Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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              <s>
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              Recent Aſtronomers, who ſeem willing
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              to enlarge its bounds as much as they dare,
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              does reach. </s>
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            <p type="main">
              <s>But leſt you ſhould expect my ſeconding
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              this Reaſon by Experience; and leſt you
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              ſhould object, That moſt of the
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                ments</expan>
              that have been propoſ'd to prove the
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              gravity of the Air, have been either barely
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              propoſ'd, or perhaps not accuratly try'd; I
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              am content, before I paſs further, to menti­
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              on here, That I found a dry lambs-bladder
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              containing near about two thirds of a pint,
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              and compreſſ'd by a packthred tyed about
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              it, to looſe a grain and the eighth part of
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              a grain of its former weight, by the receſs
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              of the Air upon my having prickt it: And
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              this with a pair of Scales, which when the
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              full Bladder and the correſpondent weight
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              were in it, would manifeſtly turn either
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              way with the 32 part of a grain. </s>
              <s>And if
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              it be further objected, That the Air in
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              the Bladder was violently compreſſ'd by
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              the Pack-thred and the ſides of the
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              Bladder, we might probably (to wave
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              prolix anſwers) be furniſh'd with a Re­
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              ply, by ſetting down the differing weight
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              of our Receiver, when empty'd and when
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              full of uncompreſſ'd Air, if we could here
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              procure ſcales fit for ſo nice an experiment; </s>
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