Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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              <s>
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              neſſe of the Veſſel, in its acquiring in ſeveral hours of the day
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              ſeveral degrees of velocity, they are with very little difference
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              acquired by all its parts; for as well the precedent as the
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              quent, that is to ſay, both the Eaſtern and Weſtern parts, do
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              accelerate and retard almoſt in the ſame manner; and withal
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              making that alteration by little and little, and not by giving the
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              motion of the conteining Veſſel a ſudden check, and
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              ment, or a ſudden and great impulſe or acceleration; both it
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              and all its parts, come to be gently and equally impreſſed with
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              the ſame degrees of velocity; from which uniformity it
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              eth, that alſo the conteined water with but ſmall reſiſtance and
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              oppoſition, receiveth the ſame impreſſions, and by conſequence
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              doth give but very obſcure ſignes of its riſing or falling, or of its
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              running towards one part or another. </s>
              <s>The which effect is likewiſe
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              manifeſtly to be ſeen in the little artificial Veſſels, wherein the
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              contained water doth receive the ſelf ſame impreſſions of
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              ty; when ever the acceleration and retardation is made by gentle
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              and uniform proportion. </s>
              <s>But in the Straights and Bays that for a
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              great length diſtend themſelves from Eaſt to Weſt, the
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              ration and retardation is more notable and more uneven, for
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              that one of its extreams ſhall be much retarded in motion, and
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              the other ſhall at the ſame time move very ſwiftly: The
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              procal libration or levelling of the water proceeding from the
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              petus
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              that it had conceived from the motion of its container.
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              </s>
              <s>The which libration, as hath been noted, hath its undulations
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              very frequent in ſmall Veſſels; from whence enſues, that though
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              there do reſide in the Terreſtrial motions the cauſe of
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              ring on the waters a motion onely from twelve hours to twelve
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              hours, for that the motion of the conteining Veſſels do
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              treamly accelerate and extreamly retard but once every day,
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              and no more; yet nevertheleſſe this ſame ſecond cauſe
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              ing on the gravity of the water which ſtriveth to reduce it ſelf to
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              equilibration, and that according to the ſhortneſſe of the
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              ſel hath its reciprocations of one, two, three, or more hours, this
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              intermixing with the firſt, which alſo it ſelf in ſmall Veſſels is
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              very little, it becommeth upon the whole altogether inſenſible.
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              </s>
              <s>For the primary cauſe, which hath the periods of twelve hours,
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              having not made an end of imprinting the precedent
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              on, it is overtaken and oppoſed by the other ſecond,
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              dant on the waters own weight, which according to the brevity
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              and profundity of the Veſſel, hath the time of its undulations of
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              one, two, three, four, or more hours; and this contending
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              with the other former one, diſturbeth and removeth it, not
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              mitting it to come to the height, no nor to the half of its
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              on; and by this conteſtation the evidence of the ebbing and </s>
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