Full text: Alexandrinus, Heron: Heronis Alexandrini Spiritalium liber

23. XVI.

Simili ratione & tubarum ſoni fiunt.

0035-01

Quando enim in vas præcluſum demittatur caulis infundibuli, parum
à fundo diſtans, & vaſis operculo coarctetur: deinde tuba habens & codona & lingulam, ſimul perforata cum vaſe in parte ſuperiori ipſius; contingit infuſo perinfundibulum humido aërem, qui in ipſo eſt, extru-
ſum per lingulam ſonum perficere.

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