it hath not been likewi&longs;e with a perfect curio&longs;ity inquired, what <lb/>
its cour&longs;e is thorow the particular arches of the Zodiack. </s><s>That <lb/>
therefore the Earth and Moon in running through the Zodiack, <lb/>
that is round the Grand Orb, do &longs;omewhat accellerate at the <lb/>
Moons change, and retard at its full, ought not to be doubted; <lb/>
for that the &longs;aid difference is not manife&longs;t, which cometh to be <lb/>
unob&longs;erved upon two accounts; Fir&longs;t, Becau&longs;e it hath not been <lb/>
lookt for. </s><s>Secondly, Becau&longs;e that its po&longs;&longs;ible it may not be very <lb/>
great. </s><s>Nor is there any need that it &longs;hould be great, for the pro <lb/>
ducing the effect that we &longs;ee in the alteration of the greatne&longs;s of <lb/>
ebbings and flowings. </s><s>For not onely tho&longs;e alterations, but the <lb/>
<arrow.to.target n="marg812"></arrow.to.target> <lb/>
Tides them&longs;elves are but &longs;mall matters in re&longs;pect of the grandure <lb/>
of the &longs;ubjects on which they work; albeit that to us, and to our <lb/>
littlene&longs;s they &longs;eem great. </s><s>For the addition or &longs;ubduction of <lb/>
one degree of velocity where there are naturally 700, or 1000, <lb/>
can be called no great alteration, either in that which conferreth <lb/>
it, or in that Which receiveth it: the Water of our Mediterrane <lb/>
carried about by the diurnal revolution, maketh about 700 miles <lb/>
an hour, (which is the motion common to the Earth and to it, and <lb/>
therefore not perceptible to us) & that which we &longs;en&longs;ibly di&longs;cern <lb/>
to be made in the &longs;treams or currents, is not at the rate of full one <lb/>
mile an hour, (I &longs;peak of the main Seas, and not of the Straights) <lb/>
and this is that which altereth the fir&longs;t, naturall, and grand mo <lb/>
tion; and this motion is very great in re&longs;pect of us, and of Ships: <lb/>
for a Ve&longs;&longs;el that in a &longs;tanding Water by the help of Oares can <lb/>
make <emph type="italics"/>v. </s><s>g.<emph.end type="italics"/> three miles an hour, in that &longs;ame current will row <lb/>
twice as far with the &longs;tream as again&longs;t it: A notable difference <lb/>
in the motion of the Boat, though but very &longs;mall in the motion <lb/>
of the Sea, which is altered but its &longs;even hundredth part. </s><s>The <lb/>
like I &longs;ay of its ri&longs;ing, and falling one, two, or three feet; and <lb/>
&longs;carcely four or five in the utmo&longs;t bounds of a &longs;treight, two thou <lb/>
&longs;and, or more miles long, and where there are depths of hundreds <lb/>
of feet; this alteration is much le&longs;s than if in one of the Boats <lb/>
that bring us fre&longs;h Water, the &longs;aid Water upon the arre&longs;t of the <lb/>
Boat &longs;hould ri&longs;e at the Prow the thickne&longs;s of a leaf. </s><s>I conclude <lb/>
therefore that very &longs;mall alterations in re&longs;pect of the immen&longs;e <lb/>
greatne&longs;s, and extraordinary velocity of the Seas, is &longs;ufficient to <lb/>
make therein great mutations in relation to our &longs;mallne&longs;s, and to <lb/>
our accidents.</s>

<s><margin.target id="marg807"></margin.target><emph type="italics"/>Many things <lb/>
may remain as yet <lb/>
unob&longs;erved in A <lb/>
&longs;tronomy.<emph.end type="italics"/></s>

<s><margin.target id="marg808"></margin.target>Saturn <emph type="italics"/>for its <lb/>
&longs;lowne&longs;s, and<emph.end type="italics"/> Mer <lb/>
cury <emph type="italics"/>for its rare <lb/>
ne&longs;s of appearing <lb/>
were among&longs;t tho&longs;e <lb/>
that were la&longs;t ob <lb/>
&longs;erved.<emph.end type="italics"/></s>

<s><margin.target id="marg809"></margin.target><emph type="italics"/>Particular &longs;tru <lb/>
ctures of the Orbs <lb/>
of the Planets not <lb/>
yet well re&longs;olved.<emph.end type="italics"/></s>

<s><margin.target id="marg810"></margin.target><emph type="italics"/>The Sun pa&longs;&longs; <lb/>
eth one half of the <lb/>
Zodiack nine days <lb/>
&longs;ooner than the <lb/>
other.<emph.end type="italics"/></s>

<s><margin.target id="marg811"></margin.target><emph type="italics"/>The Moons mo <lb/>
tion principally <lb/>
&longs;ought in the ac <lb/>
count of Eclip&longs;es.<emph.end type="italics"/></s>

<s><margin.target id="marg812"></margin.target><emph type="italics"/>Ebbings and <lb/>
flowings are petty <lb/>
things in compari <lb/>
&longs;on of the va&longs;tne&longs;s <lb/>
of Seas, and of the <lb/>
velocity of the mo <lb/>
tion of the Terre <lb/>
&longs;trial Globe.<emph.end type="italics"/></s>

<s>SAGR. </s><s>I am fully &longs;atisfied as to this particular; it remains to <lb/>
declare unto us how tho&longs;e additions and &longs;ub&longs;tractions derived <lb/>
from the diurnal <emph type="italics"/>Vertigo<emph.end type="italics"/> are made one while greater, and ano <lb/>
ther while le&longs;&longs;er; from which alterations you hinted that the an <lb/>
nual period of the augmentations and diminutions of the eb <lb/>
bings and flowings did depend.</s>