but the part C at the &longs;ame time is retarded in its motion, as be
<lb/> ing deprived of the progre&longs;&longs;ion dependant on the diurnal motion:
<lb/> If we &longs;uppo&longs;e, I &longs;ay, a tract of Sea as long as the arch B C, we
<lb/> have already &longs;een, that its extreams &longs;hall move in the &longs;ame time
<lb/> with great inequality. </s><s>And extreamly different would the velo­
<lb/> cities of a tract of Sea be that is in length a &longs;emicircle, and pla­
<lb/> ced in the po&longs;ition B C D, in regard that the extream B would
<lb/> be in a mo&longs;t accelerate motion, and the other D, in a mo&longs;t &longs;low
<lb/> one; and the intermediate parts towards C, would be in a
<lb/> moderate motion. </s><s>And according as the &longs;aid tracts of Sea &longs;hall
<lb/> be &longs;horter, they &longs;hall le&longs;&longs;e participate of this extravagant acci­
<lb/> dent, of being in &longs;ome hours of the day with their parts diver&longs;ly
<lb/> affected by velocity and tardity of motion. </s><s>So that, if, as in the fir&longs;t
<lb/> ca&longs;e, we &longs;ee by experience that the acceleration and retardation,
<lb/> though equally imparted to all the parts of the conteining Ve&longs;&longs;el,
<lb/> is the cau&longs;e that the water contained, fluctuates too and again, what
<lb/> may we think would happen in a Ve&longs;&longs;el &longs;o admirably di&longs;po&longs;ed,
<lb/> that retardation and acceleration of motion is very unequally
<lb/> contributed to its parts? </s><s>Certainly we mu&longs;t needs grant that
<lb/> greater and more wonderful cau&longs;es of the commotions in the
<lb/> Water ought to be looked for. </s><s>And though it may &longs;eem im­
<lb/> po&longs;&longs;ible to &longs;ome, that in artificial Machines and Ve&longs;&longs;els we &longs;hould
<lb/> be able to experiment the effects of &longs;uch an accident; yet ne­
<lb/> verthele&longs;&longs;e it is not ab&longs;olutely impo&longs;&longs;ible to be done; and I have
<lb/> by me the model of an Engine, in which the effect of the&longs;e admi­
<lb/> rable commixtions of motions may be particularly ob&longs;erved. </s><s>But
<lb/> as to what concerns our pre&longs;ent purpo&longs;e, that which you may
<lb/> have hitherto comprehended with your imagination may &longs;uf­
<lb/> fice.</s></p>
<p type="main"><s>SAGR. </s><s>I for my own particular very well conceive that this
<lb/> admirable accident ought nece&longs;&longs;arily to evene in the Straights of
<lb/> Seas, and e&longs;pecially in tho&longs;e that di&longs;tend them&longs;elves for a great
<lb/> length from We&longs;t to Ea&longs;t; namely according to the cour&longs;e of
<lb/> the motions of the Terre&longs;trial Globe; and as it is in a certain
<lb/> manner unthought of, and without a pre&longs;ident among the moti­
<lb/> ons po&longs;&longs;ible to be made by us, &longs;o it is not hard for me to believe,
<lb/> that effects may be derived from the &longs;ame, which are not to be i­
<lb/> mitated by our artificial experiments.</s></p>
<p type="main"><s>SALV. </s><s>The&longs;e things being declared, it is time that we pro­
<lb/> ceed to examine the particular accidents, which, together with
<lb/> their diver&longs;ities, are ob&longs;erved by experience in the ebbing and
<lb/> flowing of the waters. </s><s>And fir&longs;t we need not think it hard to </s></p>
<p type="main"><s><arrow.to.target n="marg764"></arrow.to.target>
<lb/> gue&longs;&longs;e whence it happeneth, that in Lakes, Pooles, and al&longs;o in the
<lb/> le&longs;&longs;er Seas there is no notable flux and reflux; the which hath
<lb/> two very &longs;olid rea&longs;ons. </s><s>The one is, that by rea&longs;on of the &longs;hort­