si unico sui puncto sustircatur Crare: Per illud incedens Perpen
diculare Planum squilibrii, manebie Horiconi rectum.
Tdeoque; vel quielcet grare; (nempe si perpendiculum per centrum
mocus, seu punctum illud quo sustinetur erare, sit Pervendiculum
Rquilibrii iltius Plani sc grarati.)istis ri
Vel (R perpendiculum illud non sie Perpendiculum Rquilibrir icrius
Plani) rocabitur circa Horizontalem Axem, Plano illi rectum, per
centrum mocus scu punctum illud quo sustinetur Crare rranteun-
tem; donec, ad seguilibrium redigatur.
Sin Planum aliquod Perpendiculare, non sic Planum Aquilibrii: See
mentum prxxonderans descendet (adeoque obliquabitur Planum;)
donec ad Aquilibrium redisatur.
Onde; Si duo quaeris per idem punctum plana perpendicularia sint
Plana sequilibrii: etiam reliqua sic erunt; exirgue perpendiculum
per illud Punetum, Axis squilibrii.
.133I S isi
Ex vunctum M, quo, sultineri incellixatur Craves cranleac cum X S recta
torisoncalis, quae pro onusta Labra habeatur; tum huie ad angulos rectos
AMB N Perpendiculare planum per AXem, Crare dirimens in duo legmen-
a AMBX, A MBS; quibus respectire onerantur M X, M S, librae brachia.
DeF X3 Cap. 3.
Cumque (Per PXced. J ex Perpendicularibus per M planis, Calcem unum ali-
mod sic Planum Aquilibrii. Inccllisaeur, primo, illud AMB N planum Aqui-
librii; adeoque (per deF. Blani A. quilibrii) AMBX, AMBS, segmenra inricem
Aquiponderantia. Perie ixime MI (per def. F3. Cap. 3.) centrum A quilibrii 000
cum (ex hypochetr) Pultincatur Libra, in neucram partem movebitur, per y vel
20. Cap. 3. Adeoque nec obliquabier A M BN, sed manebic (uE prIuS) FlOri
zonei rectum. Quod crat primo demonstrandum.
Adeoque; rel non moreblur crare, rel circa manentem _M Sasem rorabie,
pex
F18. 88.
ol
F. C11F