Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

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8579SPIRITAL. LIBER. pinquus aër, atque hic infuſam in collum aquam ſimul attrahet, ita ut ſu-
peremineat oſculum F. Ac propterea aëre ingreſſum habente canalis P
fluet, quouſque poculum ſurſum impulſum, faciat aquam, quæ eſt in col-
lo, reſpirationem obſtruere. Rurſus enim in priorem locum reſtituetur,
& non amplius fluet P canalis: idque toties fiet, quoties ſubtrahitur, &
offertur poculum. Oportet autem non totum poculum ſubtrahi, ne to-
tum ſiphonis crus denudetur. Itaque canalis M N conformetur in thyr-
ſum, & R N circa ipſum ut ſpectaculum recte ſit diſpoſitum.

LXIII.

Conſtructio lagenæ vociferantis, quando humidum ef-
fluat.

Sit deſcripta lagena col-

70[Figure 70] lum quidem obſtructum
habens diaphragmate A B,
os vero diaphragmate
C D: & per utraque dia-
phragmata producatur tu-
bus E F ſimul cum ipſis
perforatus. Lagenæ autem
auricula ſit G H: atque ex
altera parte ſit tubus K L
ſimul perforatus cum A B
diaphragmate & ab ipſo
C D tantum diſtans, quan-
tum ad aquæ fluxum ſuffi-
ciat. Ad diaphragma vero
C D ſit ſyringula M, quæ
vocem edere poſſit. Ita-
que implebitur lagena per
tubum E F, aëre tum per
K L tubum, tum per ſy-
ringulam M excedente.
Quando igitur lagenæ au-
riculam detinentes reclina-
mus ita ut aqua effluat,
fluet quidem per tubum
E F in partes exteriores;
per K L vero procedet in collum B C. Et qui in ipſo eſt aër expulſus

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Scan	Original
101	95
102	96
103	97
104	98
105	99
106
107
108	102
109	103
110	104
111	105
112	106
113	107
114	108
115	109
116	110
117	111
118	112
119	113
120	114
121	115
122	116
123	117
124	118
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127
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Scan	Original
101	95
102	96
103	97
104	98
105	99
106
107
108	102
109	103
110	104
111	105
112	106
113	107
114	108
115	109
116	110
117	111
118	112
119	113
120	114
121	115
122	116
123	117
124	118
125	119
126	120
127
128
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