450 



Acoustics. 



No. 53512- 



53518. 1 : 6. 



53.282. Reed Pipe, Figure 53,282, p. 429, with sound horn, c_ 1 = 64 compound vibrations * (1 

 (ut 1 = 128 v. s.), deep tone 1. <i. o 



53.512. 9 Resonators for above, spherical, open, of shoot zinc, accurately adjusted, from L )nci t<> 



10 th overtone of c.j (ut,) l.lo. 



53.513. - - i d e in, closed 1. 12. 



53.514. 11 Cylindrical Resonators, of pasteboard, Figure, covered, for the 2 nd to 12 th pai t ial 



tone of c_! (ut x ) 1. 0. 



53.515. 15. Resonators for Pipe No. 53,282, conical, covered, from 1 st to 15 th overtone (2 nd to 



16 th partial tone) of c_ t (utj 2. 5. o 



53.516. 19 Resonators for Pipe No. 53,282, after Ilolmholtz, Figure, spherical, for the 

 first 19 overtones of c_! = 64 compound vibrations (utj = 128 \ . s.), guaranteed accurate 



in tone and well constructed, on board, with wood handles 7. 10. o 



The resonators are constructed of stout sheet brass and accurately adjusted. 

 In view of its bulky nature the fundamental tone is not included in the sei. 



53.283. Reed Pipe with Hound Horn, of. Figure 53,282, p. -129, e = 128 compound vibrations 



(ut 2 = 256 v. s.), with deep tone 1. (I. 



(I. 5311, 5445, 

 1107,5033. 



