Alberti, Leon Battista, L' architettura

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          <p>
            <s xml:id="echoid-s3829" xml:space="preserve">
              <pb o="83" file="087" n="87" rhead="LIBRO TERZO."/>
            perture di Pietra. </s>
            <s xml:id="echoid-s3830" xml:space="preserve">Di queſte coſe adunque diſcorreremo breuiſsimamente;
              <lb/>
            </s>
            <s xml:id="echoid-s3831" xml:space="preserve">Ma faccia queſto a noſtro propoſito. </s>
            <s xml:id="echoid-s3832" xml:space="preserve">Io non lodo gli Architettori di queſti tẽ
              <lb/>
            pi, che per fare i palchi, laſciano in eſsi oſſami delle mura, larghiſsimi ſquarci di
              <lb/>
            buche, ne quali poi habbino finite le mura a mettere le Teſte delle Traui: </s>
            <s xml:id="echoid-s3833" xml:space="preserve">Onde
              <lb/>
            il muro diuenta piu debole, & </s>
            <s xml:id="echoid-s3834" xml:space="preserve">lo edificio ne diuiene mal ſicuro dal fuoco, per
              <lb/>
              <note position="left" xlink:label="note-087-01" xlink:href="note-087-01a" xml:space="preserve">5</note>
            eſſer in que' luoghi aperte le uie al ſuoco, da penetrare facilmente nell'altre ſtan
              <lb/>
            ze. </s>
            <s xml:id="echoid-s3835" xml:space="preserve">Per laqual coſa, mi piacciono coloro infra gli Antichi, ch'uſarono mettere
              <lb/>
            nelle mura, fermiſsime menſole di pietra, ſopra lequali, come ho detto, poſaua-
              <lb/>
            nole teſte delle traui; </s>
            <s xml:id="echoid-s3836" xml:space="preserve">che ſe tu uorrai con le traui incatenare le mura, non ti mã
              <lb/>
            cheranno ſpranghe, & </s>
            <s xml:id="echoid-s3837" xml:space="preserve">catene di bronzo, & </s>
            <s xml:id="echoid-s3838" xml:space="preserve">tacche, che eſchino ſopra le menſo-
              <lb/>
              <note position="left" xlink:label="note-087-02" xlink:href="note-087-02a" xml:space="preserve">10</note>
            le, lequali a ſimili coſe uſerei commodamente. </s>
            <s xml:id="echoid-s3839" xml:space="preserve">La traue debbe eſſere al tutto
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            intera, & </s>
            <s xml:id="echoid-s3840" xml:space="preserve">molto netta; </s>
            <s xml:id="echoid-s3841" xml:space="preserve">& </s>
            <s xml:id="echoid-s3842" xml:space="preserve">ſopra tutto per il mezo della ſua lunghezza, non deb-
              <lb/>
            be hauere difetto alcuno. </s>
            <s xml:id="echoid-s3843" xml:space="preserve">Poſto l'orecchio a l'una delle teſte di eſſa, ſe percoſ-
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            ſa piu uolte dall'altra riceuerai le percoſſe ſorde, & </s>
            <s xml:id="echoid-s3844" xml:space="preserve">ottuſe; </s>
            <s xml:id="echoid-s3845" xml:space="preserve">ſarà inditio, che den-
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            tro ui ſia aſcoſa infermitate. </s>
            <s xml:id="echoid-s3846" xml:space="preserve">Le traui nodoſe, ſi debbono molto ſchifate, & </s>
            <s xml:id="echoid-s3847" xml:space="preserve">maſ
              <lb/>
              <note position="left" xlink:label="note-087-03" xlink:href="note-087-03a" xml:space="preserve">15</note>
            ſimo ſe i nodi ſaranno ſpeſsi, & </s>
            <s xml:id="echoid-s3848" xml:space="preserve">agruppati in un monte. </s>
            <s xml:id="echoid-s3849" xml:space="preserve">Quella parte del le-
              <lb/>
            gno che è piu uicina alla midolla, ſi piallerà, accioche nell'opera ella ſtia di ſo-
              <lb/>
            pra; </s>
            <s xml:id="echoid-s3850" xml:space="preserve">ma quella parte, che debbe ſtare di ſotto, pialliſene ſolamente per la ſuperfi-
              <lb/>
            cie, nulla altro che la ſcorza; </s>
            <s xml:id="echoid-s3851" xml:space="preserve">& </s>
            <s xml:id="echoid-s3852" xml:space="preserve">di queſta quaſi, o niente, o uero quanto ſe ne puo
              <lb/>
              <note position="left" xlink:label="note-087-04" xlink:href="note-087-04a" xml:space="preserve">20</note>
            manco. </s>
            <s xml:id="echoid-s3853" xml:space="preserve">Ma qualunche delati, che per il trauerſo ui ſia difetto alcuno; </s>
            <s xml:id="echoid-s3854" xml:space="preserve">ponlo
              <lb/>
            in modo, che egli ſtia di ſopra, ſe per auentura per il lungo della traue fuſſe al-
              <lb/>
            cuno feſſo, non lo mettere mai da gli lati; </s>
            <s xml:id="echoid-s3855" xml:space="preserve">ma ponlo, o di ſopra, o piu toſto di
