downwards, and al&longs;o forwards or backwards ten or fifteen fathom, <lb/>
keeping it all the while parallel to its &longs;elf, the vi&longs;ive ray cannot <lb/>
&longs;tray from the point ob&longs;erved in the object, more than tho&longs;e fif <lb/>
teen fathom; and becau&longs;e in a di&longs;tance of eight or ten miles, the <lb/>
In&longs;trument takes in a much greater &longs;pace than the Gally or other <lb/>
Ve&longs;&longs;el kenn'd; therefore that &longs;mall mutation &longs;hall not make me <lb/>
lo&longs;e &longs;ight of her. </s><s>The impediment therefore, and the cau&longs;e of <lb/>
lo&longs;ing the object cannot befall us, unle&longs;&longs;e upon the mutation made <lb/>
angularly; &longs;ince that <emph type="italics"/>Tele&longs;copes<emph.end type="italics"/> tran&longs;portation higher or lower, to <lb/>
the right, or to the left, by the agitation of the &longs;hip, cannot import <lb/>
any great number of fathomes. </s><s>Now &longs;uppo&longs;e that you had two <lb/>
<emph type="italics"/>Tele&longs;copes<emph.end type="italics"/> fixed, one at the Partners clo&longs;e by the Deck, and the o <lb/>
ther at the round top, nay at the main top, or main top-gallant <lb/>
top, where you hang forth the <emph type="italics"/>Pennon<emph.end type="italics"/> or &longs;treamer, and that they <lb/>
be both directed to the Ve&longs;&longs;el that is ten miles off, tell me, whe <lb/>
ther you believe that any agitation of the &longs;hip, & inclination of the <lb/>
Ma&longs;t, can make greater changes, as to the angle, in the higher tube, <lb/>
than in the lower? </s><s>One wave ari&longs;ing, the prow will make the main <lb/>
top give back fifteen or twenty fathom more than the foot of the <lb/>
Ma&longs;t, and it &longs;hall carry the upper tube along with it &longs;o greata &longs;pace, <lb/>
& the lower it may be not a palm; but the angle &longs;hall change in one <lb/>
In&longs;trument a&longs;well as in the other; and likewi&longs;e a &longs;ide-billow &longs;hall <lb/>
bear the higher tube an hundred times as far to the Larboard or <lb/>
Starboard, as it will the other below; but the angles change not at <lb/>
all, or el&longs;e alter both alike. </s><s>But the mutation to the right hand or <lb/>
left, forwards or backwards, upwards or downwards, bringeth no <lb/>
&longs;en&longs;ible impediment in the kenning of objects remote, though the <lb/>
alteration of the angle maketh great change therein; Therefore it <lb/>
mu&longs;t of nece&longs;&longs;ity be confe&longs;&longs;ed, that the u&longs;e of the <emph type="italics"/>Tele&longs;cope<emph.end type="italics"/> on the <lb/>
round top is no more difficult than upon the Deck at the Partners; <lb/>
&longs;eeing that the angular mutations are alike in both places.</s></p>

<p type="main"><s>SALV. </s><s>How much circum&longs;pection is there to be u&longs;ed in affirming <lb/>
or denying a propo&longs;ition? </s><s>I &longs;ay again, thar hearing it re&longs;olutely affir <lb/>
med, that there is a greater motion made on the Ma&longs;ts top, than at <lb/>
its partners, every one will per&longs;wade him&longs;elf, that the u&longs;e of the <emph type="italics"/>Te <lb/>
le&longs;cope<emph.end type="italics"/> is much more difficult above than below. </s><s>And thus al&longs;o I w <lb/>
ill excu&longs;e tho&longs;e Philo&longs;ophers, who grow impatient and fly out into <lb/>
pa&longs;&longs;ion again&longs;t &longs;uch as will not grant them, that that Cannon bullet <lb/>
which they cleerly &longs;ee to fall in a right line perpendicularly, doth <lb/>
ab&longs;olutely move in that manner; but will have its motion to be by <lb/>
an arch, and al&longs;o very much inclined and tran&longs;ver&longs;al: but let us <lb/>
leave them in the&longs;e labyrinths, and let us hear the other objections, <lb/>
that our Author in hand brings again&longs;t <emph type="italics"/>Copernicus.<emph.end type="italics"/></s></p>

<p type="main"><s>SIMP. </s><s>The Author goeth on to demon&longs;trate that in the Do <lb/>
ctrine of <emph type="italics"/>Copernicus,<emph.end type="italics"/> it is requi&longs;ite to deny the Sen&longs;es, and the