Heron <Alexandrinus> - Heronis Alexandrini spiritalium liber

Heron <Alexandrinus>, Heronis Alexandrini spiritalium liber

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[31.] XXIV.

[32.] XXV.

[33.] XXVI.

[34.] ALITER. Poteſt autem & aliteridem effici.

[35.] XXVII.

[36.] XXVIII.

[37.] XXIX.

[38.] XXX.

[39.] XXXI.

[40.] XXXII.

[41.] XXXIII.

[42.] XXXIV.

[43.] XXXV.

[44.] XXXVI.

[45.] XXXVII.

[46.] XXXVIII.

[47.] XXXIX.

[48.] XL.

[49.] XLI.

[50.] XLII.

[51.] XLIII.

[52.] XLIV.

[53.] XLV.

[54.] XLVI.

[55.] XLVII.

[56.] XLVIII.

[57.] XLIX.

[58.] L,

[59.] LI.

[60.] LII.

6054HERONIS

XXXVIII.

Contingit etiam aliter accenſo igne valvas aperiri.

45[Figure 45]

Sit rurſus ſacellum in aliqua bafi A B C D, in qua ſit ara E: & per
aram tubus F G H referatur in parvum utrem K undique præcluſum. Utri
vero ſubijciatur pondus L, ex quo catenula per trochleam religetur ad
catenulas, quæ ſunt circa cardines, ita ut compreſſo utre pondus L evin-
cat, & valvas claudat: impoſito autem igne aperiat. Rurſus enim aër, qui
eſt in ara calore effuſus per tubum F G H in utrem procedet, & ipſum una
cum pondere L attrahet, & valvæ aperientur. Nam vel ipſæ per ſeipſas
ſponte aperientur, quemadmodum balnearum valvæ ſponte

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