Castelli, Benedetto, Of the mensuration of running waters, 1661

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              der his Art the more profitable, he reduceth the lofty, and eaſie-to­
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              be-miſtaken Speculations of the Theory, into certain and facile
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              Directions for Practice; teaching us how to prevent and repaire
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              the Breaches of Seas, and Inundations of Rivers; to draine
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              and recover Fenns and Marches; to divert, conveigh and di­
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              ſtribute Waters for the Flowing and Stercoration of Grounds,
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              ſtrengthening of Fortifications, ſerving of Aquaducts, preſer­
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              ving of Health (by cleanſing Streets, and ſcowring Sewers) and
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              maintaining of Commerſe (by defending Bridges, cleering Ri­
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              vers, and opening Ports and Channels) with innumerable other
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              Benefits of the like nature. </s>
              <s>And, that I may omit no circumſtance
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              that may recommend my Authour, the Fortune of this his Trea­
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              tiſe hath been ſuch, that as if he intended a
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              Plus ultra
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              by it,
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              or as if all men deſpaired to out-do it, or laſtly, as if
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              CA­
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              STELLI
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              hath been ſo great a
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              Maſter
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              that none have preſu­
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              med to take Pencil in hand for the finiſhing of what he
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              Pour­
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              foild,
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              this ſmall Tract like the Arabian Phœnix (of which it is
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              ſaid
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              Unica ſemper Avis)
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              did for ſeveral years together continue
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              ſingle in the World, till that to verifie it to be truly
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              Phœnician,
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                <emph type="italics"/>
              it renewed its Age by undergoing a ſecond Impreſſion. </s>
              <s>And as if
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              this did not make out the Immortal vertue of it, it hath had
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              Anno 1660
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              a third Circulation, and riſen in this laſt Edition as
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              it were from the Vrne of its Authour; and that ſo improved by
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              the Addition of a ſecond part, that it promiſeth to perpetuate
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              his Merits to all Poſterity. </s>
              <s>To be brief, the meer Fame of this
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              Work reſounded the Honourable Name of
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              CASTELLI
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              in­
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              to all the Corners of
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              Italy,
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              I may ſay of
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              Europe;
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              inſomuch,
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              that, in hopes to reap great benefit by his Art, the reſpective
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              Grandees of the adjacent Countries courted his Judgment and
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              Advice about their Draining of Fenns, Diverſion of Rivers,
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              Evacuation of Ports, Preventing of Inundations, &c. </s>
              <s>So that
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              every Summer he made one or more of theſe Journies or Viſitati­
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              ons. </s>
              <s>Particularly, the Senate of
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              Venice
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              conſulted him about their
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              Lake; to whom he delivered his Opinion in
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              May 1641.
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              and up­
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              on farther thoughts he preſented them with another Paper of Con­
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              ſiderations the
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              20 December
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              following. </s>
              <s>Prince
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              LEOPOLDO
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              of
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              TUSCANY
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              likewiſe requeſted his Advice in the begin­
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              ning of the enſuing year 1642, which occaſioned his Letter to
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              Father
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              Franceſco di San Giuſeppe,
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              bearing date
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              February 1,
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              To which
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              Signore Bartolotti
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              oppoſing, he writes a ſecond Let­
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              ter, directed to one of the Commiſſioners of Sewers, vindicating
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              his former, and refuting
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              Bartolotti,
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              both which I here give
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              you.
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              <s>§.
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              The Preferments which his Merits recommended him unto,
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              were firſt to be Abbot of
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              Caſſino,
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              from which he was removed
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              </s>
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