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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 34, page id 85138403X:0050
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L EbL
nium =Z9F 2DZ2Y+229, ad momentum omnium 2 Yg. (re-
spectu ejusdem AF rectae:) HOc est, ut momeneum (respectue
juEdem AF rectae) solidi ex convertione crilinei restiruri C AF Ao.
7. Circd C F (quod, PrOPEer quanEICatU reciprOCatIOneM, XQui
Pollet ilti quod jam diximus Ba) una cum momento Colidi ex se-
Micirculo (IC. Converto (quod aequipoller nupeF InVeMEO Z R P
886) acque insuper momenco Tolidi ex convertione plani cujus
rectae linc mediae proportionales incer L2 2 Y (quod dicamus C s)
bis sumpro; ad momentum sphaerae ex simili convertione semi-
circusi, respectu ejusdem AF rectae: HOc eA, ut B= +2C 4t ZR, P
ad 3 R P.
9r. Cum igieur haecratiO B+ + 2 (4 + Z R 3 P ad Z R F
(550) hoc est, 9B + + 18C + +6R  P ad 6R = P, cadem (IE
atque illa (588,) 25B+ + cA B3 P ad 6R  P; erit 9B + +
28C + + 6R  P  Y5 B + + 24 B  P; ad eOque 18C = = 6B1
+8R P, CirC 9C+ =3 B+F 4R=P. HOc eH, C4 == B++3RP. Lin
de coenito vel B vel C, reliquum cognolcetur.
92. UE aurem habeamus B, hoc est, momentum solidi ex
convertione Trilinei relticuri C A F A9. 7. CIFCA AF, respectu
rectae C F, (vel circa C F, respectu A F, qua CanCUNdeM PUINC:)
Primo pro omnibus circulis radiorum EZ, Subllicuamus cotidem
criangula rectangula super ipsaS EZ bales consticura, e alcicu-
dines (inipsis Z punctis) balibus aequales habeneia; adeoque
portionem prismacis plano oblique secti complentia, balin hit
bencis crilineum illud C A F, alcicudinem vero in AF nul
lam, sed continue crescentem donec ad punctum C alcicudi
nem obcinear aqualem ips FC rectae; adeoque ad lingula
balis puncta alcicudinem habeat aequalem eorundem ab AF
dictancix. Duae quidem Triangula, cum magnicudine, eum et
momenco respectu C F rectae, sunc respectiris illis circulis Pro-
Portionalia
93. Deinde in hujus prismaricae portionis basiC A F, duci in-
celligamus curram B F, curvis B C _ B A omnino similem. C ui
BF curre, incelligatur crecta superticies curra intiltere, diri-
mens portionem illam prismaris in duo seomenta; quorum alte-
rum erilineo BF A, alcerum crilineo B F C, insiltanE. Ouo-
TUM sCSMeNEOTUI MOenEuM, respectu C. F rectE, siC sCOKLIM
inguirIUS.