Alberti, Leon Battista, L' architettura

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          <p>
            <s xml:id="echoid-s4045" xml:space="preserve">
              <pb o="90" file="094" n="94" rhead="DELLA ARCHITETTVRA"/>
            offa delle mura: </s>
            <s xml:id="echoid-s4046" xml:space="preserve">Et ſecondo la regola di quelle, ſi tireranno queſte altre oſſa in
              <lb/>
            queſto luogo, & </s>
            <s xml:id="echoid-s4047" xml:space="preserve">infra loro ſaranno alquanto lontane di certa determinata parte.
              <lb/>
            </s>
            <s xml:id="echoid-s4048" xml:space="preserve">Ma da oſſa ad oſſa ſi tireranno legature, & </s>
            <s xml:id="echoid-s4049" xml:space="preserve">ſi riempieranno i uani del mezo. </s>
            <s xml:id="echoid-s4050" xml:space="preserve">So
              <lb/>
            no certo le uolte in queſto differenti dalle mura, che nelle mura, tutte le pietre,
              <lb/>
            & </s>
            <s xml:id="echoid-s4051" xml:space="preserve">i filari ſi compongono, & </s>
            <s xml:id="echoid-s4052" xml:space="preserve">ammaſſano inſieme dirittamente a filo ſecondo la
              <lb/>
              <note position="left" xlink:label="note-094-01" xlink:href="note-094-01a" xml:space="preserve">5</note>
            ſquadra, & </s>
            <s xml:id="echoid-s4053" xml:space="preserve">l’archipenzolo; </s>
            <s xml:id="echoid-s4054" xml:space="preserve">Ma nelle uolte i filari ſi tirono cõ linea torta, & </s>
            <s xml:id="echoid-s4055" xml:space="preserve">le cõ-
              <lb/>
            mettiture delle pietre ſi dirizzano tutte al centro delloro arco. </s>
            <s xml:id="echoid-s4056" xml:space="preserve">Gli Antichi
              <lb/>
            non uſarono quaſi mai in luogo alcuno, fare gli oſſami d’altro che di mattoni
              <lb/>
            cotti;</s>
            <s xml:id="echoid-s4057" xml:space="preserve">& </s>
            <s xml:id="echoid-s4058" xml:space="preserve">gli faceuano il piu delle uolte lunghi di duoi piedi, & </s>
            <s xml:id="echoid-s4059" xml:space="preserve">ci auertiſcono che
              <lb/>
            ſi finiſchino i ripieni delle uolte di pietre leggieriſsime; </s>
            <s xml:id="echoid-s4060" xml:space="preserve">accioche non ſieno le
              <lb/>
              <note position="left" xlink:label="note-094-02" xlink:href="note-094-02a" xml:space="preserve">10</note>
            mura per queſto dal troppo gran peſo affaticate. </s>
            <s xml:id="echoid-s4061" xml:space="preserve">Io niente dimeno ho cõſide
              <lb/>
            rato, che alcuni coſtumarono di non tirare ſempre oſſami, ſaldilsimi per tutto;
              <lb/>
            </s>
            <s xml:id="echoid-s4062" xml:space="preserve">ma in cambio di oſſa, hauerui meſsi hor quà hor là, mattoni, cõ le teſte congiũ-
              <lb/>
            ti l’uno a l’altro a pettine; </s>
            <s xml:id="echoid-s4063" xml:space="preserve">come ſe alcuno cõ le dita della mano deſtra, ſtrigneſſe
              <lb/>
            intraprendendo le dita della ſiniſtra; </s>
            <s xml:id="echoid-s4064" xml:space="preserve">& </s>
            <s xml:id="echoid-s4065" xml:space="preserve">uſarono di riempiere gli intramezi di
              <lb/>
              <note position="left" xlink:label="note-094-03" xlink:href="note-094-03a" xml:space="preserve">15</note>
            pezzami ragunaticci, & </s>
            <s xml:id="echoid-s4066" xml:space="preserve">maſsime di tuſi; </s>
            <s xml:id="echoid-s4067" xml:space="preserve">la qual ſorte di pietra, è ſecondo il dire
              <lb/>
            di tutti, per fare le uolte la piu commoda. </s>
            <s xml:id="echoid-s4068" xml:space="preserve">Ma a uolere fare, o Archi, o Volte,
              <lb/>
            habbiamo biſogno di armarle. </s>
            <s xml:id="echoid-s4069" xml:space="preserve">Le Armadure ſono certe centine, fatte coſi al-
              <lb/>
            la roza di aſsi, & </s>
            <s xml:id="echoid-s4070" xml:space="preserve">come per breue tempo ſopra delle quali ſi pongono per pelle,
              <lb/>
            o ſcorza graticci, o canne, o ſimili altre coſe uili; </s>
            <s xml:id="echoid-s4071" xml:space="preserve">ꝑ reggere l’ammaſſamento del-
              <lb/>
              <note position="left" xlink:label="note-094-04" xlink:href="note-094-04a" xml:space="preserve">20</note>
            la uolta, tanto che la habbia fatta la preſa. </s>
            <s xml:id="echoid-s4072" xml:space="preserve">Niente dimeno infra le uolte, ne è
