Vitruvius
,
Marci Vitruvii Pollionis De architectura libri decem : ope codicis Guelferbytani, editionis principis, ceterorumque subsidiorum recensuit, et glossario in quo vocabula artis propria Germ. Ital. Gall. et Angl. explicantur
,
1800
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echoid-s1970
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88
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0114
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M. VITRUVII P. DE ARCHITECTURA
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locentur, et eae altitudinem habeant aeque, quam quae ſunt in fronte:
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</
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<
s
xml:id
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echoid-s1971
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xml:space
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">craſſitudines autem earum extenuentur his rationibus, uti ſi octava parte
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erunt, quae ſunt in fronte, hae ſiant novem partes; </
s
>
<
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echoid-s1972
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xml:space
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">ſin autem nona aut decima, pro rata parte ſiant. </
s
>
<
s
xml:id
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echoid-s1973
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xml:space
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">In concluſo enim aere ſi quae extenuatae
<
lb
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erunt, non diſcernentur; </
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>
<
s
xml:id
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echoid-s1974
"
xml:space
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preserve
">ſin autem videbuntur graciliores, cum exteriori-
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bus fuerint ſtriae viginti quatuor, in his faciendae erunt XXVIII aut
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XXXII. </
s
>
<
s
xml:id
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echoid-s1975
"
xml:space
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">Ita quod detrahitur de corpore ſcapi, ſtriarum numero adjecto
<
lb
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adaugebitur ratione quo minus videbitur: </
s
>
<
s
xml:id
="
echoid-s1976
"
xml:space
="
preserve
">et ita exaequabitur diſpari ra-
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tione columnarum craſſitudo. </
s
>
<
s
xml:id
="
echoid-s1977
"
xml:space
="
preserve
">Hoc autem efficit ea ratio, quod oculus
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lb
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plura et crebriora ſigna tangendo majore viſus circuitione pervagatur.
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</
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>
<
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echoid-s1978
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xml:space
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">Namque ſi duae columnae aeque craſſae lineis circummetientur, e quibus
<
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una ſit non ſtriata et altera ſtriata: </
s
>
<
s
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echoid-s1979
"
xml:space
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preserve
">et circa ſtrigium cava et angulos ſtri-
<
lb
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arum linea corpora tangat, tametſi columnae aeque craſſae fuerint, lineae
<
lb
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quae circumdatae erunt, non erunt aequales; </
s
>
<
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xml:id
="
echoid-s1980
"
xml:space
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preserve
">quod ſtriarum et ſtrigium
<
lb
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circuitus majorem eſſiciet lineae longitudinem. </
s
>
<
s
xml:id
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echoid-s1981
"
xml:space
="
preserve
">Sin autem hoc ita vide-
<
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bitur, non eſt alienum in anguſtis locis et in concluſo ſpatio graciliores
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lb
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columnarum ſymmetrias in opere conſtituere, cum habeamus adjutricem
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ſtriarum temperaturam. </
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>
<
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echoid-s1982
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xml:space
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">Ipſius autem cellae parietum craſſitudinem pro
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rata parte magnitudinis ſieri oportet, dum antae eorum craſſitudinibus
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columnarum ſint aequales, et ſi exſtructi ſuturi ſint, quam minutiſſimis
<
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caementis recte ſtruantur. </
s
>
<
s
xml:id
="
echoid-s1983
"
xml:space
="
preserve
">Sin autem quadrato ſaxo aut marmore maxi-
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me modicis paribusque videtur eſſe ſaciendum, quod media coagmenta
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medii lapides continentes ſirmiorem facient omnis operis perſectionem. </
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<
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="
echoid-s1984
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Item circum coagmenta et cubilia eminentes expreſſiones graphicoteram
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efficient in aſpectu delectationem.</
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<
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echoid-s1985
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xml:space
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<
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2)
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">Cod. ms. et Ed. Sulp. decem.</
note
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