Alberti, Leone Battista, De re aedificatoria, 1485

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    <archimedes>
      <text>
        <body>
          <chap id="N40001A">
            <p id="N401536" type="main">
              <s id="N4015D6">
                <pb xlink:href="004/01/035.jpg"/>
              ut ſit ille quidem arcus non
                <expan abbr="minor/q̃">minor / quae</expan>
              circuli dimidia pars parte
                <lb/>
              addita ſemidiametri ſeptima. </s>
              <s id="N4015E5">Nam apud peritos compertum af
                <lb/>
              firmant / hunc eſſe omnium unum ad perennitatem accommoda
                <lb/>
              tiſſimum. </s>
              <s id="N4015EC">Cæteros uero omnes arcus eſſe putant imbecilles ad
                <lb/>
              ferendum onus: & promptos atque expoſitos ad ruinam. </s>
              <s id="N4015F1">Prætere
                <lb/>
              a ſemicirculum arcum eſſe unum / qui corda & adminiculis non
                <lb/>
              indigeat arbitramur. </s>
              <s id="N4015F8">Cæteros autem omnes / ni eis aut cordam
                <lb/>
              aut contraria pondera / quibus cum certent adegeris / uidemus ſu
                <lb/>
              apte ui fatiſcere atque labaſcere. </s>
              <s id="N4015FF">Non hic prætermittam egregium
                <lb/>
              id laudeque digniſſimum / quod annotaui apud ueteres apertiones
                <lb/>
              iſtiuſmodi etiam & teſtudinum arcus ita optimis illis ab architec
                <lb/>
              tis poſitas in templis / ut ſi omnes intimas ſubdemeris columnas /
                <lb/>
              tamen apertionum arcus tectorumque teſtudines perſiſtant & mi
                <lb/>
              nime corruant / ita ſunt omnes arcuum ductiones / quibus teſtudi
                <lb/>
              nes incumbunt / ad ſolum uſque perductæ miro artificio & paucis
                <lb/>
              cognito ut ſtet opus ſolis arcubus incumbendo: Et enim cum illis
                <lb/>
              quidem tellus pro corda firmiſſima ſit / quid ni et ipſi per ſe arcus
                <lb/>
              firmiſſimi æternum perſiſtent.</s>
            </p>
            <p id="N401614" type="main">
              <s id="N401616">Scalis ponendis plus eſt negocii
                <expan abbr="q̈">quam</expan>
              ut poſſis niſi maturo & dige
                <lb/>
              ſto conſilio recte ponere: Nam unis in ſcalis tres ueniunt apertio
                <lb/>
              nes: Et harum una quidem eſt hoſtium quo in ſcalis conſcenden
                <lb/>
              dis aditus pateat: Altera eſt feneſtra / qua fiat / ut recepto lumine
                <lb/>
              cuiuſque gradus retractio perſpiciatur: Tertia eſt contignationis
                <lb/>
              & tecti apertio: qua in ſuperius pauimentum operimentum que per
                <lb/>
              uadimus: Ea de re illud aiunt ſcalis nimirum impediri operum
                <lb/>
              deſcriptiones. </s>
              <s id="N401627">Sed qui uolent ſcalis non impediri ſcalas ipſas
                <lb/>
              non impediant: Certum enim & proprium
                <expan abbr="dicabũt">dicabunt</expan>
              ſpatium areæ
                <lb/>
              quo liber & ſolutus excurſus pateat: ſuprema uſque ad tecta:
                <lb/>
              quæ ſub diuo ſunt: Neque te pigeat quod tantum areæ ſcalis occu
                <lb/>
              petur: Nam ſatis referent commodi illic / Vbi cæteris partibus
                <lb/>
              ædificii inferant minimum incommodi. </s>
              <s id="N40163A">Adde quod etiam for
                <lb/>
              nices & uacua quæ ſub ſcalis relinquentur / ad uſus per commo
                <lb/>
              dos non deerunt. </s>
              <s id="N401641">Scalarum apud nos duo ſunt genera: Nam de
                <lb/>
              militaribus expeditionum munitionumque ſcalis non eſt </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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