Suction there mu&longs;t be &longs;ome Endeavour <lb/> or motion in the &longs;ucking to attract the <lb/> &longs;ucked Body. </s>
<s>But in our la&longs;t Experi­<lb/> ment it appeares not at all how the up­<lb/> per part of the empty'd Cylinder that re­<lb/> maines movele&longs;s all the while, or any <lb/> part of it, does at all endeavour to draw <lb/> to it the depre&longs;&longs;ed Sucker and the an­<lb/> nex'd weights. </s>
<s>And yet tho&longs;e that be­<lb/> hold the a&longs;cention of the Sucker, without <lb/> &longs;eriou&longs;ly con&longs;idering the cau&longs;e of it, doe <lb/> readily conclude it to be ray&longs;'d by &longs;ome­<lb/> thing that powerfully Sucks or attracts <lb/> it, though they &longs;ee not what that may <lb/> be or where it lurks. </s>
<s>So that it &longs;eemes <lb/> not ab&longs;olutely nece&longs;&longs;ary to Suction, that <lb/> there be in the Body, which is &longs;aid to &longs;uck, <lb/> an endeavor or motion in order thereun­<lb/> to, but rather that Suction may be at lea&longs;t <lb/> for the mo&longs;t part reduc'd to Pul&longs;ion, and <lb/> its effects a&longs;crib'd to &longs;uch a pre&longs;&longs;ure of <lb/> the neighboring air upon tho&longs;e Bodies <lb/> (whther aërial, or of other Natures) that <lb/> are contiguous to the Body that is &longs;ayd to <lb/> attract them, as is &longs;tronger than that Sub­<lb/> &longs;tance which po&longs;&longs;e&longs;&longs;es the cavity of that <lb/> &longs;ucking Body is able to re&longs;i&longs;t. </s>
<s>To ob­<lb/> ject here, that it was &longs;ome particles of <lb/> Air remaining in the empty'd Cylin-