impeded it: The which again is directly opposite to what _Aristotle_ saith, namely, that Figures are not the Causes of Motion. Besides, if _Aristotle_ had admitted and not excluded Figures from being Causes of not moving in some Bodies, which moulded into another Figure would move, he would have impertinently propounded in a dubitative manner, in the words immediately following, whence it is, that the large and thinne Plates of Lead or Iron, rest upon the water, since the Cause was apparent, namely, the Amplitude of Figure. Let us conclude, therefore, that the meaning of _Aristotle_ in this place is to affirm, that Figures are not the Causes of absolutely moving or not moving, but only of moving swiftly or slowly: which we ought the rather to believe, in regard it is indeed a most true conceipt and opinion. Now the mind of _Aristotle_ being such, and appearing by consequence, rather contrary at the first sight, then favourable to the assertion of the Oponents, it is necessary, that their Interpretation be not exactly the same with that, but such, as being in part understood by some of them, and in part by others, was set down: and it may easily be indeed so, being an Interpretation consonent to the sence of the more famous Interpretors, which is, that the Adverbe _Simply_ or _Absolutely_, put in the Text, ought not to be joyned to the Verbe to _Move_, but with the Noun _Causes_: so that the purport of _Aristotles_ words, is to affirm, That Figures are not the Causes absolutely of moving or not moving, but yet are Causes _Secundum quid_, _viz._ in some sort; by which means, they are called Auxiliary and Concomitant Causes: and this Proposition is received and asserted as true by _Signor Buonamico Lib. 5. Cap. 28._ where he thus writes. _There are other Causes concomitant, by which some things float, and others sink, among which the Figures of Bodies hath the first place_, &c. Concerning this Proposition, I meet with many doubts and difficulties, for which me thinks the words of _Aristotle_ are not capable of such a construction and sence, and the difficulties are these.