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Excerpt from Popular Technology, Vol. 2 of 2: Or, Professions and Trades By. The hand or barrel organ consists of a movea. Ble cylinder, on which, by means of wires, pins, and staples, are marked the tunes which it is intended to perform. These pins and staples, by the revolution of the barrel, act upon the keys within, and give ad mission to the wind from the bellows to the pipes. The hand organ is so contrived that the revolution of the barrel gives motion to the bellows.

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