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# Title: [Johannis Wallisii SS. Th. D. Geometriae Professoris Saviliani Oxoniae, Tractatus Duo] Johannis Wallisii SS. Th. D. Geometriæ Professoris Saviliani Oxoniæ, Tractatus Duo (shelfmark Leibn. Marg. 103)
# Folio 65, page id 85138403X:0073
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DE CYCZOTDE
sione crianouli restilinei es 2 93 (nam circulus radie
R CA Z RP; ergo circulus radii ZP, urpote in radiorum ra-
rione duplicaca, est
1
P2 vel.
SR
P2; qui circulus, cum (IE
coni batis, ductus in ? D eriencem altitudinis, dac,  P maoni-
cudinem comi:) Hlorum solidoru differentia, nempe excessus
coni supra reliquum solidum, eAt =D= P = -  P=. Sin urrobique,
Pro circulorum peripheriis substicuanus radios, (Facta divisione
Per P, ec mulciplicatione per Z D,) habebimus planorum momen-
ea respecti rectae CF; nempeillic es DP 2- =D, hic vero e EDP=
2deoque momentorum ditterentiam = D. 
+6 DP=. IIRC VerO
difterentia per segmenti magnicudinem divisa, hoc est per =D 2-
S DP, (est enim crilineum miltum BBC -27 2
unde si aute-
ratur erianeulum sibi inscriprum, quod est circum scripei paralle
logrammi dimidium, adeoque, ZDP, manebic ZD = = Z DP
magnicudo segmenti BA vel BC recta e curra comprehensi;)
dac
120 2 p2
T2D- p menturam promotionis centri gravicatis, dicti
seomenti tramclocati, vertus FC rectam: Cujus itaque semisIS
12 D= = P2
24 D-6 P est ejusdem cenrri distantia a recta cBB: Ouxe qui-
dem distancia, in segmenei magnicudinem =D = -, EDP ducta, dae
D DP ejusdem momentum respectu cBB recta. Momen-
cum aucem crianguli rectilinei BCC respectu ejusdem cB rectx
eltr =DP= = LDPX, =P. Unde s auteratur segmenti dicti mo-
mencum ZD=3E DP=manebit E+D P= =ED? mOmenEUM CrI-
linei misti BCC respectu rectA CB. FR AUEeM FOFIMS BC Pa-
eallelogrammi, respectu ejusdem cB, MOmeNCUM =DPL =
=DPrEP. (Unde obirer liquer, residui B C b crilinei momentum
esse ZD adeoque, Propter ipbus magnieudinem ZD=, distan-
eiam cui ceneri graviraris a cB eNe =D; _ consequenter, a bC
etiE Z P = ZD, UE Supra 5 99.) Racio igicur momenei crilinei
misti BCC, ad momentum circumseripei Paralleloorammi, (re-
spectu ejuldem cB rectE,) est ut  D P=  =D ad 6+ D P=; (Ve,
uC P = 8D2 ad p=: UE PEIUS.
62. Vel denique, sic etiam eadem rario inveltigabieur. Vo-
mentum erilinei milti CZ. AF A9. 7. respectu recta C F est (uE
+C
EuPFa) ic DP2.
M