              <lb/>
            una, la quale ſola, non ha biſogno d’armadura; </s>
            <s xml:id="echoid-s4073" xml:space="preserve">& </s>
            <s xml:id="echoid-s4074" xml:space="preserve">queſta è la Tribuna tonda; </s>
            <s xml:id="echoid-s4075" xml:space="preserve">cõ-
              <lb/>
            cioſia che ella non ſia fatta ſolamente di archi, ma di andari come cornici. </s>
            <s xml:id="echoid-s4076" xml:space="preserve">Et
              <lb/>
            chi potrà raccontare, o penſare giamai, quãto l’uno, & </s>
            <s xml:id="echoid-s4077" xml:space="preserve">l’altro di eſsi(che ſono in-
              <lb/>
            numerabili)che ſi accoſtano l’uno all’altro, & </s>
            <s xml:id="echoid-s4078" xml:space="preserve">ſi interſecano ad angoli pari, & </s>
            <s xml:id="echoid-s4079" xml:space="preserve">nõ
              <lb/>
              <note position="left" xlink:label="note-094-05" xlink:href="note-094-05a" xml:space="preserve">25</note>
            pari;</s>
            <s xml:id="echoid-s4080" xml:space="preserve">quanto dico, ſieno commodi? </s>
            <s xml:id="echoid-s4081" xml:space="preserve">Di maniera, che in qual ſi uoglia luogo di
              <lb/>
            tutta la uolta, che tu metterai una ſimil pietra, o mattone, tu conoſcerai hauerui
              <lb/>
            meſſo un ſerraglio di piu archi, & </s>
            <s xml:id="echoid-s4082" xml:space="preserve">di piu cornici inſieme; </s>
            <s xml:id="echoid-s4083" xml:space="preserve">& </s>
            <s xml:id="echoid-s4084" xml:space="preserve">chi murerà l’una cor-
              <lb/>
            nice ſopra l’altra, o un arco ſopra l’altro, quando bene uoleſſe rouinare; </s>
            <s xml:id="echoid-s4085" xml:space="preserve">dõde co-
              <lb/>
            mincerà egli? </s>
            <s xml:id="echoid-s4086" xml:space="preserve">andando tutte le pietre ad arco maſsimamente cõ le loro linee ad
              <lb/>
              <note position="left" xlink:label="note-094-06" xlink:href="note-094-06a" xml:space="preserve">30</note>
            un centro, cõ uguali forze, & </s>
            <s xml:id="echoid-s4087" xml:space="preserve">aggrauamẽto. </s>
            <s xml:id="echoid-s4088" xml:space="preserve">De la ſtabilità di queſta uolta, cer-
              <lb/>
            ti de gli antichi ſene fidarono tanto, che egli meſſono ſolamente cornici ſempli
              <lb/>
            ci di mattoni, in alcuni determinati piedi, & </s>
            <s xml:id="echoid-s4089" xml:space="preserve">finirono il reſto della uolta di pez-
              <lb/>
            zami poſtiui ſenza ordine. </s>
            <s xml:id="echoid-s4090" xml:space="preserve">Ma io lodo molto piu coloro, iquali in fare tali
              <lb/>
            opere, procurarono che con quella arte che le pietre ſi collegano nelle mura,
              <lb/>
              <note position="left" xlink:label="note-094-07" xlink:href="note-094-07a" xml:space="preserve">35</note>
            con quella medeſima ancora in queſti lauori le cornici di ſotto, ſi colleghino
              <lb/>
            con le cornici di ſopra uicine: </s>
            <s xml:id="echoid-s4091" xml:space="preserve">& </s>
            <s xml:id="echoid-s4092" xml:space="preserve">gli archi ancora ſi colleghino in moltiſsimi
              <lb/>
            luoghi, & </s>
            <s xml:id="echoid-s4093" xml:space="preserve">maſsimo ſe non ui ſarà gran copia di Rena di caua, o ſe la muraglia
              <lb/>
            ſi porrà eſpoſta a uenti Marini, o Auſtrali. </s>
            <s xml:id="echoid-s4094" xml:space="preserve">Potrai ancora uolgere ſenza alcu-
              <lb/>
            na armadura la Tribuna a ſpicchi; </s>
            <s xml:id="echoid-s4095" xml:space="preserve">purche tu uolga dentro nella ſua ſteſſa groſ-
              <lb/>
              <note position="left" xlink:label="note-094-08" xlink:href="note-094-08a" xml:space="preserve">40</note>
            ſezza una cupola a mezo cerchio perfetto. </s>
            <s xml:id="echoid-s4096" xml:space="preserve">Ma quì hai tu biſogno grandiſsi-
              <lb/>
            mamente di legature, con le quali tu leghi ſtrettiſsimamente, le parti piu debo-
              <lb/>
            li di eſſa, alle parti ſtabiliſsime di queſta. </s>
            <s xml:id="echoid-s4097" xml:space="preserve">Ma ti biſognerà niente dimeno ha-
              <lb/>
            uer’ meſſo ſotto l’uno, o ſotto i piu filari di pietra, che tu harai murati, alcune</s>
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