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            ſotto. </s>
            <s xml:id="echoid-s3856" xml:space="preserve">Se tu hai per ſorte a bucarne alcuna, o a farui intaccature, non la forare
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            mai nel mezo; </s>
            <s xml:id="echoid-s3857" xml:space="preserve">& </s>
            <s xml:id="echoid-s3858" xml:space="preserve">non fendere mai la ſuperſicie di ſotto. </s>
            <s xml:id="echoid-s3859" xml:space="preserve">Et ſe come uſarono
              <lb/>
              <note position="left" xlink:label="note-087-05" xlink:href="note-087-05a" xml:space="preserve">25</note>
            nelle chieſe ſi porranno le traui a due a due; </s>
            <s xml:id="echoid-s3860" xml:space="preserve">laſcierai infra loro ſpatij di alquante
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            dita, mediante i quali le eſalino, accioche non ſi guaſtino riſcaldando l'una l'al-
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            tra; </s>
            <s xml:id="echoid-s3861" xml:space="preserve">& </s>
            <s xml:id="echoid-s3862" xml:space="preserve">ſarà molto utile, ad ogni coppia, porre eſſe traui al contrario l'una de l'al-
              <lb/>
            tra, accioche le teſte di amendue non ſtieno ſopra un medeſimo poſare; </s>
            <s xml:id="echoid-s3863" xml:space="preserve">ma do-
              <lb/>
            ue l'una ha la teſta, habbia l'altra in quel luogo il piede. </s>
            <s xml:id="echoid-s3864" xml:space="preserve">Imperoche in queſto
              <lb/>
              <note position="left" xlink:label="note-087-06" xlink:href="note-087-06a" xml:space="preserve">30</note>
            modo, con la fortezza della teſta, ſi ſouerrà ſcambieuolmente alla debolezza
              <lb/>
            del piede. </s>
            <s xml:id="echoid-s3865" xml:space="preserve">Et biſogna che eſſe traui ſieno parenti, cioè d'una medeſima ſorte
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            di legnami, & </s>
            <s xml:id="echoid-s3866" xml:space="preserve">di una medeſima ſelua creſciute, & </s>
            <s xml:id="echoid-s3867" xml:space="preserve">eſpoſte ſe gli è poſsibile alla
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            medeſima regione del Cielo: </s>
            <s xml:id="echoid-s3868" xml:space="preserve">& </s>
            <s xml:id="echoid-s3869" xml:space="preserve">tagliate in un medeſimo giorno: </s>
            <s xml:id="echoid-s3870" xml:space="preserve">Accioche con
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            uguali forze di natura, faccino uguale officio. </s>
            <s xml:id="echoid-s3871" xml:space="preserve">Fa che le poſte delle Traui ſie-
              <lb/>
            no ben ſpianate, talmente che qual ſe l'una, ſia falda, & </s>
            <s xml:id="echoid-s3872" xml:space="preserve">fermiſsima; </s>
            <s xml:id="echoid-s3873" xml:space="preserve">guardati nel
              <lb/>
              <note position="left" xlink:label="note-087-07" xlink:href="note-087-07a" xml:space="preserve">35</note>
            porre delle traui, che il legname non tocchi punto di calcina, & </s>
            <s xml:id="echoid-s3874" xml:space="preserve">laſciali intor-
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            no intorno ſpiragli liberi, & </s>
            <s xml:id="echoid-s3875" xml:space="preserve">aperti, accioche non ſi guaſti per eſſer tocco da co-
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            ſa alcuna, o rinchiuſo s'inſracidi. </s>
            <s xml:id="echoid-s3876" xml:space="preserve">Per letto delle traui, duſtendiui ſotto, o la
              <lb/>
            felce herba molto alida, o carboni, o morchia piu toſto con Sanſa. </s>
            <s xml:id="echoid-s3877" xml:space="preserve">Ma ſe gli
              <lb/>
            Alberi ſaranno in modo corti, che tu non poſſa d'un ſolo troncone fare una
              <lb/>
              <note position="left" xlink:label="note-087-08" xlink:href="note-087-08a" xml:space="preserve">40</note>
            traue d'un pezzo, commetteranne inſieme piu d'una, talmente che habbino
              <lb/>
            in loro maggiore ſorza, cioè che la linea di ſopra della anneſtata traue, non poſ
              <lb/>
            ſa per aggrauamento di peſo mai diuentare minore. </s>
            <s xml:id="echoid-s3878" xml:space="preserve">Et per l'oppoſito la linea
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            di ſotto, non poſſa diuentare piu lunga: </s>
            <s xml:id="echoid-s3879" xml:space="preserve">Ma ſtia quaſi, come una corda, </s>
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