Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

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5751SPIRITAL. LIBER.

XXXVI.

Conſtruitur autem & ſatyriſcus ſuper quadam bafi, utrem
in manibus tenens, cui adjacet labellum; & infuſo in ipſum
humore, ita ut repleatur, aqua per utrem in labellum influet,
& non ſuperfundetur, quouſque tota per utrem aqua eva-
cuata fuerit. Eſt autem conſtructio talis.

42[Figure 42]

Sit quædam baſis A B undique præcluſa, ſive cylindrica, ſive octagona
ornamenti gratia, quæ diaphragmate C D diſtinguatur, & per diaphra-
gma protendatur tubus E F ſimul cum eo perforatus, & ab operculo parum
diſtans: per operculum vero impellatur tubus G H paulum excedens in
partem ſuperiorem, qui habeat labellum ſibi impoſitum, at que à fundo
tantum diſtet, quantum ad aquæ fluxum ſit ſatis: coarctetur autem &
operculo vaſis, & ipſi diaphragmati. Deinde alius tubus K L M ſimiliter
impellatur per operculum, à diaphragmate parum diſtans, coarctatuſque
operculo, & ex ſeipſo in labellum fluxionem deferens. Quod quidem
labellum imponitur tubo G H ſimul cum eo perforatum. His ita conſti-
tutis vas A D impleatur humore per foramen N, quod poſt infuſionem
obturetur. Si igitur in labellum humorem in fundamus deſcendet per

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