Agricola, Georg, De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ..., 1556
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            <p id="N197EB" type="main">
              <s id="N1983B">
                <pb pagenum="302" xlink:href="001/01/312.jpg"/>
              Deinde utrobique paulatim fit anguſtior, adeo ut anguſtiſſima eius pars tan
                <lb/>
              tummodo lata fiat palmos duos & totidem digitos. </s>
              <s id="N19849">Sed curuaturæ exterio
                <lb/>
              res cum interioribus ſic committuntur, ut quæque exterior in medio interio­
                <lb/>
              ris finiatur: & contra quæque interior in medio exterioris: quali compactio­
                <lb/>
              ne tympanum firmius fieri dubium
                <expan abbr="nõ">non</expan>
              eſt. </s>
              <s id="N19856">Curuaturæ præterea exteriores
                <lb/>
              cum interiorib. </s>
              <s id="N1985B">
                <expan abbr="cõglutinãtur">conglutinantur</expan>
              crebris clauis ligneis. </s>
              <s id="N19861">Curuatura uerò quæque,
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              ſi eam per tergum
                <expan abbr="rotundũ">rotundum</expan>
              dimetimur, longa eſt pedes quatuor & palmos
                <lb/>
              tres. </s>
              <s id="N1986C">Verùm radij ſunt quatuor, lati palmos duos, craſſi palmum &
                <expan abbr="digitũ">digitum</expan>
              ,
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              longi exceptis capitibus pedes duos & digitos tres: quorum alterum caput
                <lb/>
              includitur in axe, ibique paxillis adactis firmatur: alterum in trianguli
                <expan abbr="figurã">figuram</expan>
                <lb/>
              formatum in curuaturæ exterioris, ipſi oppoſitæ, partem latiorem includi­
                <lb/>
              tur: partim ſuam ſeruans figuram tam altè quàm curuatura
                <expan abbr="aſcẽdit">aſcendit</expan>
              , ligneoque
                <lb/>
              clauo cum ipſa coniungitur & conglutinatur: qui clauus ſub interiore orbe
                <lb/>
              infigitur in radio: ſed pars radij in
                <expan abbr="triãguli">trianguli</expan>
              figuram formata interior eſt, ſim­
                <lb/>
              plex exterior. </s>
              <s id="N1988D">At
                <expan abbr="triãgulus">triangulus</expan>
              iſte duo latera habet æqualia, erecta ſcilicet, quæ
                <lb/>
              longa ſunt palmum. </s>
              <s id="N19896">Eis uerò ſubiectum eſt inæquale, nam longum digitos
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              quinque. </s>
              <s id="N1989B">Ad eandem figuram pars ex curuatura exciſa eſt. </s>
              <s id="N1989E">Porrò tympanum
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              dentes habet numero ſexaginta: quia enim neceſſe eſt tympanum, cui ſunt
                <lb/>
              fuſi, bis uerti anteaquam hoc ipſum ſemel uertatur, tot ſint oportet: longi au
                <lb/>
              tem ſunt pedem. </s>
              <s id="N198A7">Extant enim ex tympani orbe interiore palmum, ex exteri
                <lb/>
              ore digitos tres: at lati ſunt palmum, craſſi digitos duos & dimidium. </s>
              <s id="N198AC">Vt au
                <lb/>
              tem unus ab altero diſtet digitis tribus
                <expan abbr="nõ">non</expan>
              aliter ac fuſi, ipſa res poſtulat. </s>
              <s id="N198B5">A­
                <lb/>
              xis autem craſſitudo ſecundum proportionem radiorum & curuaturarum
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              debet confici. </s>
              <s id="N198BC">Quoniam uerò bini eius dentes ſingula deprimunt tigilla, i­
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              pſum
                <expan abbr="dẽtes">dentes</expan>
              habere quatuor & uiginti neceſſe eſt: quorum quiſque ex eo exis
                <lb/>
              tet pedem & palmum ac digitum: figuram ferè habens ſemicirculi, cuius la­
                <lb/>
              tior pars lata ſit palmos tres &
                <expan abbr="digitũ">digitum</expan>
              : quæque uerò craſſa palmum. </s>
              <s id="N198CD">Sed den­
                <lb/>
              tes diſtribuendi ſunt ſecundum has quatuor axis partes ſuperiorem & infe
                <lb/>
              riorem atque duas quæ ſunt à lateribus: itaque axis habeat duodecim forami­
                <lb/>
              na: quorum primum ex ſuperiore parte per eum penetret in inferiorem: ſe­
                <lb/>
              cundum ex uno latere in alterum. </s>
              <s id="N198D8">Primum autem diſtet à ſecundo pedibus
                <lb/>
              quatuor & palmis duobus. </s>
              <s id="N198DD">
                <expan abbr="Eodẽ">Eodem</expan>
              modo bina quæque foramina, quæ ſequun
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              tur, ſe habeant, & ijſdem interuallis diſtinguantur: cùm præterea dentes ſin
                <lb/>
              guli ſingulis
                <expan abbr="debeãt">debeant</expan>
              eſſe oppoſiti, primus includitur in primi foraminis par
                <lb/>
              tem ſuperiorem, ſecundus in eiuſdem partem inferiorem, paxillisque adactis
                <lb/>
              firmantur ne ex eis excidant. </s>
              <s id="N198EF">Tertius uerò includitur in ſecundi foraminis
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              partem, quæ eſt à dextro latere. </s>
              <s id="N198F4">Quartus in eiuſdem partem, quæ eſt à ſini­
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              ſtro: pari modo alij dentes includuntur in ſequentia foramina: qua ratione
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              fit, ut dentes uiciſſim tigilla deprimant. </s>
              <s id="N198FB">Poſtremò ne hoc quidem omitten­
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              dum, multis unum tantummodo eſſe axem, cui dentes ſimul & rota ſint.</s>
            </p>
            <p id="N19900" type="caption">
              <s id="N19902">A
                <emph type="italics"/>
              xis
                <emph.end type="italics"/>
              A. R
                <emph type="italics"/>
              ota
                <emph.end type="italics"/>
              B. T
                <emph type="italics"/>
              ympanum ex fuſis conſtans
                <emph.end type="italics"/>
              C.
                <lb/>
              A
                <emph type="italics"/>
              lter axis
                <emph.end type="italics"/>
              D. T
                <emph type="italics"/>
              ympanum dentatum
                <emph.end type="italics"/>
              E. E
                <emph type="italics"/>
              ius radij
                <emph.end type="italics"/>
              F.
                <lb/>
              E
                <emph type="italics"/>
              iuſdem curuaturæ
                <emph.end type="italics"/>
              G. E
                <emph type="italics"/>
              iuſdem dentes
                <emph.end type="italics"/>
              H. A
                <emph type="italics"/>
              xis dentes
                <emph.end type="italics"/>
              I.</s>
            </p>
          </chap>
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