No. 53 598. 



Vowel Apparatus. Phonographs, etc. Impact Tones. Interference of Sound. 



461 



53 592. 1 : 7. 



53594. 1: 11. 



53595. 1:11. 



53 597. 1 : 5. 



53.589. Small Edison Phonograph, similar in construction to preceding, Figure, with s. d. 

 open clockwork, with one recording and one reproducing membrane, one sound horn, 



with oak containing case 3. 2. 



53.590. Wax Cylinder, suitable for above phonographs, blank 0. 1. 



53.591. - - i d e m, with music, speech or song 0. 1. 



53.592. Gramophone with Clockwork, Figui e, for reproducing instrumental music, songs 



and speeches 6. 0. 



53.593. Ebonite Disc, suitable for above Gramophone, with instrumental music, song or speech, 



as desired 0. 3. 



Telegraphone after Paulson: see section on "Electricity". 



53, 5! i4. Tone Impact Apparatus after Konig, Figure 20.- 0. 



The apparatus has an iron frame upon which a wheel covered with cloth can move. Four clamps 

 can be moved on two movable spring arms, these clamps taking glass tubes. These bars are clamped on 

 the cloth covered wheel; and as soon as the wheel, whose lower part is immersed in water, is set into motion, 

 impact tones of high intensity occur (Wied. Ann. 12, p. 351, 1881). 



53.595. Sound Interference Tube, Figure (W. D. Figs. 253, 254 [239, 240]), of metal, with 

 adjustable closing bows 1. 10. 



The apparatus should be used with the exciter rod and the clamps of the Kundt Dust Figure 

 Apparatus No. 53,315. If this apparatus is not available, No. 53,596 should be ordered. 



53.596. - - idem, with Dust Figure Exciter Tube, for the tone a, = 435 compound vi- 

 brations (Ia 3 = 870 v. s.) 2. 5.0 



53.597. - - idem, after Quincke, Figure, of glass with rubber tubing (M. P. I, Fig. 789 j 

 [813]) 0. 5.0 



53.598. idem, after Norrcnberg (M. P. I, Fig. 788 [812]), of wood, for building into 



a wall 0. 18. 



C'l. 1181, 5176, 

 1182, 554S. 



