No. ~>3 14.'.. 



Molecular Effects of Gaseous Bodies. Wave Motions. 



411 



53 138. 1 : 8. 



53 140. 1 : 9. 



53 143. 1 : 10. 



53 144. 1 : 10. 



V.i,l4l. Apparatus for showing the absorption of Gases through Solids and Liquids (M. P. II, 

 Fig. 263 [I, Figs. 612 and 615]) 



VJ.I42. Absorptiometer after Bunsen, for the Absorption of Gases through Liquids (M. P. Ill, 

 Fig. 265 [I, Fig. 616]) 



V5,143. Effusiometer after Henniger, Figure, for determining the velocity of outflow of 

 (lases (Kohlrausch, Praktische Physik, 10 th Edn., p. 91) 



s. d. 



0. 2. 



6. 0. 



1. 6. 



Wave Motions. 



>3,144. Longitudinal Wave Machine after Weinhold, Figure (W. D. Fig. 196 [181], | 

 plate IV), for explaining the reflection of waves at the free and fixed end, as well as 

 the existence of stationary waves, with copper spiral 170 cm long, fixed on rotary pegs 



d. 



3. 12. 



,145. -- idem, each winding weighted with a lead ball I 4. 10. 



Apparatus for showing the Elasticity of Air: see p. 366. 



CI. 1018,53.10. .v_>o:t. 

 1020. 



