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# Title: De Locis Solidis Secunda Divinatio Geometrica (shelfmark Leibn. Marg. 151)
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idem Pappus in Prohemio Libri Septimi ad TTer-
modorum Ailium pas. 162.
Loci solidi quicumque, sunt Conorum sectiones Pa-
rabolae, vel Fllipses, vel perbola.
Rurlus idem Pappus in Prohemio Libri Septi-
MI Pa8. 157.
Locus, qui vocatur aradvouros, hoc est resolutus
(dixerim relolutorium) o Ftermodore fili, ut summa-
tim dicam, propria quaedam est materia post commu-
nium Flementorum constirutionem, iis parata, qui in
Geometricis sibi comparare volunt vim, ac facultatem
inveniendi problemata, quae ipsis proponuntur, at-
que bujus tantummodo utilitatis cratia invenia est.
Scripserunt aurem hac de re tum Puclides, qui lle-
menta tranidit: Tum ApoloniuS PerCaUS: tum Ari-
staus Senior. Duae quidem per resolutionem, es compo-
sitionem procedit. Sciendum autem est, Puclidem
duos Libros Icriplise, de Locis ad supersiciem: Fori-
dem apollonium de Locis Planis: Ariltaeum autem
de Locis Solidis. Reque hos Libros indicat PapDuS
luperioribus verbis, ut incelliget is, qui perpenderit
ca, quae deinceps Tubjiciuntur.
Idem Pappus paulo intra. Aristaei rococo Sepecdv
hoc est Locorum Solidorum quinque. C: Om plexus cAt
isitur quinque Libris Ariltaus ca, quae de Locis 50-
lidis cradiderat. 09l a
Praecerhaec, par. 163. de inclinationibus prope
finem de Aristaeo subdic.
Solida autem vocant problemata non quae in solidis
fiouris proponantur; sed quae cum non possint ostendi
per plana, per Conicas Lineas ostendantur. Ouare
de