cable, each of which would exerci&longs;e our <lb/>
Under&longs;tandings, if not po&longs;e them too, if <lb/>
we would but attentively enough con&longs;ider <lb/>
it, and not &longs;uperficially contemplate, but <lb/>
attempt &longs;atisfactorily to explicate the na<lb/>
ture of it. </s>

 <s>SInce the writing of the twenty one and <lb/>
<arrow.to.target n="marg30"/><lb/>
twenty &longs;econd Experiments (and not<lb/>
with&longs;tanding all that hath been on their <lb/>
occa&longs;ion deliver'd concerning bubbles) we <lb/>
made &longs;ome further tryals in pro&longs;ecution <lb/>
of the &longs;ame inquiry whereto they were <lb/>
de&longs;igned. </s>

 <s><margin.target id="marg30"/><emph type="italics"/>Experi<lb/>
ment<emph.end type="italics"/> 23.</s>

 <s>We cho&longs;e then, among&longs;t tho&longs;e Gla&longs;&longs;es <lb/>
which Chymi&longs;ts are wont to call Philo&longs;o<lb/>
phical Eggs, one that containing about <lb/>
nine Ounces of Water, had a Neck of <lb/>
half an Inch in Diameter at the top, and <lb/>
as we ghe&longs;t, almo&longs;t an Inch at the bot<lb/>
tom; which breadth we pitch'd upon for <lb/>
a rea&longs;on that will by and by appear: then <lb/>
filling it with common Water to the <lb/>
height of about a Foot and a half, &longs;o <lb/>
that the upper part remain'd empty, we <lb/>
&longs;hut it into the Receiver, and watch'd what <lb/>
would follow upon pumping, which pro-