Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667
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              as one, that beſides your being born, and having, for a long
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              time, dwelt in
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              Venice,
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              where the Tides are very notable for their
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              greatneſſe, have alſo ſailed into
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              Syria,
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              and, as an ingenuous and
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              apprehenſive wit, muſt needs have made many Obſervations
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              on this ſubject: whereas I, that could onely for a time, and that
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              very ſhort, obſerve what happened in theſe extream parts of the
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              Adriatick
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              Gulph, and in our Seas below about the
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              Tyrrhene
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              ſhores, muſt needs take many things upon the relation of
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              thers, who, for the moſt part, not very well agreeing, and
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              ſequently being very uncertain, contribute more of confuſion
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              than confirmation to our ſpeculations. </s>
              <s>Nevertheleſſe, from thoſe
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              that we are ſure of, and which are the principal, I think I am
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              ble to attain to the true and primary cauſes; not that I pretend
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              to be able to produce all the proper and adequate reaſons of
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              thoſe effects that are new unto me, and which conſequently I
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              could never have thought upon. </s>
              <s>And that which I have to ſay,
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              I propoſe only, as a key that openeth the door to a path never
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              yet trodden by any, in certain hope, that ſome wits more
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              lative than mine, will make a further progreſſe herin, and
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              trate much farther than I ſhall have done in this my firſt
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              very: And although that in other Seas, remote from us, there may
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              happen ſeveral accidents, which do not happen in our
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              ranean Sea, yet doth not this invalidate the reaſon and cauſe that
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              I ſhall produce, if ſo be that it veriſie and fully reſolve the
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              cidents which evene in our Sea: for that in concluſion there can
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              be but one true and primary cauſe of the effects that are of the
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              ſame kind. </s>
              <s>I will relate unto you, therefore, the effects that I
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              know to be true, and aſſigne the cauſes thereof that I think
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              to be true, and you alſo, Gentlemen, ſhall produce ſuch
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              others as are known to you, beſides mine, and then we will
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              try whether the cauſe, by me alledged, may ſatisfie them
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              alſo.</s>
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              <s>
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              Three Periods
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              of ebbings and
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              flowings, diurnal,
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              monethly, and
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              nual.
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              <s>I therefore affirm the periods that are obſerved in the fluxes
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              and refluxes of the Sea-waters to be three: the firſt and
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              pal is this great and moſt obvious one; namely, the diurnal,
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              ding to which the intervals of ſome hours with the waters flow and
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              ebbe; and theſe intervals are, for the moſt part, in the
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              rane from ſix hours to ſix hours, or thereabouts, that is, they for
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              ſix hours flow, and for ſix hours ebbe. </s>
              <s>The ſecond period is
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              monethly, and it ſeemes to take its origen from the motion of
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              the Moon, not that it introduceth other motions, but only
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              tereth the greatneſſe of thoſe before mentioned, with a notable
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              difference, according as it ſhall wax or wane, or come to the
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              Quadrature with the Sun. </s>
              <s>The third Period is annual, and is
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              ſeen to depend on the Sunne, and onely altereth the diurnal </s>
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