Aristoteles; Strato <Lampsacenus>; Theophrastus, De coloribvs libellvs

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6559IN LIB. DE COLORIBVS. noctu, & in obſcuro appareat, atque ob id albior cer
natur:
deinde propter plurimam nubis denſitatem, &
obſcuritatem ambientem.
iccirco enim Aethiopum
dentes candidiores cæteris videntur, quòd ambiat ni
grities.
Φ{αί}νε{ται} {δὲ} {καὶ} ἡ θ{άλ}α{ττ}α {πο}ρφυρο{ει}{δὴ}ς, ὅ {τα}ν {τὰ}
{κύ}μα{τα} {με}{τε}ω{ρι}ζόꝗ̃α {κα}{τὰ} ♓ι ἔγ{κλ}ι{σι}ν {σκ}ια{σθῆ}.
{πρὸ}ς
{γὰρ} {τὸ}ν {τάυ}{τη}ς {κλ}ι{σμ}ὸν, ἀ{σθ}εν{εῖ}ς {αἱ} {τοῦ} ἡλίου {αὐ} {γαὶ} {προ}-
{σβ}ά{λλ}ουαι, {πο}ιοῦ{σι} φ{αί}νε℞ {τὸ} {χρ}ῶμα {ἁλ}ουρ{γέ}ς.
Apparet præterea mare purpureũ, cùm
vndæ ſublatæ in inclinatione vmbrantur.

nam imbecilles Solis radii in ſedem illaben
tes, efficiunt vt color appareat halurgus.
Explicat aliud problema, quare mare appareat
purpureum, cùm vndæ ſublatæ reclinãtur?
inquiens,
quòd radii Solis debiles, qui emittuntur in eam par-
tem, qua vndæ iactatæ ſe reclinant, &
ſubſident, in
cauſa ſunt, quare eiuſmodi præ ſe ferant colorem.
Ve
rùm, vt res planius intelligatur, animaduertendum
eſt, mare vẽto agitatum turbari, atq.
eſtuare, vt aqua
attollatur, quæ vento impellente procurrat.
& quo-
niam hæc ſublatio eſt violenta, reclinat ſe;
in qua in-
clinatione, &
ſede aqua conduplicatur, atq. ob ſuam
craſsitiem, &
denſitatem apparet nigra, & tenebrico
ſa, in quam vtpote vmbroſam, radii Solis illapſi debi-
litantur.
quò fit vt ob medii obſcuritatẽ, radiorúmq.
imbecillitatem, halurgum induat colorem.
Poteſt ta-
men &
ab externa aliqua cauſa mare purpuraſcere:
nempe ſi radii ſolares per mediam nubẽ purpuream
incidant in mare.
Ο(\ {καὶ} {ἐπὶ} {τῶ}ν {πτ}ερωμά {τω}ν {θε}ωρ{εῖ} {ται}

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