Alberti, Leon Battista, L' architettura

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            <s xml:id="echoid-s3338" xml:space="preserve">
              <pb o="73" file="077" n="77" rhead="LIBRO TERZO."/>
            ua eſſa maſſa le prime figure delle ſueparti. </s>
            <s xml:id="echoid-s3339" xml:space="preserve">Di quì è che in eſſe pietre le parti
              <lb/>
            di ſotto ſono di corpicelli piu graui, & </s>
            <s xml:id="echoid-s3340" xml:space="preserve">maggiori, che quelle di ſopra; </s>
            <s xml:id="echoid-s3341" xml:space="preserve">Et ui in-
              <lb/>
            tracorrono uene, ſecondo che la materia poſta ſopra l'altra materia, ſi ſtrinſe in
              <lb/>
            ſieme. </s>
            <s xml:id="echoid-s3342" xml:space="preserve">Quelle coſe che dentro a le Vene ſi truouano, o ſieno eſſe ueramente
              <lb/>
            ſtiume della prima congelataſi materia meſcolata inſieme con le feccie della ſo
              <lb/>
              <note position="left" xlink:label="note-077-01" xlink:href="note-077-01a" xml:space="preserve">5</note>
            pragiuntaui materia: </s>
            <s xml:id="echoid-s3343" xml:space="preserve">o ſiano pure quale altra coſa ſi uoglino, non hauendo per-
              <lb/>
            meſſo la Natura che coſi diſcrepanti s'uniſsino del tutto inſieme, no n è maraui-
              <lb/>
            glia che ſieno atte al fenderſi nelle pietre. </s>
            <s xml:id="echoid-s3344" xml:space="preserve">Oltra di queſto ſi com e il fatto da
              <lb/>
            per ſe ſteſſo dimoſtra, & </s>
            <s xml:id="echoid-s3345" xml:space="preserve">è manifeſto per l'ingiuria de Tempi (per dir coſi) accio-
              <lb/>
            che noi non andiamo ricercando coſe piu recondite, tutti i corpi cõpoſti, & </s>
            <s xml:id="echoid-s3346" xml:space="preserve">am-
              <lb/>
              <note position="left" xlink:label="note-077-02" xlink:href="note-077-02a" xml:space="preserve">10</note>
            maſſati ſi disfanno, & </s>
            <s xml:id="echoid-s3347" xml:space="preserve">ſi riſoluono: </s>
            <s xml:id="echoid-s3348" xml:space="preserve">Coſi ancora nelle pietre quelle parti che ſo-
              <lb/>
            no eſpoſte a ſofferire le tempeſte, ſono piu atte a macerarſi, & </s>
            <s xml:id="echoid-s3349" xml:space="preserve">a putrefarſi. </s>
            <s xml:id="echoid-s3350" xml:space="preserve">Le
              <lb/>
            quali coſe eſſendo coſi, uogliono che nel collocare le pietre ſi auertiſca di porre
              <lb/>
            contro le offenſioni delle coſe contrarie, quelle faccie delle Pietre che ſono ſal-
              <lb/>
            diſsime, & </s>
            <s xml:id="echoid-s3351" xml:space="preserve">che non ſono atte ad eſſere coſi preſto conſumate, in quelle parti maſ
              <lb/>
              <note position="left" xlink:label="note-077-03" xlink:href="note-077-03a" xml:space="preserve">15</note>
            ſimo dello edificio, che debbono eſſere le piu gagliarde. </s>
            <s xml:id="echoid-s3352" xml:space="preserve">Nõ ſi porrà adũque
              <lb/>
            la Vena per ritto, accioche per i cattiui tẽporali le Pietre non ſi ſcorteccino: </s>
            <s xml:id="echoid-s3353" xml:space="preserve">Ma
              <lb/>
            metteraſsi a giacere diſteſa, accioche aggrauata per il peſo delle diſopra, non
              <lb/>
            apra mai in luogo alcuno. </s>
            <s xml:id="echoid-s3354" xml:space="preserve">Et la faccia che nella caua era piu aſcoſa, ſi debbe
              <lb/>
            collocare in modo che reſti allo ſcoperto: </s>
            <s xml:id="echoid-s3355" xml:space="preserve">Percioche ella è piu ſugoſa, & </s>
            <s xml:id="echoid-s3356" xml:space="preserve">piu for-
              <lb/>
              <note position="left" xlink:label="note-077-04" xlink:href="note-077-04a" xml:space="preserve">20</note>
            te. </s>
            <s xml:id="echoid-s3357" xml:space="preserve">Ma in tutta la pietra di Caua, non ſi trouerà faccia alcuna piu atta al ſop-
              <lb/>
            portare che quella, che ſi ſtaccherà non per il filone della caua, ma che taglierà a
              <lb/>
            trauerſo la lunghezza della giacente maſſa. </s>
            <s xml:id="echoid-s3358" xml:space="preserve">Oltra di queſto le Cantonate per
              <lb/>
            tutto lo edificio, percioche elle debbono eſſere oltra modo gagliardiſsime, ſi
              <lb/>
            debbono fare di muraglia ſaldiſsima: </s>
            <s xml:id="echoid-s3359" xml:space="preserve">Concioſia certamente, che ſeio ne giudico
              <lb/>
              <note position="left" xlink:label="note-077-05" xlink:href="note-077-05a" xml:space="preserve">25</note>
            bene, ciaſcuna Cantonata è la metà del tutto dello edificio. </s>
            <s xml:id="echoid-s3360" xml:space="preserve">Però che il manca
              <lb/>
            mento dìuna cantonata non può ſuccedere ſenza il danno di amenduoi gli lati.
