Heron Alexandrinus, Spiritali di Herone Alessandrino

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              Sia la detta baſe riſerrata AB, che habbia il tramezzo CD, & al
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              tramezzo ſia congiunto vn picciolo
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              1
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              Cono EF concauo, e ſpuntato, il gi-
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              ro minore del quale ſia F, aperto verſo il fondo, e poco lontano da quel-
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              lo, cioè quanto ſia baſtante per dare il paſſo all'acqua, e dentro a queſto
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              ſia bene accommodato vn'altro cono H, legato con qualche catenella, che
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              per vn buco ariui al pomo K, poſato ſopra la baſe; Hercole poi tenghi
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              vn'arco di
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              2
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              Cornio ben teſo, e tenghilo tanto lunge alla deſtra mano,
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              quanto baſti; dentro alla deſtra mano all'incontro del drago, ſia vna
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              mano in tutto, e per tutto ſimile a quella di fuori, dall'eſſere piccola in
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              poi, e che habbia l'incocca, che ſcocchi la corda, e dalla parte die-
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              tro dell'incocca ſia legata vna catena, ouero fune, che per la baſe ſi
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              conduchi alla girella poſta ſopra del tramezzo, e di là poi alla catenella
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              doue ſtà legato il cono, & il pomo.</s>
              <s> Caricaremo dunque l'arco, e pone-
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              remo la corda nell'incocca dentro la mano di Hercole, di modo però
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              che la catenella ſtia bene diſteſa, & il pomo venghi a forza in giù tirato:
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              ſia dopo vna fune, che paſſi dentro per il corpo, e per la mano di Herco-
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              le; e dal tramezzo fin ſopra la baſe ſi prolunghi vna piccola canna di
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              queſte, che ſi adoperano per fiſchiare, che rieſchio ſotto l'arbore, o den-
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              tro in eſſo; hora empiaſi il vaſo AB di acqua, ſia l'arborcello LM, l'ar-
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              co NX, la ſua corda OP, la mano che lo tiene RS, l'incocca T
                <foreign lang="grc">γριεξηισξηε Bυξησταβεν</foreign>
              , la
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              fune VQ, la girella per doue paſſa la fune Q, la canna che fiſchia
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              Z
                <foreign lang="grc">γριεξηισξηε Bυξησταβεν</foreign>
              .</s>
              <s> Se alcuno dunque alzarà da terra il pomo K, alzarà anco inſieme
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              il cono H, e tirarà la fune
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              VQ, che leuarà la mano, di modo che la
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              frezza ſi auenti, e l'acqua, che è nel vaſo AD ſcendendo nel vaſo BC
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              ſcacciarà per quella canna l'aria, che vi è dentro, & ella farà il fiſchio;
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              ma ripoſto poi giù il pomo, il cono, che entra nell'altro, fermarà il corſo
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              dell'acqua, di modo che il fiſchio non durerà poi più.</s>
              <s> Di nuouo dopo ac-
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              conciaremo quelle coſe, che ſono intorno alla frezza, e laſciaremole ſta-
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              re, e ſi il vaſo BC ſerà pieno, tornaremo a votarlo per mezzo di qual-
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              che cannella, che habbi la ſua chiauetta, & il vaſo AD l'empiremo
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              come prima.</s>
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              ANNOTATIONI DI A.</s>
              <s> G.</s>
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              </s>
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              1
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              Cono, auertaſi che delli due coni il primo, che uà di fuora deue eſſere aperto
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              nel fondo, ma l'altro nò.
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              </s>
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              2
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              Cornio è arbore notiſsimo molto duro, e forte, però uſato da gli antichi per
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              fare archi, & haſte, onde Virgilio diſſe nella Georgica, & bona bello cornus.
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