Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

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7670HERONIS

LIV.

Quædam animalia per os inflata exalio loco aquam ex-
puunt. Ut ſi ſatyriſcus utr@m contineat, per utrem aqua
expuetur.

Sit baſis præcluſa A B C D,

61[Figure 61] in qua animal inſideat, & per
os animalis tubus impellatur
E F, ſimul cum baſi perfora-
tus; habenſque ſubjectum pla-
tyſmation G H obturans tubi
foramen F, & con tentum fibu-
lis retinacula habentibus. Ita
ut non excidat; alius autem tu-
bus K L per baſim impellatur,
cujus alterum quidem extre-
mum K apponatur ei, per quod
volumus aquam expui. Alte-
rum vero L diſteta à fundo,
quantum ad aquæ fluxum ſatis
ſit, habeat autem K ſmeriſma-
tion tenue, quo ejus oſculum
claudatur: infuſo igitur in ba-
ſim humido per quoddam fo-
ramen, quod poſt infuſionem
obturetur, ſi claudentes oſcu-
lum aërem inſpirabimus per
tubum E F, inſpiratus aër im-
pellet platyſmation, & in baſi aër continebitur platyſmation occludens.
Itaque ſublato ſmeriſmatio paulo poſt aër compreſſus humidum, quod
eſt in baſi per oſ culum K magnavi extrudet, quoad totum ejiciatur, &
aër in propriam redeat naturam, hoc eſt compreſſionem in ſeipſo non
amplius habeat.

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