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# Title: [Physica, Id Est, Scientia Rerum Corporearum, In Decem Tractatus Distributa] Physica, Id Est, Scientia Rervm Corporearvm, In Decem Tractatvs Distribvta (shelfmarks Leibn. Marg. 7:1-2; ZEN Leibn. Marg. 7:1-2)
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LIB. III. DE LVCE EF LVMTNe.
PROP. LXXVTTI.
Trinc constat quid de felibus; no-
ctuis, es cunctis fere animancibus,
quae res obiectas noctu vident; di-
cendum sit: Vulgo credicur, Feles
v. 9. ex oculis lucem emittere, sed
Profecto nunquam illud obleruare
porui; Felem habui in obscurissi-
no conclaui, oculos illius curio-
sistime aspexi. Ced nihil lucis vidii
equidem mutcum lumen oculo ic.
Aectie, ve nemo nelcie; led quod
recam, e incimam, acque oculis
innacam lucem habeac, nullo vn-
quam experimento comprobare
pocui; iditur dicendum est, haec
animalia ideo de nocte videre,
quod rerinam praeparatissimam ha-
beanc, aeque adeo ab ca, quan-
cumuis debilissima luce, quae cun-
etis corporibus inest, altrciatur;
idem dico de noctua in cuius ocu-
lis nullam onguam lucem ridi, li-
cer mulcam diligentiam adhibue.
rim; idem de relpercilionibusiim-
moidem de canc, cquo, Bouc,
ecc. nam hac animalia de nocte
rident.
PROD. LXZIX.
Flinc animalia, quae maximé de
nocte vident, diurna luce perstrin-
guntur, Ye noctua, velpertilio:
nempe ideo lux oculum perstrin-
sic, quod recina plus aequo aF-
ticiacur; igieur C lux diurna
modica, recinam plus aquo acti-
ciat, cerre nocturna, quae lonoc
minor est, debiro modo afciet:
hinc non neminem aliquando vidi,
qui cum rix modicam lucem ferre
polter, lecebat camen in remoris-
in quo nosips rix hominis vul-
cum distinguere poreramus: Tlinc
ii, qui ophchalmia laborane, mo-
dico lumine indigene, ve videanc,
quod alteri, qui oculum inceorurm
habet, ad visionem, minime CnF-
Rcic: de oculis piscium, idem di-
co, a me nunquam obteruari po-
cuisse, vecum lucem ex oculis emie-
cerene; muleos vidi, cum viven-
tes, cum vica carences, in Equamis
lucem vidis in oculis nunguam:
Si quis eamen oculum lucencem,
luce Ccilicet sibi innaca unquam
viderie, de quo ralde dubiro, illa
lux non cerina inerae, Ccd vuca,
vel cerro cuidam humori, qui
corneam incer de rueam, (cilicee
circa veriulque margines concine
tur; si enim rerina ellec lucida,
cerre ab ipla luce, Caltem minore,
minime altici polter, nec enim lu-
cidum agic in lucidum, ve lib. vI-
cimo demonstrabimus; quid por-
10, de rnde (c illa lux, quae vuca
Forre inellec, iuxca peemistam
hypoch. idem prortus de illa di-
cendum, quod dicemus infra de
cicindelae, ee Equamarum luces
_c.
PROP. L X XX.
Finc ratio lueulenti experimenti,
quod nonnullis accidit, qui oum Ee-
beciorem visum habeant a natura
sua, ita nonnunguam illis acuitur
vc ea breni comporis spatio distinctis.
sime videant, quae confuse canium
in dara distancia, videre solents
Immo aliguando cum arnieo conta-
bulabae, is aurem non ita vilu pol-
lebac, cum longinquam Catis, in
obiecto pariere lcripcuram, ita di-
Limo à lucerna angulo, de minu- Pincte vidic, re oculus pronimé
niltimos characteres distinguebat, admocus eAe videretUE, quatu
EaICI