Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660
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              ning at the upper Orifice, and occaſion'd,
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              as it ſeem'd, by the exceſſive heat of too
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              large an Iron that was employ'd to melt
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              the Cement about that Orifice. </s>
              <s>But ha­
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              ving laid upon this crack a broad Plaiſter,
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              which in one of our Eſſays written ſome
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              years ſince to your ingenious and hopeful
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              Couſin
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              Fones,
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              we extoll for the mending
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              of crack'd Receivers, and other Chymi­
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              cal Glaſſes; and having afterwards thick­
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              ly over-laid this Plaiſter with Diachylon,
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              we neither could then, nor can yet per­
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              ceive that the Veſſel leaks ſenſibly at that
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              crack. </s>
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              <s>The Plaiſter was made of good quick
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              Lime finely poudred, and nimbly ground
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              with a Peſtle in a Morter, with a quantity
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              (I know not how much preciſely, not ha­
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              ving thoſe Eſſays in this place) of ſcra­
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              pings of Cheeſe and a little fair Water,
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              no more then is juſt neceſſary to bring the
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              mixture to a ſomewhat ſoft Paſte, which
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              when the Ingredients are exquiſitely in­
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              corporated, will have a ſtrong and
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              ſtincking ſmell: Then it muſt be im­
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              mediately ſpread upon a Linnen Cloath
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              three or four fingers breadth, and preſently
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              apply'd, leſt it begin to harden. </s>
              <s>But if
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              Your Lordſhip had ſeen how we mended </s>
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