t is not marred by bad The horn then appears as in the picture. If it is in- production. The more beautiful a voice and the more taken and pressed down over the funnel shaped end of the horn, the funnel being 5 or 6 inches in diameter, tended to take photographs from the membrane, it perfectly… … PLATE II-TONE PHOTOGBAPHY-BECOBDING THE TONES OF THE VOICES OF CELEBBATED SINGEBS TAKEN WITH THE TONOGBAPH BY HOLBBOOK CUBTIS H.D. 11897 SCIENTIFIC AMERICAN, INC.
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