              <lb/>
            </s>
            <s xml:id="echoid-s3361" xml:space="preserve">Et ſe tu conſideri queſto, Tu trouerai ſenza dubbio che quaſi neſſuno edificio è
              <lb/>
            cominciato a rouinare per altro, che per il difetto delle Cantonate. </s>
            <s xml:id="echoid-s3362" xml:space="preserve">Conſide-
              <lb/>
            ratamente adunque uſarono gli Antichi di fare le Cantonate piu groſſe che le
              <lb/>
              <note position="left" xlink:label="note-077-06" xlink:href="note-077-06a" xml:space="preserve">30</note>
            mura; </s>
            <s xml:id="echoid-s3363" xml:space="preserve">& </s>
            <s xml:id="echoid-s3364" xml:space="preserve">di aggiugnere ad eſſe, alie piu ferme ne portichi doue ſono le colonne.
              <lb/>
            </s>
            <s xml:id="echoid-s3365" xml:space="preserve">La ſaldezza della Cantonata adunque, non ſi deſidera perche ella regga la co-
              <lb/>
            pertura (Perioche queſto è piu toſto officio delle Collõne, che delle cantonate)
              <lb/>
            Ma principalmẽte perche le mura ſi mantenghino inſieme a fare gli officij loro; </s>
            <s xml:id="echoid-s3366" xml:space="preserve">
              <lb/>
            & </s>
            <s xml:id="echoid-s3367" xml:space="preserve">non ſi pieghino da alcuna delle bande dal filo del piombo. </s>
            <s xml:id="echoid-s3368" xml:space="preserve">Sarà adunque
              <lb/>
              <note position="left" xlink:label="note-077-07" xlink:href="note-077-07a" xml:space="preserve">35</note>
            queſta cãtonata, di pietre lunghiſsime, & </s>
            <s xml:id="echoid-s3369" xml:space="preserve">duriſsime, che ſi dilatino ꝑ la lunghez-
              <lb/>
            za delle mura a guiſa di braccia, & </s>
            <s xml:id="echoid-s3370" xml:space="preserve">di mani; </s>
            <s xml:id="echoid-s3371" xml:space="preserve">& </s>
            <s xml:id="echoid-s3372" xml:space="preserve">ſiano larghe queſte pietre ſecondo
              <lb/>
            la larghezza delle mura; </s>
            <s xml:id="echoid-s3373" xml:space="preserve">accioche nel mezo nõ ui ſia biſogno di ripieno alcuno.
              <lb/>
            </s>
            <s xml:id="echoid-s3374" xml:space="preserve">Egli è coſa conueniente ancora, che nelle mura, & </s>
            <s xml:id="echoid-s3375" xml:space="preserve">ne lati de uani, ſieno oſſami
              <lb/>
            ſimili alle cantonate, & </s>
            <s xml:id="echoid-s3376" xml:space="preserve">tanto piu ſaldi, quanto che haranno a ſtare ſotto a peſi
              <lb/>
              <note position="left" xlink:label="note-077-08" xlink:href="note-077-08a" xml:space="preserve">40</note>
            maggiori: </s>
            <s xml:id="echoid-s3377" xml:space="preserve">Et ſopra tutto biſogna laſciare morſe, cioè alcune pietre di quà, & </s>
            <s xml:id="echoid-s3378" xml:space="preserve">di
              <lb/>
            là, che ſportino in fuori da l'uno ordine ſi & </s>
            <s xml:id="echoid-s3379" xml:space="preserve">dall'altro no; </s>
            <s xml:id="echoid-s3380" xml:space="preserve">delle pietre; </s>
            <s xml:id="echoid-s3381" xml:space="preserve">quaſi che
              <lb/>
            aiutamenti, & </s>
            <s xml:id="echoid-s3382" xml:space="preserve">appiccamenti a ſoſtenere il reſtante dello altro muro.</s>
            <s xml:id="echoid-s3383" xml:space="preserve"/>
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