Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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SIMP. But this ſeemeth to me a very lame evaſion; for the
verſe party may with as much reaſon reply, that thoſe are
ous wherewith he collecteth the ſtar to have been in the
tary Region.
SALV. Oh Simplicius, if I could but make you comprehend
the craft, though no great craftineſſe of this Author, I ſhould
make you to wonder, and alſo to be angry to ſee how that he
palliating his ſagacity with the vail of the ſimplicity of your ſelf;
and the reſt of meer Philoſophers, would inſinuate himſelf into
your good opinion, by tickling your cars, and ſwelling your
bition, pretending to have convinced and ſilenced theſe petty
Aſtronomers, who went about to aſſault the impregnable
rability of the Peripatetick Heaven, and which is more, to have
foild and conquered them with their own arms.
I will try with all
my ability to do the ſame; and in the mean time let Sagredus
take it in good part, if Simplicius and I try his patience, perhaps
a little too much, whilſt that with a ſuperfluous circumlocution
(ſuperfluous I ſay to his moſt nimble apprehenſion) I go about to
make out a thing, which it is not convenient ſhould be hid and
unknown unto him.
SAGR. I ſhall not onely without wearineſſe, but alſo with
much delight hearken to your diſcourſes; and ſo ought all
tetick Philoſophers, to the end they may know how much they
are oblieged to this their Protector.
SALV. Tell me, Simplicius, whether you do well comprehend,
how, the new ſtar being placed in the meridian circle yonder
wards the North, the ſame to one that from the South ſhould
go towards the North, would ſeem to riſe higher and higher
bove the Horizon, as much as the Pole, although it ſhould have
been ſcituate amongſt the fixed ſtars; but, that in caſe it were
conſiderably lower, that is nearer to the Earth, it would appear
to aſcend more than the ſaid pole, and ſtill more by how much
its vicinity was greater?
SIMP. I think that I do very well conceive the ſame; in
ken whereof I will try if I can make a mathematical Scheme of
it, and in this great circle [in Fig. 1. of this Dialogue.] I will
marke the pole P; and in theſe two lower circles I will note two
ſtars beheld from one place on the Earth, which let be A; and
let the two ſtars be theſe B and C, beheld in the ſame line A B C,
which line I prolong till it meet with a fixed ſtar in D.
And then
walking along the Earth, till I come to the term E, the two
ſtars will appear to me ſeparated from the fixed ſtar D, and
vanced neerer to the pole P, and the lower ſtar B more, which
will appear to me in G, and the ſtar C leſſe, which will ap
pear to me in F, but the fixed ſtar D will have kept the ſame
diſtance from the Pole.

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