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THE PYROPHONE.
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Fig. 1.—Tube with Singing-Flames showing Mechanism by which the Gas-Jets are made to diverge, and thus give rise to the Sound. | Fig. 2.—Same, with Flames united, when no Sound is produced. |
Fig. 1.—Tube with Singing-Flames showing Mechanism by which the Gas-Jets are made to diverge, and thus give rise to the Sound. | Fig. 2.—Same, with Flames united, when no Sound is produced. |