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

Table of figures

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              <s>
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              have, that ſo it may not depoſe the matter of the muddineſs when
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              it is intended to be let into
                <emph type="italics"/>
              Volana.
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              </s>
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            <p type="margin">
              <s>
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              * In Chanels
                <lb/>
              made by hand.</s>
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              <s>So that making the Line of the bottome neer to
                <emph type="italics"/>
              Vigarano,
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              it
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              would riſe to thoſe prodigious termes that they do make bigger,
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              and they may thence expect thoſe miſchiefs, for which they
                <lb/>
              will not admit of introducing it into the ſaid P
                <emph type="italics"/>
              o
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              of
                <emph type="italics"/>
              Volana.
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              </s>
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              <s>Amongſt the wayes therefore that I have thought of for effect­
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              ing that ſame remotion, and which I have cauſed to be viewed by
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              skilful men that have taken a level thereof, (with the aſſiſtance of
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              the venerable Father,
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              D. </s>
              <s>Benedetto Caſtelli
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              of
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              Caſina,
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              a man of
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              much fidelity and honeſty, and no leſs expert in ſuch like affairs
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              touching waters, than perfect in the
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              Mathematick
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              Diſciplines) two
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              onely, the reſt being either too tedious, or too dangerous to the
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              City, have ſeemed to me worthy, and one of them alſo more than
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              the other, to offer to your Lordſhip.</s>
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              <s>The one is to remit it into the Chanel of
                <emph type="italics"/>
              Volana,
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              thorow which
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              it goeth of its own accord to the Sea.</s>
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              <s>The other is to turn it into
                <emph type="italics"/>
              Main-Po
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              at
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              Stellata,
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              for, as at other
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              times it hath done, it will carry it to the Sea happily.</s>
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              <s>As to what concerns the making choice of the firſt way, that
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              which ſeemeth to perſwade us to it is, that we therein do nothing
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              that is new, in that it is but reſtored to the place whence it was
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              removed in the year 1522. in the time of Pope
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              Adrian,
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              by an
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              agreement made in way of contract, between
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              Alfonſo,
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              Duke of
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                <emph type="italics"/>
              Ferrara,
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              and the
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              Bologneſi
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              ; and that it was diverted for reaſons,
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              that are either out of date, or elſe have been too long time
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              deferred.</s>
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              <s>In like manner the facility wherewith it may be effected, let­
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              ting it run into the divided P
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              o,
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              whereby it will be turned to
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              Fer­
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              rara,
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              or elſe carrying it by
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              Torre del Fondo,
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              to the mouth of
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              Maſi,
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              and from thence thorow the Trench made by the
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              Ferrareſi,
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                <lb/>
              along by
                <emph type="italics"/>
              Panaro,
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              where alſo finding an ample Bed, and high and
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              thick Banks, that will ſerve at other times for it, and for the wa­
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              ters of P
                <emph type="italics"/>
              o,
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              there may a great expence be ſpared.</s>
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              <s>That what ever its Fall be, it would maintain the ſame, not
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              having other Rivers, which with their Floods can hinder it; and
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              that running confined between good Banks, without doubt it
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              would not leave
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              la Motto
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              by the way; but eſpecially, that it
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              would be ſufficient if it came to
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              Codigoro,
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              where being aſſiſted by
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              the Ebbing and Flowing of the Sea, it would run no hazard of
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              having its Chanel filled up from thence downwards.</s>
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              <s>That there might thence many benefits be derived to the City,
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              by means of the Running Waters, and alſo no mean Navigation
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              might be expected.</s>
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              <s>On the contrary it is objected, That it is not convenient to </s>
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