462 



Acoustics. 



No. 53599- 



53599. 1:8. 



53 600. 1 : 5. 



53 601. 1 : 10. 



53 602. 



53 603, 53 339, 53 517, 53 298. 1:12. 



53.599. Sound Interference Apparatus after Drenteln, Figure, consisting of two tuned 

 glass resonators with three attachments, two india-rubber tubes each 35 cm long, and 

 one ditto 70 cm long (Ztschr. . d. phys. u. chem. U., 7, p. 273) 



The glass cylinder with blowing tube and small lamp No. 53,459 should be used in conjunction 

 with this apparatus. 



53.600. Sound Interference Apparatus with Tuning Fork and Receiver Membrane, F i g u r e, 



with two indiarubber tubes and drum-stick (Fr. phys. Techn. IT, 2, Fig. 3088) . . . 



53.601. Apparatus for Comparing Two Tones of Pipes by Konig's Manometric Flame Method, 

 Figure (Pogg. Ann. 146, l.STii, p. 166) 



The apparatus consists of a wind chest with two valves. ."> pipes (e,. c,. c,. g,, c., [ut.,. nt :) . mi 3 , so! 3 , 

 ut 4 ]), 1 stand for 2 manometer flames and a rotating mirror on stand No. (il.4!in. 



53.602. Fork-shaped Tube, F i g u re (M. P. I, Fig. 787 [811]), for demonstrating the inter- 

 ference of sound waves by the aid of Chladni's Sound Figure Disc. 



I 'i ice without Sound Figure Disc 



s. d. 



0. 6. 



0. 18. 



10. 0.0 



li. 15.0 





53,603. Sound Interference Apparatus after Konig, Figure, with (luce manometer flames 



and one small mirror (ef. I'ogg. Ann. 1872, Vol. 146, p. 195) II. 0. 



The apparatus consists of a stand uilh tulie. the latter being divided at the ends into two :inn-. 

 one of which can lie lengthened at will, and a, stand with three <;a~ flame manometers. If the innermost 

 gas flame i.; replaced by a small mirror the upper edge of which readies to half the height of the gas flame, 



rl. ;.860, 5741. 6029 1 . 

 1184, 1185. 



