Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

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112106JO. BAPT. ALEOTTI lud inſeratur regula Y, quæ quantum per artem fieri licet, ita accuratiſ-
ſimè ſit torno tornata, ut non poſſit alia melius adaptari, ne flatus poſſit
exire, uti Theoremate IX Heronis dictum, ubi tractatur de ſphæra
concava, & in XXVII ubi agitur de tubis quorum uſus eſt incendiis, &
ſit regula de tubo uſque Y per medium perforata, & infixus Y ſit, Tri-

89[Figure 89] ton, per cujus corpus tranſeat tubus vacuus foramini regulæ applumba-
tus, & ille pertingat uſque ad os iſtius Tritonis, & intret in cochleam,
in qua adaptata ſit lingula, qualem tibiæ utriculari adaptare ſolent ruſtici,
poſtea in Y mediante fune appendatur vas 7 intra quod ſit tubus ſpiritalis,
poſtea imponatur funis duabus trochleis 2. 4. ita ut circumvolvatur cir-
cum baculum VT. ſtantem in æquilibrio in 16. & ad extremitatem fu-
nis trochleæ 2. appendatur pondus 6. ad alteram extremitatem ejus,

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Scan	Original
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
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Scan	Original
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
129
130