Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

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3731SPIRITAL. LIBER.

XVIII.

In quædam vaſa prius infuſo vino, quando aquam infun-
dimus, interdum quidem aqua pura, interdum vero pu-
rum vinum effluit: conſtruitur autem hoc modo.

Sit vas A B C habens

24[Figure 24] duo diaphragmata D E
F G, & per utraque ipſo-
rum impellatur tubus H
K, coarctatus diaphra-
gmatibus, & perforatus fo-
ramine L paulo ſupra dia-
phragma F G ſub dia-
phragmate vero D E ſit
ſpiraculum M in ventre
vaſis. His ita ſe habenti-
bus: ſi quis comprehen-
dens effluxionem C infun-
dat vinum, procedet per
foramen L inlocum D E
F G: aër enim, qui in
ipſo eſt per ſpiraculum M
recedet. Quando igitur di-
gito obturemus ſpiraculum M, vinum in D E F G loco detinebitur. Et
quando aquam infundamus in partem vaſis A B D E claudentes ſpiraculum
M pura fluet aqua. Si vero dimittamus M ſpiraculum, cum adhuc in parte
ſuperiori ſit aqua, mixtum effluet: & poſtea quam aqua effluxerit, tunc
purum effluet vinum: licet etiam fæpius dimiſſo ſpiraculo M difterentes
effluxiones fieri: ſed melius eſt prius infundentes aquam in locum D E
F G, ſpiraculumque comprehendentes vinum infundere: continget
enim aliquando quidem purum effluere vinum; dimiſlo autem ſpiraculo
mixtum: & rurſus comprehenſo vinum purum effluere: idque toties
fiet, quoties ipſi voluerimus.

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Scan	Original
61	55
62	56
63	57
64	58
65	59
66	60
67	61
68	62
69	63
70	64
71	65
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