hard, as &longs;uppo&longs;e of bra&longs;s; what think you it would do being let <lb/>
go? </s><s>do not you believe (as for my part I do) that it would lie <lb/>
&longs;till?</s>

<s>SIMPL. </s><s>If that &longs;uperficies were inclining?</s>

<s>SALV. Yes; for &longs;o I have already &longs;uppo&longs;ed.</s>

<s>SIMPL. </s><s>I cannot conceive how it &longs;hould lie &longs;till: nay, I am <lb/>
confident that it would move towards the declivity with much pro <lb/>
pen&longs;ne&longs;s.</s>

<s>SALV. </s><s>Take good heed what you &longs;ay, <emph type="italics"/>Simplicius,<emph.end type="italics"/> for I am <lb/>
confident that it would lie &longs;till in what ever place you &longs;hould lay <lb/>
it.</s>

<s>SIMPL. </s><s>So long as you make u&longs;e of &longs;uch &longs;uppo&longs;itions, <emph type="italics"/>Sal <lb/>
viatus,<emph.end type="italics"/> I &longs;hall cea&longs;e to wonder if you inferr mo&longs;t ab&longs;urd con <lb/>
clu&longs;ions.</s>

<s>SALV. </s><s>Are you a&longs;&longs;ured, then, that it would freely move to <lb/>
wards the declivity?</s>

<s>SIMPL. </s><s>Who doubts it?</s>

<s>SALV. </s><s>And this you verily believe, not becau&longs;e I told you &longs;o, <lb/>
(for I endeavoured to per&longs;wade you to think the contrary) but of <lb/>
your &longs;elf, and upon your natural judgment.</s>

<s>SIMPL. </s><s>Now I &longs;ee what you would be at; you &longs;poke not this <lb/>
as really believing the &longs;ame; but to try me, and to wre&longs;t matter <lb/>
out of my own mouth wherewith to condemn me.</s>

<s>SALV. </s><s>You are in the right. </s><s>And how long would that Ball <lb/>
move, and with what velocity? </s><s>But take notice that I in&longs;tanced <lb/>
in a Ball exactly round, and a plain exqui&longs;itely poli&longs;hed, that all <lb/>
external and accidental impediments might be taken away. </s><s>And <lb/>
&longs;o would I have you remove all ob&longs;tructions cau&longs;ed by the Airs re <lb/>
&longs;i&longs;tance to divi&longs;ion, and all other ca&longs;ual ob&longs;tacles, if any other <lb/>
there can be.</s>

<s>SIMPL. </s><s>I very well under&longs;tand your meaning, and as to your <lb/>
demand, I an&longs;wer, that the Ball would continue to move <emph type="italics"/>in in <lb/>
finitum,<emph.end type="italics"/> if the inclination of the plain &longs;hould &longs;o long la&longs;t, and con <lb/>
tinually with an accelerating motion; for &longs;uch is the nature of <lb/>
ponderous moveables, that <emph type="italics"/>vires acquirant eundo<emph.end type="italics"/>: and the great <lb/>
er the declivity was, the greater the velocity would be.</s>

<s>SALV. </s><s>But if one &longs;hould require that that Ball &longs;hould move <lb/>
upwards on that &longs;ame &longs;uperficies, do you believe that it would <lb/>
&longs;o do?</s>

<s>SIMPL. </s><s>Not &longs;pontaneou&longs;ly; but being drawn, or violently <lb/>
thrown, it may.</s>

<s>SALV. </s><s>And in ca&longs;e it were thru&longs;t forward by the impre&longs;&longs;ion of <lb/>
&longs;ome violent <emph type="italics"/>impetus<emph.end type="italics"/> from without, what and how great would <lb/>
its motion be?</s>

<s>SIMPL. </s><s>The motion would go continually decrea&longs;ing and re