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

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              <s>1. From which operation doth follow in the firſt place, that
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              the Lake being filled and increaſed by tbeſe Waters, ſhall be
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              more Navigable, and paſſible, than at preſent we ſee it to be.</s>
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              <s>2. By the current of theſe Waters, the Chanels will be ſcour­
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              ed, and will be kept clean from time to time.</s>
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              <s>3. There will not appear at the times of low-waters ſo many
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              Shelves, and ſuch heaps of Mud, as do now appear.</s>
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              <s>4. The Ayr will become more wholeſom, for that it ſhall not
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              be ſo infected by putrid vapours exhaled by the Sun, ſo long as
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              the Miery Ouze ſhall be covered by the Waters.</s>
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              <s>5. Laſtly, in the current of theſe advantagious Waters,, which
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              muſt iſſue out of the Lake into the Sea, beſides thoſe of the Tyde,
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              the Ports will be kept ſcoured, and clear: And this is as much as
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              I ſhall offer for the preſent, touching this weighty buiſineſs; al­
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              waies ſubmitting my ſelf to ſounder judgements.</s>
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              <s>Of the above-ſaid Writing I preſented a Copy at
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              Venice,
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              at a
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              full Colledge, in which I read it all, and it was hearkned to with
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              very great attention; and at laſt I preſented it to the Duke, and
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              left ſome Copies thereof with ſundry Senators, and went my way,
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              promiſing with all intenſeneſs to apply my pains with reiterated
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              ſtudies in the publick ſervice; and if any other things ſhould come
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              into my minde, I promiſed to declare them ſincerely, and ſo took
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              leave of
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              His ſerenity,
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              and that Noble Council. </s>
              <s>When I was
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              returned to
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              Rome,
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              this buſineſs night and day continually run­
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              ning in my mind, I hapned to think of another admirable and
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              moſt important conceit, which with effectual reaſons, confirmed
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              by exact operations, I with the Divine aſſiſtance, made clear and
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              manifeſt; and though the thing at firſt ſight ſeemed to me a moſt
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              extravagant Paradox, yet notwithſtanding, having ſatisfied my
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              ſelf of the whole buſineſs, I ſent it in writing to the moſt Illuſtri­
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              ous and moſt Noble
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              Signore Gio. </s>
              <s>Baſadonna
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              ; who after he had
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              well conſidered my Paper, carried it to the Council; and after
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              that thoſe Lords had for many months maturely conſidered
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              thereon, they in the end reſolved to ſuſpend the execution of the
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              diverſion which they had before conſulted to make of the River
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                <emph type="italics"/>
              Sile,
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              and of four other Rivers, which alſo fall into the Lake; a
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              thing by me blamed in this ſecond Paper, as moſt prejudicial,
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              and harmful. </s>
              <s>The writing ſpake as followeth.</s>
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