Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

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10498HERONIS vat, contineatur, tibiiſque ſonantibus ſuppeditetur. At embolus RS
ſurſum impulſus, ut dictum eſt, aërem, qui in modiolo continetur in
furnum exprimit; deductus vero aperit platyſmation exiſtens in parvo

85[Figure 85] modiolo, per quod modiolus aëre extrinſecus impletur, ut rurſum em-
bolus in partem ſuperiorem impulſus ipſum in furnum exprimat. Melius
autem eſt & regulam TY circa clavum moveri ad Y circa fibulam unam
exiſtentem in fundo emboli, per quam oportebit clavum impelli, ut
embolusnon convertatur, ſed rectus impellatur ſurſum, & deducatur.

LXXVI.

Organi conſtructio ut vento perflante ſonus tibiæ red-
datur.

Sint tibiæ A, tubus autem tranſverſus cum ipſis perforatus B C, &
rectus D E, ex quo alius tranſverſus EF pertinens in modiolum GH,
habentem ſuperficiem interiorem ad embolum rectam, huic autem a-
ptetur embolus KL, qui ſacile in ipſum ingredi poſſit, & ipſi conjuncta
ſit regula MN appoſita alteri regulæ NX, quæ circa axem PR

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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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126	120
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
129
130

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
129
130